Agricultural pollution combined grid coordination purification system with CPN multi-pollutant efficient degradation

Abstract

The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification. The application discloses a CPN multi-pollutant efficient degradation agricultural sewage combined grid coordination purification system and belongs to the technical field of sewage purification.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage purification, and in particular relates to a CPN multi-pollutant efficient agricultural pollution coordinated purification system. Background Art

[0002] For the pollutants in rural domestic sewage, mainly including organic matter (C), phosphorus (P) pollutants, nitrogen (N) pollutants, pathogenic microorganisms and other removal targets, the existing technology basically uses AO or A 2 In conventional biochemical denitrification and phosphorus removal processes, such as those involving O, the biochemical tanks lack filler or are poorly filled and dosed. This results in a failure to fluidize and activate the filler within the reaction unit, leading to severe accumulation or loss of filler. This also severely impacts uniform aeration within the reaction tank, resulting in low ammonia nitrogen removal rates. Improper fan and pump selection is common, particularly for submersible pumps installed underwater for lift and internal and external return flows. Corrosion can frequently cause operational downtime. The commonly used air lift reflux method is difficult to control, making it difficult to quantitatively control optimal operating conditions. The single dosing method for denitrification, phosphorus removal, and disinfection (relying on a single solid or liquid agent) often results in insufficient agent supply and a lack of backup switching modes, compromising purification effectiveness. In the sedimentation, disinfection, and effluent units, there are no measures to remove sludge, which often leads to anaerobic sedimentation and decay at the bottom, reducing the effective tank capacity and compromising treatment efficiency. The water collection regulation, anaerobic, and anoxic units lack appropriate fluidization dynamics disturbance measures, resulting in poor turbulent flow response and reduced effective reaction contact residence time (HRT). The overall scheduling model is single and difficult to feedforward adapt to adverse inflow conditions (such as low water temperatures in winter, high-load water quality impacts, and high-volume water impacts). This makes it difficult to ensure control adaptability, economical operation and maintenance, convenient maintenance, and reliable water output. Summary of the Invention

[0003] The purpose of the present invention is to provide a CPN multi-pollutant efficient degradation agricultural pollution complex coordination purification system to solve the deficiencies in the prior art.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0005] A CPN multi-pollutant efficient agricultural wastewater integrated grid coordination purification system comprises: an integrated grid coordination unit, a water collection and extraction component, a liquid source conduction component, an air source conduction component, a gas-liquid confluence component, an aeration and oxygen release component, a two-phase medium front position internal circulation component, a compressed air source component, a rear position sludge external circulation component, a bottom solids extraction component, a multi-position feeding component, and a water-lifting multi-position configuration packing module group;

[0006] The grid-coordinated integrated unit includes: a source-position equalization and lifting unit, a front-position biochemical unit, a secondary-position biochemical unit, a primary-position biochemical unit, a mud-liquid separation unit, a rear-position interception and filtration strengthening unit, and a terminal-position disinfection and sterilization unit, which are connected in sequence;

[0007] The water collection and extraction component connects the source position balancing and lifting unit with the front position biochemical unit; one end of the liquid source conduction component is connected with the secondary biochemical unit pipeline, and the other end is connected with the gas source conduction component pipeline. The junction of the liquid source conduction component and the gas source conduction component pipeline is connected with the gas-liquid confluence component pipeline, and the gas-liquid confluence component is respectively connected with the source position balancing and lifting unit, the front position biochemical unit, and the secondary biochemical unit pipeline; the gas-liquid confluence component is also connected with the aeration and oxygen release component pipeline, and the aeration and oxygen release component is connected with the main biochemical unit pipeline; one end of the two-phase medium front position internal circulation component is respectively connected with the main biochemical unit and the mud-liquid separation unit pipeline, and the other end is respectively connected with the source position balancing and lifting unit, The front biochemical unit and the secondary biochemical unit are connected by pipeline; the rear sludge external circulation component connects the mud-liquid separation unit with the front biochemical unit; the bottom solid extraction component is respectively connected with the rear interception and filtration enhancement unit and the terminal disinfection and sterilization unit pipeline, and is used to collect and store the bottom solids in the rear interception and filtration enhancement unit and the terminal disinfection and sterilization unit; one end of the compressed air source component is connected with the gas-liquid confluence component pipeline, and the other end is respectively connected with the rear sludge external circulation component and the bottom solid extraction component pipeline; the compressed air source component is used to transport the compressed air source for the water collection and extraction component, the liquid source conduction component, the two-phase medium front internal circulation component, the rear sludge external circulation component, and the bottom solid extraction component;

[0008] The multi-position feeding components include: an external dual-carbon source electron donor, a liquid phosphorus removal dosing component, and a liquid disinfection dosing component, which are respectively installed on the front biochemical unit, the main biochemical unit, and the end disinfection and sterilization unit;

[0009] The water-lifting multi-position filler module group is placed inside the front biochemical unit, the secondary biochemical unit, the mud-liquid separation unit and the rear interception and filtration strengthening unit.

[0010] Preferably, the water collection and extraction component includes: a water pump group component, the water pump group component is connected to a first water suction pipe component and a first water outlet pipe component, the first water suction pipe component is connected to the source position balancing and lifting unit, the first water outlet pipe component is connected to the front position biochemical unit, the first water outlet pipe component is also branched with a call back water volume component, the call back water volume component is connected to the source position balancing and lifting unit, the first water outlet pipe component is provided with an electromagnetic flowmeter element, and the call back water volume component is provided with a control valve.

[0011] Preferably, the liquid source conducting component includes: a liquid flushing pump assembly component, the liquid flushing pump assembly component is connected to a second water suction pipe component and a second water outlet pipe component, the second water suction pipe component is connected to the secondary biochemical unit, the second water outlet pipe component is provided with an air-water drainage ejector and a control valve, and the second water outlet pipe component is connected to the air source conducting component;

[0012] The air source conduction component includes: an air pump assembly component, the air pump assembly component is connected to a first air pipe component, the first air pipe component is provided with a control valve, the first air pipe component is connected to a second water outlet pipe component, and the junction of the first air pipe component and the second water outlet pipe component is connected to a gas-liquid confluence component;

[0013] The gas-liquid confluence component includes: a first connecting pipe portion, one end of the first connecting pipe portion is connected to the junction of the first air pipe portion and the second water outlet pipe portion, and the other end branches into a second connecting pipe portion and a third connecting pipe portion, the second connecting pipe portion branches into a first branch pipe portion, a second branch pipe portion and a third branch pipe portion, the first branch pipe portion is connected to the bottom of the source position equalization lifting unit and is connected to an E-type configuration, the second branch pipe portion and the third branch pipe portion are respectively connected to the bottom of the front biochemical unit and the secondary biochemical unit and are respectively connected to an F-type configuration, the third connecting pipe portion branches into a branch bypass pipe portion, the third connecting pipe portion and the branch bypass pipe portion are respectively connected to the aeration and oxygen release component, and the second connecting pipe portion, the first branch pipe portion, the second branch pipe portion, the third branch pipe portion, the third connecting pipe portion and the branch bypass pipe portion are all provided with control valves.

[0014] Preferably, the E-type configuration includes: a first connecting short straight pipe section and a second curved diffuser pipe section, the first connecting short straight pipe section includes: a first first section pipe section, a first first section pipe section, and up to a first last section pipe section; the second curved diffuser pipe section includes: a second first section pipe section, a second second section pipe section, and up to a second last section pipe section; one end of the first first section pipe section is connected to the first branch pipe section, and the other end is connected to the second first section pipe section, and the second first section pipe section is then connected to the first first section pipe section, until the first last section pipe section is connected to the second last section pipe section; the second curved diffuser pipe section is symmetrical on both sides of the horizontal tube center or symmetrical on both sides at 45° downward, with a number of 3-8mm outflow holes at intervals of 5-15cm.

[0015] Preferably, the F-type configuration includes: a third connecting short straight pipe section and a fourth circular curved diffuser pipe section, the third connecting short straight pipe section includes: a third first section pipe section, a third third section pipe section, and up to a third last section pipe section; the fourth circular curved diffuser pipe section includes: a fourth first section pipe section, a fourth second section pipe section, and up to a fourth last section pipe section; one end of the third first section pipe section is connected to the second sectional pipe section or the third sectional pipe section, and the other end is connected to the fourth first section pipe section, and the fourth first section pipe section is then connected to the third third section pipe section, until the third last section pipe section is connected to the fourth last section pipe section; the fourth circular curved diffuser pipe section is symmetrical on both sides of the horizontal tube center or symmetrical on both sides at 45° downward, and a number of 3-8mm outflow holes are opened at intervals of 5-15cm.

[0016] Preferably, the aeration and oxygen release component includes: an aeration air pump group component, the aeration air pump group component leads to a second air pipe component, the second air pipe component branches into a first zonal air pipe part and a second zonal air pipe part, the first zonal air pipe part branches into a first pipe part and a second pipe part, the first pipe part is connected to the front end bottom of the main biochemical unit, the second pipe part is connected to the third connecting pipe part, the second zonal air pipe part is connected to the third pipe part, the third pipe part is connected to the rear end bottom of the main biochemical unit, the bottom end of the first pipe part or the third pipe part is connected to a G-type configuration, the junction of the second zonal air pipe part and the third pipe part is connected to the bypass pipe part, and the first pipe part, the second zonal air pipe part, the third pipe part and the second pipe part are all provided with control valves.

[0017] Preferably, the G-type configuration includes: a fifth connecting short straight pipe section and a sixth full-annular diffuser section, the fifth connecting short straight pipe section includes: a fifth first-section straight pipe section, a fifth second-section straight pipe section, and up to a fifth last-section straight pipe section; the sixth full-annular diffuser section includes: a sixth first-section annular pipe section, a sixth second-section annular pipe section, and up to a sixth last-section annular pipe section; one end of the fifth first-section straight pipe section is connected to the first pipe section or the third pipe section, and the other end is connected to the sixth first-section annular pipe section, and the sixth first-section annular pipe section is then connected to the fifth second-section straight pipe section, until the fifth last-section straight pipe section is connected to the sixth last-section annular pipe section; the fifth connecting short straight pipe section and the sixth full-annular diffuser section are symmetrically arranged on both sides of the horizontal pipe center or symmetrically arranged at 45° downward, with a number of 3-8mm outflow holes at intervals of 5-15cm.

[0018] Preferably, the post-sludge external circulation component includes: an external circulation pump group component, the external circulation pump group component is connected to a sedimentation sludge phase suction pipe component and a sludge outlet pipe component, the sedimentation sludge phase suction pipe component is connected to the bottom of the mud-liquid separation unit, and is connected with an H-type configuration, the sludge outlet pipe component is branched into a first conveying pipe and a second conveying pipe, the first conveying pipe connects the mud-liquid separation unit with the pre-position biochemical unit, the second conveying pipe is connected to an external sludge treatment device, the first conveying pipe and the second conveying pipe are both provided with control valves, and the first conveying pipe is also provided with an electromagnetic flowmeter element.

[0019] Preferably, the bottom solid extraction component includes: an extraction pump component, one end of the extraction pump component is connected to a first sub-intake pipe component and a second sub-intake pipe component, the first sub-intake pipe component and the second sub-intake pipe component are respectively connected to the bottom of the post-position interception and enhancement unit and the end-position disinfection and sterilization unit, and are each connected with an H-type configuration, the other end of the extraction pump component is connected to a discharge port pipe component, the discharge port pipe component is used to discharge the bottom solids in the post-position interception and enhancement unit and the end-position disinfection and sterilization unit, and the first sub-intake pipe component and the second sub-intake pipe component are both provided with control valves.

[0020] Preferably, the H-type configuration is arranged in a labyrinthine rotating surround; wherein, the head end of the H-type configuration located in the mud-liquid separation unit is connected to the sedimentation sludge phase suction pipe component; the head end of the H-type configuration located in the rear interception and filtration enhancement unit is connected to the first branch suction pipe component; the head end of the H-type configuration located in the end disinfection and sterilization unit is connected to the second branch suction pipe component; a number of 3-8mm outflow holes are opened at intervals of 5-15cm on both sides of the horizontal pipe center or on both sides symmetrically inclined at 45° downward.

[0021] Preferably, the compressed air source component includes: an air compressor component, the air compressor component is connected to a first flexible compressed air source pipe component and a second flexible compressed air source pipe component, the first flexible compressed air source pipe component branches into a third flexible compressed air source pipe component, the third flexible compressed air source pipe component is connected to the bypass pipe portion, the second flexible compressed air source pipe component branches into a fourth flexible compressed air source pipe component, the fourth flexible compressed air source pipe component branches into a fifth flexible compressed air source pipe component, the fifth flexible compressed air source pipe component branches into a sixth flexible compressed air source pipe component and a seventh flexible compressed air source pipe component, the sixth flexible compressed air source pipe component is connected to the sedimentation sludge phase suction pipe component, the seventh flexible compressed air source pipe component is respectively connected to the first sub-suction pipe component and the second sub-suction pipe component, and the first flexible compressed air source pipe component, the third flexible compressed air source pipe component, the fifth flexible compressed air source pipe component, the sixth flexible compressed air source pipe component and the seventh flexible compressed air source pipe component are all provided with control valves.

[0022] Preferably, the double-phase medium front position internal circulation component comprises: an internal circulation pump set component, one end of the internal circulation pump set component is connected with a sludge-water mixed liquid phase suction pipe component and a clear liquid phase suction pipe component, the sludge-water mixed liquid phase suction pipe component is connected to the upper end of the rear end of the main position biochemical unit, the clear liquid phase suction pipe component is connected to the upper end of the front end of the sludge-liquid separation unit, the sludge-water mixed liquid phase suction pipe component and the clear liquid phase suction pipe component are both provided with control valves, the other end of the internal circulation pump set component is connected with a multi-phase outflow pipe component, the multi-phase outflow pipe component is branched with a first branch pipe, a second branch pipe and a third branch pipe, the first branch pipe, the second branch pipe and the third branch pipe are respectively communicated with the source position balanced lifting unit, the front position biochemical unit and the secondary position biochemical unit, the multi-phase outflow pipe component is provided with an electromagnetic flowmeter element, and the first branch pipe, the second branch pipe and the third branch pipe are all provided with control valves.

[0023] Preferably, the emergent multi-position configuration filler module group comprises: an angular emergent water support component, a filler grid cage component is buckled connected below the angular emergent water support component, and a plurality of filler core components are filled in the filler grid cage component.

[0024] Compared with the prior art, the CPN multi-pollutant efficient degradation rural sewage combined coordination purification system has the following advantages:

[0025] The present application mainly aims at removing objects such as organic matter (C), phosphorus (P) pollutants, nitrogen (N) pollutants and pathogenic microorganisms in rural domestic sewage, and is particularly suitable for application scenarios of buried installation equipment. In the combined coordination integrated unit, through integrated degradation technologies such as metabolic decomposition, interception and filtration, sterilization and the like of biochemical complex suspended growth type or attached growth type active bacteria groups, different expected purification water quality targets of pollutants are realized, blind over-treatment of the treatment system is avoided, the single scheduling mode is also avoided, and the multi-effect integrated unit of integrated adaptability, operation and maintenance economy, maintenance convenience and water discharge security can also be comfortably coped with. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0027] Figure 1 Structure diagram of the present application Figure 1 ;

[0028] Figure 2 Structure diagram of the present application Figure 2 ;

[0029] Figure 3 Schematic diagram of the structure of the integrated unit of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a water-lift multi-position packing module group according to the present invention;

[0031] Figure 5 It is a structural schematic diagram of the angular water stand component of the present invention;

[0032] Figure 6 This is a schematic structural diagram of the mud blocking and diversion fitting of the present invention;

[0033] Figure 7 This is the multi-mode control working condition of the present invention;

[0034] Figure 8 It is the E-type configuration of the present invention;

[0035] Figure 9 A duplex formed by two sets of E-type configurations of the present invention;

[0036] Figure 10 It is the F-type configuration of the present invention;

[0037] Figure 11 The double connection formed by two sets of F-type configurations of the present invention;

[0038] Figure 12 It is the G-type configuration of the present invention;

[0039] Figure 13 It is the H-type configuration of the present invention.

[0040] In the figure: 1-linked grid coordination integrated unit, 11-source position balancing and lifting unit, 12-front position biochemical unit, 13-secondary position biochemical unit, 14-main position biochemical unit, 15-mud-liquid separation unit, 15a-mud blocking and diversion accessories, 15a1-convex surface, 15a2-concave surface, 15a3-gap, 16-rear position interception and filtration strengthening unit, 17-end position disinfection and sterilization unit, 2-water collection and extraction components, 21-water pump assembly components, 22-first water suction pipe components, 23-first water outlet pipe components, 24-water adjustment components, 3-liquid source conduction components, 31-liquid flushing pump assembly components, 32-second water suction pipe components, 33-second water outlet pipe components, 4-air source conduction components, 41-air flushing pump assembly components, 42-first air pipe components, 5- Gas-liquid confluence component, 51-first connecting pipe, 52-second connecting pipe, 53-first branch pipe, 54-second branch pipe, 55-third branch pipe, 56-third connecting pipe, 57-bypass pipe, 6-aeration and oxygen release component, 61-aeration air pump group component, 62-second air pipe component, 63-first branch air pipe, 64-first pipe, 65-second branch air pipe, 66-third pipe, 67-second pipe, 7-two-phase medium front position internal circulation component, 71-internal circulation pump group component, 72-mud-water mixed liquid phase suction pipe component, 73-clear liquid phase suction pipe component, 74-multiphase outflow pipe component, 75-first branch pipe, 76-second branch pipe, 77-third branch pipe, 8-compressed air source component, 8 0-the fifteenth flexible compressed air source pipe component, 81-the air compressor component, 82-the first flexible compressed air source pipe component, 83-the eighth flexible compressed air source pipe component, 830-the ninth flexible compressed air source pipe component, 830a-the eleventh flexible compressed air source pipe component, 830b-the twelfth flexible compressed air source pipe component, 831-the tenth flexible compressed air source pipe component, 84-the third flexible compressed air source pipe component, 85-the second flexible compressed air source pipe component, 86-the thirteenth flexible compressed air source pipe component, 87-the fourteenth flexible compressed air source pipe component, 88-the fourth flexible compressed air source pipe component, 89-the fifth flexible compressed air source pipe component, 890-the sixth flexible compressed air source pipe component, 891-the seventh flexible compressed air source pipe component, 9 - Post-position sludge external circulation components, 91-external circulation pump assembly components, 92-settled sludge phase suction pipe components, 93-sludge outlet pipe components, 94-first conveying pipe, 95-second conveying pipe, 10-bottom solid extraction components, 101-extraction pump components, 102-first sub-suction pipe components, 103-second sub-suction pipe components, 104-discharge port pipe components, A-multi-position feeding components, A1-external dual-carbon source electron donor, A11-liquid carbon source dosing components, A12-solid carbon source auxiliary dry powder dosing components, A2-liquid phosphorus removal dosing components, A3-liquid disinfection dosing components, A31-connecting pipe, BCD-water-lifting multi-position configuration filler module group, B-angular water-lifting frame components, B11-first hollow main water-lifting component,B12-Second hollow main water-lifting component, B13-Third hollow main water-lifting component, B21-First connecting component, B21a-First bracket, B22-Second connecting component, B22a-Second bracket, B23-Third connecting component, B23a-Third bracket, C-Filling mesh cage component, D-Filling core component, 1a-Suspended filler, 123-Mud collection slope, E11-First first section pipe, E12-First first section pipe, E1n-First last section pipe, E21-Second first section Pipe section, E22-second section pipe section, E2n-second end section pipe section, F11-third first section pipe section, F12-third third section pipe section, F1n-third end section pipe section, F21-fourth first section pipe section, F22-fourth second section pipe section, F2n-fourth end section pipe section, G11-fifth first section straight pipe section, G12-fifth second section straight pipe section, G1n-fifth end section straight pipe section, G21-sixth first section annular pipe section, G22-sixth second section annular pipe section, G2n-sixth end section annular pipe section. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments:

[0042] refer to Figure 1-13 As shown, the present invention provides a CPN multi-pollutant efficient agricultural pollution coordinated purification system, comprising: a coordinated integrated unit 1, a water collection and extraction component 2, a liquid source conduction component 3, an air source conduction component 4, a gas-liquid confluence component 5, an aeration and oxygen release component 6, a two-phase medium front position internal circulation component 7, a compressed air source component 8, a rear position sludge external circulation component 9, a bottom solids extraction component 10, a multi-position feeding component A, and a water-lifting multi-position configuration packing module group BCD;

[0043] The integrated grid coordination unit 1 comprises: a source-level equalization and lifting unit 11, a pre-biochemical unit 12, a secondary biochemical unit 13, a primary biochemical unit 14, a sludge-liquid separation unit 15, a post-interception and filtration enhancement unit 16, and a terminal disinfection and sterilization unit 17, all connected in sequence. The source-level equalization and lifting unit 11 serves as a source water inlet regulating grid, balancing and buffering sewage water quality and quantity. Under high nitrogen load conditions, it can also be adjusted to serve as an adjustable zone for denitrification and denitrification to supplement the anoxic unit. The pre-biochemical unit 12 serves as a multifunctional adjustable zone, capable of operating as either an anaerobic or aerobic state, depending on the target water quality. The secondary biochemical unit 13 also serves as a multifunctional adjustable zone, capable of operating as either anoxic or aerobic state, depending on the target water quality. The primary biochemical unit 14 serves as an aerated aerobic pollution degradation zone and microbial generation renewal zone. The sludge-liquid separation unit 15 is where the sludge-water mixture from the primary biochemical unit 14 undergoes cross-flow separation (i.e., the sludge phase sinks and the clear liquid phase flows upward). The post-filtration and reinforcement unit 16 serves as a filtering and intercepting unit for particulate matter and suspended matter and a post-reinforcement protection unit. The end-disinfection and sterilization unit 17 serves as a sterilization function for pathogenic microorganisms to ensure that the tail water hygiene indicators meet the standards. A certain volume (the volume filling rate should not exceed 50%, or it can be left unfilled) of suspended filler 1a can also be added to any cell of the front biochemical unit 12, the secondary biochemical unit 13, and the main biochemical unit 14 (an interception net to prevent the loss of filler is provided at the end of each cell, not shown in the figure) to achieve the attachment of activated sludge to the biofilm on the filler, and to achieve symbiosis and co-metabolism of the mud film, especially to deal with the thermal insulation and stability of microorganisms under adverse working conditions such as high water quality shock or low water temperature environment. Conical sludge collection slopes 123 are symmetrically arranged on both sides of the lower bottom of the mud-liquid separation unit 15, the post-interception and filtration enhancement unit 16 and the terminal disinfection and sterilization unit 17, respectively, to facilitate reducing the distribution area of ​​the sludge at the bottom of the mud-liquid separation unit 15, the post-interception and filtration enhancement unit 16 and the terminal disinfection and sterilization unit 17, so as to facilitate the subsequent extraction of the bottom sludge to be relatively concentrated and efficient.

[0044] The water collection and extraction component 2 connects the source position equalization and lifting unit 11 with the front position biochemical unit 12; one end of the liquid source conduction component 3 is connected to the secondary biochemical unit 13 pipeline, and the other end is connected to the gas source conduction component 4 pipeline. The junction of the pipelines of the liquid source conduction component 3 and the gas source conduction component 4 is connected to the gas-liquid confluence component 5 pipeline, and the gas-liquid confluence component 5 is respectively connected to the source position equalization and lifting unit 11, the front position biochemical unit 12, and the secondary biochemical unit 13 pipeline; the gas-liquid confluence component 5 is also connected to the aeration and oxygen release component 6 pipeline, and the aeration and oxygen release component 6 is connected to the main position biochemical unit 14 pipeline; one end of the two-phase medium front position internal circulation component 7 is respectively connected to the main position biochemical unit 14 and the mud-liquid separation unit 15 pipeline, and the other end is respectively connected to the source position equalization and lifting unit 11, The front biochemical unit 12 and the secondary biochemical unit 13 are connected by pipelines; the rear sludge external circulation component 9 connects the mud-liquid separation unit 15 with the front biochemical unit 12; the bottom solid extraction component 10 is connected by pipelines to the rear interception and filtration enhancement unit 16 and the terminal disinfection and sterilization unit 17, respectively, for collecting and storing the bottom solids in the rear interception and filtration enhancement unit 16 and the terminal disinfection and sterilization unit 17; one end of the compressed air source component 8 is connected by pipeline to the gas-liquid confluence component 5, and the other end is connected by pipeline to the rear sludge external circulation component 9 and the bottom solid extraction component 10; the compressed air source component 8 is a compressed air source for the water collection and extraction component 2, the liquid source conduction component 3, the two-phase medium front internal circulation component 7, the rear sludge external circulation component 9, and the bottom solid extraction component 10;

[0045] The multi-position feeding component A includes: an external dual-carbon source electron donor A1 (slow-release or / and instant carbon source), a liquid dephosphorization dosing component A2, and a liquid disinfection dosing component A3. The external dual-carbon source electron donor A1, the liquid dephosphorization dosing component A2, and the liquid disinfection dosing component A3 are respectively installed on the front biochemical unit 12, the main biochemical unit 14, and the end disinfection and sterilization unit 17; further, the external dual-carbon source electron donor A1 includes: a liquid carbon source dosing component Component A11 and solid carbon source (such as glucose, starch, etc.) auxiliary dry powder dosing component A12 (variable frequency fine feeding) can feed the submerged flow into any unit of the front biochemical unit 12 or the secondary biochemical unit 13; the liquid phosphorus removal dosing component A2 feeds the liquid surface layer near the head end or the upper end of the main biochemical unit 14; the liquid disinfection dosing component A3 merges with the second sub-intake pipe component 103 through the connecting pipe A31, and enters the end disinfection and sterilization unit 17 near the bottom to release the disinfection dose.

[0046] The water-lifting multi-position filling module group BCD is placed inside the front biochemical unit 12 , the secondary biochemical unit 13 , the mud-liquid separation unit 15 and the rear interception and filtration enhancement unit 16 .

[0047] As a preferred embodiment, the water collection and extraction component 2 includes: a water pump assembly component 21, the water pump assembly component 21 is connected to a first water suction pipe component 22 and a first water outlet pipe component 23, the first water suction pipe component 22 is connected to the source position balancing lifting unit 11 (flowing out from the source position balancing lifting unit 11), the first water outlet pipe component 23 is connected to the front position biochemical unit 12 (flowing out to the front position biochemical unit 12), the first water outlet pipe component 23 is also branched with a call back water volume component 24, the call back water volume component 24 is connected to the source position balancing lifting unit 11 (returning water to the source position balancing lifting unit 11), the first water outlet pipe component 23 is provided with an electromagnetic flowmeter element, and the call back water volume component 24 is provided with a control valve. The water pump assembly 21 mainly adopts a pneumatic diaphragm pump with a large flux, less pollution blockage, low failure rate and low maintenance, which is installed dryly away from water. An electric diaphragm pump can also be used. If electric power is used, a float liquid level switch is also provided in the source position balancing lifting unit 11, which is interlocked with the water pump assembly 21 for protection (starting at high water level and stopping at low water level).

[0048] As a preferred embodiment, the liquid source conduction component 3 includes: a liquid flushing pump assembly component 31, the liquid flushing pump assembly component 31 is connected to a second water suction pipe component 32 and a second water outlet pipe component 33, the second water suction pipe component 32 is communicated with the secondary biochemical unit 13 (flowing out of the secondary biochemical unit 13), the second water outlet pipe component 33 is provided with an air-water diversion water ejector and a control valve, and the second water outlet pipe component 33 is communicated with the air source conduction component 4; the liquid flushing pump assembly component 31 adopts a water-free dry-installed pneumatic source diaphragm pump with large flux, less fouling, low fault and low maintenance, and can also adopt an electric source diaphragm pump. If electric power is used, a float liquid level switch is also provided in the secondary biochemical unit 13, which is interlocked with the liquid flushing pump assembly component 31 for protection (high water level start-up, low water level shutdown).

[0049] The air source conduction component 4 includes: an air pump assembly component 41 (30~60kPa air pressure), the air pump assembly component 41 is connected to a first air pipe component 42, the first air pipe component 42 is provided with a control valve, the first air pipe component 42 is connected to the second water outlet pipe component 33, and the junction of the first air pipe component 42 and the second water outlet pipe component 33 is connected to the gas-liquid confluence component 5; the air pump assembly component 41 is preferably an electromagnetic air pump with good performance such as large volume, medium air pressure, low power, low fault, low maintenance, and low noise.

[0050] The gas-liquid confluence component 5 includes: a first connecting pipe portion 51, one end of the first connecting pipe portion 51 is connected to the junction of the first air pipe component 42 and the second water outlet pipe component 33, and the other end is branched into a second connecting pipe portion 52 and a third connecting pipe portion 56, the second connecting pipe portion 52 is branched into a first branch pipe portion 53, a second branch pipe portion 54 and a third branch pipe portion 55, the first branch pipe portion 53 is connected to the bottom of the source position equalization lifting unit 11 and is connected to an E-type configuration, the second branch pipe portion 53 is connected to the bottom of the source position equalization lifting unit 11 and is connected to an E-type configuration, and the second branch pipe portion 56 is connected to the source position equalization lifting unit 11. The first connecting pipe section 54 and the third branch pipe section 55 are connected to the bottom of the front biochemical unit 12 and the secondary biochemical unit 13, respectively, and are each connected to an F-type configuration. A bypass pipe section 57 branches from the third connecting pipe section 56, which is in communication with the aeration and oxygen release component 6. Control valves are provided on the second connecting pipe section 52, the first branch pipe section 53, the second branch pipe section 54, the third branch pipe section 55, the third connecting pipe section 56, and the bypass pipe section 57. The gas phase (or the gas-liquid multiphase supplied by the liquid pump section 31 in combination with the gas pump section 41) supplied by the air pump assembly 41 is diverted from the first connecting pipe section 51 to the second connecting pipe section 52 and the third connecting pipe section 56. By ① starting the air source alone (opening the control valves of the air pump assembly 41 and the first air pipe assembly 42; keeping the control valves of the liquid pump assembly 31 and the second water outlet pipe assembly 33 stopped and closed), or ② starting the liquid source alone (opening the control valves of the liquid pump assembly 31 and the second water outlet pipe assembly 33; keeping the control valves of the air pump assembly 41 and the first air pipe assembly 42 stopped and closed), or ③ starting the air and liquid dual sources together (opening the control valves of the liquid pump assembly 31 and the second water outlet pipe assembly 33), And synchronously open the air shock pump assembly component 41 and the control valve of the first air pipe component 42) conduction component, and transmit the flow through the first branch pipe part 53, the second branch pipe part 54, and the third branch pipe part 55 (the control valves of the first branch pipe part 53, the second branch pipe part 54, and the third branch pipe part 55 are in the open state in a one-to-one correspondence), respectively serving as the driving force for ensuring the fluidization state of the water in the source balance lifting unit 11, the front biochemical unit 12, and the secondary biochemical unit 13 (controlling low DO and low ORP levels). The third connecting pipe portion 56 is connected to the branch bypass pipe portion 57, that is, when the control valves of the first air pipe component 42, the third connecting pipe portion 56, and the branch bypass pipe portion 57 are opened, a small amount of gas fluidization can be implemented separately to the rear end part of the main biochemical unit 14 through the air pump assembly component 41, so that the rear end part of the main biochemical unit 14 is in an oxygen-controlled and oxygen-removing zone environment (lower DO and low ORP levels, thereby forming a DO level gradient difference before and after the main biochemical unit 14, that is, the same cell of the main biochemical unit 14 forms the front O aerobic zone and the rear A oxygen-removing zone microenvironment in the same position).

[0051] refer to Figure 8-9As shown, the E-type configuration includes: a first communicating short straight pipe section and a second ring-curved diffusion pipe section, the first communicating short straight pipe section includes: a first first-section pipe section E11, a first second-section pipe section E12, and a first last-section pipe section E1n; the second ring-curved diffusion pipe section includes: a second first-section pipe section E21, a second second-section pipe section E22, and a second last-section pipe section E2n; one end of the first first-section pipe section E11 communicates with the first sub-pipe section 53, and the other end communicates with the second first-section pipe section E21, the second first-section pipe section E21 communicates with the first second-section pipe section E12, and the first last-section pipe section E1n communicates with the second last-section pipe section E2n; the horizontal pipe center symmetrical two side sections or the obliquely downward 45° symmetrical two side sections of the second ring-curved diffusion pipe section are provided with a plurality of 3-8 mm outflow small holes at intervals of 5-15 cm. The overcurrent liquid adopts a unique flow direction of staggered return flow between each section of the second ring-curved diffusion pipe section, which can ensure good mixing turbulent flow effect. The first communicating short straight pipe section can adopt a mode of no small hole or small hole opening in reference to the second ring-curved diffusion pipe section, and the pipe section first and last nodes flow. Preferably, two sets of E-type configurations can be used to form a double connection, and the set-to-set communication and the head-tail connection can be realized by the head-tail communicating pipe E31 and the set closing communicating part E31' to balance and adjust the pipe pressure and pipe resistance between the set pipe sections.

[0052] Reference Figure 10-11 As shown, the F-type configuration includes: a third communicating short straight pipe section and a fourth ring-curved diffusion pipe section, the third communicating short straight pipe section includes: a third first-section pipe section F11, a third second-section pipe section F12, and a third last-section pipe section F1n; the fourth ring-curved diffusion pipe section includes: a fourth first-section pipe section F21, a fourth second-section pipe section F22, and a fourth last-section pipe section F2n; one end of the third first-section pipe section F11 communicates with the second sub-pipe section 54 or the third sub-pipe section 55, and the other end communicates with the fourth first-section pipe section F21, the fourth first-section pipe section F21 communicates with the third second-section pipe section F12, and the third last-section pipe section F1n communicates with the fourth last-section pipe section F2n; the horizontal pipe center symmetrical two side sections or the obliquely downward 45° symmetrical two side sections of the fourth ring-curved diffusion pipe section are provided with a plurality of 3-8 mm outflow small holes at intervals of 5-15 cm. The overcurrent liquid adopts a unique flow direction of staggered ring return flow between each section of the fourth ring-curved diffusion pipe section, which can ensure good mixing turbulent flow effect. The third communicating short straight pipe section can adopt a mode of no small hole or small hole opening in reference to the fourth ring-curved diffusion pipe section, and the pipe section first and last nodes flow. Preferably, two sets of F-type configurations can be used to form a double connection, and the set-to-set communication can be realized by the communicating pipe part F3 to balance and adjust the pipe pressure and pipe resistance between the set pipe sections.

[0053] As a preferred embodiment, the aeration and oxygen release component 6 includes: an aeration air pump group component 61, the aeration air pump group component 61 leads to a second air pipe component 62, the second air pipe component 62 branches into a first branch air pipe portion 63 and a second branch air pipe portion 65, the first branch air pipe portion 63 branches into a first pipe portion 64 and a second pipe portion 67, the first pipe portion 64 is connected to the front end bottom of the main biochemical unit 14, the second pipe portion 67 is connected to the third connecting pipe portion 56, the second branch air pipe portion 65 is connected to the third pipe portion 66, the third pipe portion 66 is connected to the rear end bottom of the main biochemical unit 14, the bottom end of the first pipe portion 64 or the third pipe portion 66 is connected to a G-type configuration, the junction of the second branch air pipe portion 65 and the third pipe portion 66 is connected to the bypass pipe portion 57, and the first pipe portion 64, the second branch air pipe portion 65, the third pipe portion 66 and the second pipe portion 67 are all provided with control valves. When the control valves of the second pipe section 67, the third connecting pipe section 56, and the second connecting pipe section 52 are opened, the aeration air pump assembly 61 can independently provide a large amount of aeration and oxygen to the source-level equalization and lifting unit 11, the pre-biochemical unit 12, and the secondary biochemical unit 13, thereby maintaining a highly aerobic environment (relatively high DO and ORP levels) for the source-level equalization and lifting unit 11, the pre-biochemical unit 12, and the secondary biochemical unit 13. The aeration air pump assembly 61 is preferably an electromagnetic air pump with excellent performance, such as large volume, medium pressure, low power consumption, low failure rate, low maintenance, and low noise.

[0054] refer to Figure 12 As shown, the G-type configuration includes: a fifth connecting short straight pipe section and a sixth full-annular diffuser section, the fifth connecting short straight pipe section including: a fifth first-segment straight pipe section G11, a fifth second-segment straight pipe section G12, and a fifth last-segment straight pipe section G1n; the sixth full-annular diffuser section including: a sixth first-segment annular pipe section G21, a sixth second-segment annular pipe section G22, and a sixth last-segment annular pipe section G2n; one end of the fifth first-segment straight pipe section G11 is connected to the first pipe section 64 or the third pipe section 66, and the other end is connected to the sixth first-segment annular pipe section G21, and the sixth first-segment annular pipe section G21 is further connected to the fifth second-segment straight pipe section G12, until the fifth last-segment straight pipe section G1n is connected to the sixth last-segment annular pipe section G2n; the fifth connecting short straight pipe section and the sixth full-annular diffuser section are symmetrically arranged on both sides of the horizontal pipe center or symmetrically arranged at a 45° angle downward, with a plurality of 3-8 mm outflow holes opened at intervals of 5-15 cm. Aeration diffuses from the inner ring to the outer ring, ensuring excellent aeration turbulence. The G-type configuration utilizes a fifth connecting short straight pipe section and a sixth full-ring diffuser section to achieve horizontal and vertical symmetry. Furthermore, the fifth first straight pipe section G11, the fifth second straight pipe section G12, and finally the fifth final straight pipe section G1n are arranged in a radially interlaced and symmetrical staggered arrangement to balance the dissolved gas volume distribution and pipe pressure and resistance between pipe sections.

[0055] In a preferred embodiment, the downstream sludge external circulation unit 9 includes an external circulation pump assembly 91 connected to a settled sludge phase intake pipe assembly 92 and a sludge discharge pipe assembly 93. The settled sludge phase intake pipe assembly 92 is connected to the bottom of the sludge-liquid separation unit 15 in an H-shaped configuration. The sludge discharge pipe assembly 93 branches into a first delivery pipe 94 and a second delivery pipe 95. The first delivery pipe 94 connects the sludge-liquid separation unit 15 to the upstream biochemical unit 12, and the second delivery pipe 95 connects to an external sludge treatment device. Both the first delivery pipe 94 and the second delivery pipe 95 are equipped with control valves, and the first delivery pipe 94 is also equipped with an electromagnetic flowmeter element. The first delivery pipe 94 allows the external sludge to be returned to the upstream biochemical unit 12 to replenish the activated sludge in the upstream biochemical unit 12, the secondary biochemical unit 13, and the primary biochemical unit 14, thereby maintaining the balance and quantity and quality of the sludge within the entire biochemical treatment system. The external circulation pump assembly 91 adopts a pneumatic diaphragm pump with a large flux, less pollution blockage, low failure rate and low maintenance, which is installed dryly away from water. An electric diaphragm pump can also be used. If electric power is used, a float liquid level switch is set in the mud-liquid separation unit 15 to perform interlocking protection with the external circulation pump assembly 91 (start at high water level and stop at low water level).

[0056] refer to Figure 6 As shown, a mud-blocking and guide fitting 15a is provided at the lower part of the mud-liquid separation unit 15. The mud-blocking and guide fitting 15a is composed of multiple sets of convex surfaces 15a1 and concave surfaces 15a2 connected together. Gaps 15a3 are provided at the upper top of the convex surface 15a1 and the lower bottom of the concave surface 15a2 to facilitate the sludge and water to fall back through the gaps 15a3 and sink to the bottom of the mud-liquid separation unit 15.

[0057] As a preferred embodiment, the bottom solid extraction component 10 includes: an extraction pump component 101, one end of the extraction pump component 101 is connected to a first sub-intake pipe component 102 and a second sub-intake pipe component 103, the first sub-intake pipe component 102 and the second sub-intake pipe component 103 are respectively connected to the bottom of the post-position interception and enhancement unit 16 and the end-position disinfection and sterilization unit 17, and each is connected with an H-type configuration, the other end of the extraction pump component 101 is connected to a discharge port pipe component 104, the discharge port pipe component 104 is used to discharge the bottom solids in the post-position interception and enhancement unit 16 and the end-position disinfection and sterilization unit 17, and the first sub-intake pipe component 102 and the second sub-intake pipe component 103 are both provided with control valves.

[0058] refer to Figure 13As shown, the H-shaped configuration is in a labyrinth rotary surrounding arrangement; wherein the first end of the H-shaped configuration located in the sludge separation unit 15 is communicated with the sediment sludge suction pipe part 92; the first end of the H-shaped configuration located in the rear position of the filter enhanced unit 16 is communicated with the first sub-suction pipe part 102; the first end of the H-shaped configuration located in the end position of the disinfection unit 17 is communicated with the second sub-suction pipe part 103; the horizontal tube core symmetrical two side parts or the oblique downward 45° symmetrical two side parts of the H-shaped configuration are provided with a plurality of 3-8mm outflow small holes at intervals of 5-15cm. The aeration is self-internal and outwardly winding, which can ensure good aeration turbulent flow effect and oxygen transfer gradient uniform diffusion.

[0059] As a preferred embodiment, the compressed air source component 8 includes: an air compressor component 81, the air compressor component 81 is connected to a first flexible compressed air source pipe component 82 and a second flexible compressed air source pipe component 85, the first flexible compressed air source pipe component 82 branches to a third flexible compressed air source pipe component 84, the third flexible compressed air source pipe component 84 is connected to the bypass pipe portion 57, the second flexible compressed air source pipe component 85 branches to a fourth flexible compressed air source pipe component 88, the fourth flexible compressed air source pipe component 88 branches to a fifth flexible compressed air source pipe component 89, the fifth flexible compressed air source pipe component 89 is connected to the bypass pipe portion 57, The compressed air source pipe component 89 branches into a sixth flexible compressed air source pipe component 890 and a seventh flexible compressed air source pipe component 891. The sixth flexible compressed air source pipe component 890 is connected to the sedimentation sludge phase suction pipe component 92, and the seventh flexible compressed air source pipe component 891 is respectively connected to the first branch suction pipe component 102 and the second branch suction pipe component 103. The first flexible compressed air source pipe component 82, the third flexible compressed air source pipe component 84, the fifth flexible compressed air source pipe component 89, the sixth flexible compressed air source pipe component 890 and the seventh flexible compressed air source pipe component 891 are all provided with control valves. Furthermore, the first flexible compressed air source pipe component 82 is further branched into an eighth flexible compressed air source pipe component 83, the eighth flexible compressed air source pipe component 83 is further branched into a ninth flexible compressed air source pipe component 830 and a tenth flexible compressed air source pipe component 831, the ninth flexible compressed air source pipe component 830 is further branched into an eleventh flexible compressed air source pipe component 830a and a twelfth flexible compressed air source pipe component 830b, the eleventh flexible compressed air source pipe component 830a is a compressed air source for the liquid flushing pump component 31, the twelfth flexible compressed air source pipe component 830b is a compressed air source for the water pump component 21, the tenth flexible compressed air source pipe component 831 is a compressed air source for the air-water drainage water ejector Deliver compressed air source; further, the second flexible compressed air source pipe component 85 is also branched into a thirteenth flexible compressed air source pipe component 86 and a fourteenth flexible compressed air source pipe component 87, and the thirteenth flexible compressed air source pipe component 86 and the fourteenth flexible compressed air source pipe component 87 are respectively used to deliver compressed air source to the internal circulation pump group component 71 and the external circulation pump group component 91; further, the fourth flexible compressed air source pipe component 88 is also branched into a fifteenth flexible compressed air source pipe component 80, and the fifteenth flexible compressed air source pipe component 80 is used to deliver compressed air source to the extraction pump component 101 (control valves are provided on 80, 83, 830, 830a, 830b, 831, 86, and 87).

[0060] As a preferred embodiment, the two-phase medium front internal circulation component 7 includes: an internal circulation pump assembly component 71, one end of the internal circulation pump assembly component 71 is connected to a mud-water mixed liquid phase suction pipe component 72 and a clear liquid phase suction pipe component 73, the mud-water mixed liquid phase suction pipe component 72 is connected to the upper rear end of the main biochemical unit 14, and the clear liquid phase suction pipe component 73 is connected to the upper front end of the mud-liquid separation unit 15, and the mud-water mixed liquid phase suction pipe component 72 and the clear liquid phase suction pipe component 73 are both provided with a control valve. The other end of the internal circulation pump assembly 71 is connected to a multiphase outlet pipe assembly 74, which branches into a first branch pipe 75, a second branch pipe 76, and a third branch pipe 77. The first branch pipe 75, the second branch pipe 76, and the third branch pipe 77 are connected to the source equalization lifting unit 11, the pre-biochemical unit 12, and the secondary biochemical unit 13, respectively. An electromagnetic flowmeter element is provided on the multiphase outlet pipe assembly 74, and control valves are provided on the first branch pipe 75, the second branch pipe 76, and the third branch pipe 77. The mud-water mixed liquid phase suction pipe assembly 72 is connected to the mud-water mixed liquid medium at the upper rear end of the primary biochemical unit 14, and the clear liquid phase suction pipe assembly 73 is connected to the clear liquid medium at the upper front end of the mud-liquid separation unit 15. The internal circulation pump assembly 71 adopts a pneumatic diaphragm pump with a large flux, less pollution blockage, low failure rate and low maintenance, which is installed in a dry type away from water. An electric diaphragm pump can also be used. If electric power is used, a float liquid level switch is also provided in the main biochemical unit 14 and the mud-liquid separation unit 15, which is interlocked with the internal circulation pump assembly 71 for protection (high water level to start, low water level to stop).

[0061] refer to Figure 4-5 As shown, the water-emerging multi-position configuration filler module group BCD includes: an angular water-emerging frame component B, a filler grid cage component C is snap-connected to the lower side of the angular water-emerging frame component B, and a plurality of filler core components D are filled in the filler grid cage component C.

[0062] The angular water-lifting frame component B includes: a first hollow main water-lifting component B11, a second hollow main water-lifting component B12 and a third hollow main water-lifting component B13 (such as spherical or cylindrical). The first hollow main water-lifting component B11, the second hollow main water-lifting component B12 and the third hollow main water-lifting component B13 are connected to form a triangular stable structure through a first connecting component B21, a second connecting component B22 and a third connecting component B23. The first connecting component B21, the second connecting component B22 and the third connecting component B23 are respectively fixed with a first bracket B21a, a second bracket B22a and a third bracket B23a, which are used to stably place the filler grid cage component C (which can be easily disassembled and removed from the water for offline maintenance and flushing).

[0063] Each cross section of the filler grid cage component C has a certain porosity to ensure water permeability.

[0064] The filler core component D is divided into slow-release carbon source D1 type (mainly using modified marcasite as electron acceptor, co-denitrification function, and complementary with the external double-material carbon source electron donor A1 to form a biological denitrification enhanced type), slow-release phosphorus removal D2 type (mainly using modified sponge iron, crushed iron shavings and other single or composite phosphorus removal solids to play a chemical co-dephosphorus function, and complementary with the liquid phosphorus removal dosing component A2 to form a chemical phosphorus removal enhanced type), filter filler D3 type (using polyurethane or sponge absorber, ceramsite and other filter materials with large specific surface area, good porosity and strong water permeability to play a role in interception and dephosphorization). The packing elements (e.g., retaining SS and suspended pollutants) are placed within the packing mesh cage component C, thereby integrating with the angular water-lift frame component B and the packing mesh cage component C to form BCD1 (enhanced denitrification type), BCD2 (enhanced phosphorus removal type), and BCD3 (enhanced interception and filtration type), respectively. BCD1 is primarily placed within either the pre-biochemical unit 12 or / and the secondary biochemical unit 13; BCD2 is primarily placed within either the pre-biochemical unit 12 or / and the mud-liquid separation unit 15; and BCD3 is primarily placed within the post-interception and filtration enhancement unit 16. A reverse-purge and oscillation air source pipeline (using an air compressor component 81 as the air source) can also be installed beneath the packing core component D of the water-lift multi-position packing module assembly BCD. Depending on the severity of contaminant accumulation on the packing, pneumatic scrubbing can be performed periodically to restore its flux (not shown in this figure).

[0065] refer to Figure 7As shown, the source-position balancing and lifting unit 11, the front-position biochemical unit 12, the secondary biochemical unit 13, and the main biochemical unit 14 can adopt flexible and efficient operating conditions, that is, the source-position balancing and lifting unit 11 adopts the regulation / anoxic mode, the front-position biochemical unit 12 adopts the anaerobic / aerobic mode, the secondary biochemical unit 13 adopts the anoxic / aerobic mode, and the main biochemical unit 14 adopts the pure aerobic mode, or the front-stage aerobic-back-stage oxygen elimination mode, and through the multi-position feeding component A, and the filler core component D (slow-release carbon source D1 type ; slow-release phosphorus removal D2 type; filter filler D3 type) of liquid agents, solid agents, water-standing slow-release filling agents pre- and post-complementary, dosing trinity, thereby realizing the variable mode control scenarios of pollution reduction, carbon reduction and efficiency improvement such as mode 1, mode 2 and mode 3, such as: 1) Mode 1 is suitable for the requirements of good removal rate of conventional oxygen-consuming pollutants such as COD and ammonia nitrogen, and for the requirements of enhanced removal of nitrogen and phosphorus removal, and the requirements of indicator assessment of effluent COD, ammonia nitrogen, TN (and TP), to ensure that the tail water reaches CO D≤60mg / L, ammonia nitrogen≤10mg / L, TN≤15mg / L, TP≤0.8mg / L or lower discharge or reuse water quality; 2) Mode 2 is applicable when there is no removal requirement for nitrogen and phosphorus removal, and no index assessment requirement for effluent TN (and TP), but there is a clear removal rate requirement for COD, especially ammonia nitrogen pollutant indicators (to cope with adverse operating conditions of low temperature in winter and inactive nitrification and degradation microorganisms), ensuring that the tail water achieves COD≤50mg / L, ammonia nitrogen≤5mg / L or lower discharge or reuse water quality; 3) Mode 3 is applicable when there are enhanced removal requirements for nitrogen and phosphorus removal, especially high nitrogen removal requirements (facing high nitrogen influent load or low nitrogen effluent limit requirements), and there are index assessment requirements for effluent COD, ammonia nitrogen, TN (and TP), ensuring that the tail water achieves COD ≤ 50mg / L, ammonia nitrogen ≤ 8mg / L, TN ≤ 15mg / L, TP ≤ 0.5mg / L or GB18918-2002 Level B or higher discharge or reuse water quality).

[0066] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0067] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0068] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CPN multi-pollutant efficient degradation agricultural pollution coordination purification system, characterized by: include: A grid-coordinated integrated unit (1), a water collection and extraction component (2), a liquid source conduction component (3), an air source conduction component (4), a gas-liquid confluence component (5), an aeration and oxygen release component (6), a two-phase medium front position internal circulation component (7), a compressed air source component (8), a rear position sludge external circulation component (9), a bottom solids extraction component (10), a multi-position feeding component (A), and a water-lifting multi-position configuration packing module group (BCD); The grid-coordinated integrated unit (1) comprises: a source-position equalization and lifting unit (11), a front-position biochemical unit (12), a secondary-position biochemical unit (13), a primary-position biochemical unit (14), a mud-liquid separation unit (15), a rear-position interception and filtration strengthening unit (16), and a terminal-position disinfection and sterilization unit (17) connected in sequence; The water collection and extraction component (2) connects the source position equalization and lifting unit (11) with the front position biochemical unit (12); one end of the liquid source conduction component (3) is connected to the pipeline of the secondary position biochemical unit (13), and the other end is connected to the pipeline of the gas source conduction component (4); the junction of the pipelines of the liquid source conduction component (3) and the gas source conduction component (4) is connected to the pipeline of the gas-liquid confluence component (5), and the gas-liquid confluence component (5) is respectively connected to the pipelines of the source position equalization and lifting unit (11), the front position biochemical unit (12), and the secondary position biochemical unit (13); the gas-liquid confluence component (5) is also connected to the pipeline of the aeration and oxygen release component (6), and the aeration and oxygen release component (6) is connected to the pipeline of the main position biochemical unit (14); one end of the two-phase medium front position internal circulation component (7) is respectively connected to the pipelines of the main position biochemical unit (14) and the mud-liquid separation unit (15), and the other end is respectively connected to the source position equalization and lifting unit (11) , the front biochemical unit (12), and the secondary biochemical unit (13) are connected by pipeline; the rear sludge external circulation component (9) connects the mud-liquid separation unit (15) with the front biochemical unit (12); the bottom solid extraction component (10) is respectively connected to the rear interception and filtration reinforcement unit (16) and the end disinfection and sterilization unit (17) through pipelines, and is used to collect and store the bottom solids in the rear interception and filtration reinforcement unit (16) and the end disinfection and sterilization unit (17); one end of the compressed air source component (8) is connected to the gas-liquid confluence component (5) pipeline, and the other end is respectively connected to the rear sludge external circulation component (9) and the bottom solid extraction component (10) pipeline; the compressed air source component (8) is a compressed air source for the water collection extraction component (2), the liquid source conduction component (3), the two-phase medium front internal circulation component (7), the rear sludge external circulation component (9), and the bottom solid extraction component (10); The multi-position feeding component (A) comprises: an external dual-carbon source electron donor (A1), a liquid phosphorus removal dosing component (A2), and a liquid disinfection dosing component (A3); the external dual-carbon source electron donor (A1), the liquid phosphorus removal dosing component (A2), and the liquid disinfection dosing component (A3) are respectively installed on the front biochemical unit (12), the main biochemical unit (14), and the end disinfection and sterilization unit (17); The water-lift multi-position configuration packing module group (BCD) is placed inside the front biochemical unit (12), the secondary biochemical unit (13), the mud-liquid separation unit (15) and the rear interception and filtration strengthening unit (16); The liquid source conducting component (3) comprises: a liquid flushing pump assembly component (31); the liquid flushing pump assembly component (31) is connected to a second water suction pipe component (32) and a second water outlet pipe component (33); the second water suction pipe component (32) is in communication with the secondary biochemical unit (13); an air-water drainage ejector and a control valve are provided on the second water outlet pipe component (33); and the second water outlet pipe component (33) is in communication with the air source conducting component (4); The air source conducting component (4) comprises: an air pump assembly component (41), the air pump assembly component (41) is connected to a first air pipe component (42), a control valve is provided on the first air pipe component (42), the first air pipe component (42) is communicated with a second water outlet pipe component (33), and the junction of the first air pipe component (42) and the second water outlet pipe component (33) is communicated with a gas-liquid confluence component (5); The gas-liquid confluence component (5) comprises: a first connecting pipe part (51), one end of the first connecting pipe part (51) is connected to the junction of the first air pipe part (42) and the second water outlet pipe part (33), and the other end is branched into a second connecting pipe part (52) and a third connecting pipe part (56), the second connecting pipe part (52) is branched into a first branch pipe part (53), a second branch pipe part (54) and a third branch pipe part (55), the first branch pipe part (53) is connected to the bottom of the source position equalization lifting unit (11) and is connected to an E-type configuration, the second branch pipe part (56) is branched into a first branch pipe part (53), a second branch pipe part (54) and a third branch pipe part (55), the first branch pipe part (53) is connected to the bottom of the source position equalization lifting unit (11) and is connected to an E-type configuration, the second branch pipe part (56) is branched into a first branch pipe part (53), a second branch pipe part (54) and a third branch pipe part (55), The first branch pipe part (54) and the third branch pipe part (55) are respectively connected to the bottom of the front biochemical unit (12) and the secondary biochemical unit (13) and are respectively connected to an F-type configuration. The third connecting pipe part (56) is branched with a branch bypass pipe part (57). The third connecting pipe part (56) and the branch bypass pipe part (57) are respectively connected to the aeration and oxygen release component (6). The second connecting pipe part (52), the first branch pipe part (53), the second branch pipe part (54), the third branch pipe part (55), the third connecting pipe part (56) and the branch bypass pipe part (57) are all provided with a control valve. The two-phase medium front internal circulation component (7) includes: an internal circulation pump group component (71), one end of the internal circulation pump group component (71) is connected to a mud-water mixed liquid phase suction pipe component (72) and a clear liquid phase suction pipe component (73), the mud-water mixed liquid phase suction pipe component (72) is connected to the upper rear end of the main biochemical unit (14), the clear liquid phase suction pipe component (73) is connected to the upper front end of the mud-liquid separation unit (15), the mud-water mixed liquid phase suction pipe component (72) and the clear liquid phase suction pipe component (73) are both provided with a control valve, the internal circulation pump group component (71 ) is connected to a multiphase outlet pipe component (74), the multiphase outlet pipe component (74) is branched into a first branch pipe (75), a second branch pipe (76) and a third branch pipe (77), the first branch pipe (75), the second branch pipe (76) and the third branch pipe (77) are respectively connected to the source position equalization lifting unit (11), the front position biochemical unit (12) and the secondary position biochemical unit (13), the multiphase outlet pipe component (74) is provided with an electromagnetic flowmeter element, and the first branch pipe (75), the second branch pipe (76) and the third branch pipe (77) are all provided with a control valve; A mud blocking and flow guiding fitting (15a) is provided at the lower portion of the mud-liquid separation unit (15). The mud blocking and flow guiding fitting (15a) is formed by connecting a plurality of convex surfaces (15a1) and concave surfaces (15a2). A gap (15a3) is provided at the upper top of the convex surface (15a1) and the lower bottom of the concave surface (15a2) to facilitate the sludge and water to fall back through the gap (15a3) and sink to the bottom of the mud-liquid separation unit (15); The water-lifting multi-position configuration filler module group (BCD) includes: an angular water-lifting frame component (B), a filler grid cage component (C) is snap-connected below the angular water-lifting frame component (B), and a plurality of filler core components (D) are filled in the filler grid cage component (C).

2. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 1 is characterized in that: The water collection and extraction component (2) comprises: a water pump assembly component (21); the water pump assembly component (21) is connected to a first water suction pipe component (22) and a first water outlet pipe component (23); the first water suction pipe component (22) is connected to a source-position balancing and lifting unit (11); the first water outlet pipe component (23) is connected to a front-position biochemical unit (12); the first water outlet pipe component (23) is further branched to form a callback water volume component (24); the callback water volume component (24) is connected to the source-position balancing and lifting unit (11); an electromagnetic flowmeter element is provided on the first water outlet pipe component (23); and a control valve is provided on the callback water volume component (24).

3. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 1 is characterized in that: The E-type configuration includes: a first connected short straight pipe section and a second curved diffuser pipe section, wherein the first connected short straight pipe section includes: a first first section pipe section (E11), a first first section pipe section (E12), and a first last section pipe section (E1n); the second curved diffuser pipe section includes: a second first section pipe section (E21), a second second section pipe section (E22), and a second last section pipe section (E2n); one end of the first first section pipe section (E11) is connected to the first branch pipe section (53), and the other end is connected to the second first section pipe section (E21), and the second first section pipe section (E21) is further connected to the first first section pipe section (E12), and the first last section pipe section (E1n) is connected to the second last section pipe section (E2n); a plurality of 3-8 mm outflow holes are opened at intervals of 5-15 cm on both sides symmetrically at the horizontal center of the second curved diffuser pipe section or on both sides symmetrically at an angle of 45 degrees downward.

4. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 1 is characterized in that: The F-type configuration includes: a third connected short straight pipe section and a fourth annular diffuser section, wherein the third connected short straight pipe section includes: a third first section pipe section (F11), a third third section pipe section (F12), and a third last section pipe section (F1n); the fourth annular diffuser section includes: a fourth first section pipe section (F21), a fourth second section pipe section (F22), and a fourth last section pipe section (F2n); one end of the third first section pipe section (F11) is connected to the second branch pipe section (54) or the third branch pipe section (55), and the other end is connected to the fourth first section pipe section (F21), and the fourth first section pipe section (F21) is further connected to the third third section pipe section (F12), and the third last section pipe section (F1n) is connected to the fourth last section pipe section (F2n); the fourth annular diffuser section has a plurality of 3 to 8 mm outflow holes at intervals of 5 to 15 cm on both sides symmetrically about the horizontal pipe center or on both sides symmetrically at an angle of 45 degrees downward.

5. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 1 is characterized in that: The aeration and oxygen release component (6) comprises: an aeration air pump assembly component (61); the aeration air pump assembly component (61) leads to a second air pipe component (62); the second air pipe component (62) branches into a first zonal air pipe portion (63) and a second zonal air pipe portion (65); the first zonal air pipe portion (63) branches into a first pipe portion (64) and a second pipe portion (67); the first pipe portion (64) is connected to the front end bottom of the main biochemical unit (14); the second pipe portion (67) is connected to the third connecting pipe portion (5 6), the second divided air pipe part (65) is connected to the third pipe part (66), the third pipe part (66) is connected to the rear end bottom of the main biochemical unit (14), the bottom end of the first pipe part (64) or the third pipe part (66) is connected to a G-type configuration, the junction of the second divided air pipe part (65) and the third pipe part (66) is connected to the bypass pipe part (57), and the first pipe part (64), the second divided air pipe part (65), the third pipe part (66) and the second pipe part (67) are all provided with control valves.

6. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 5 is characterized in that: The G-type configuration includes: a fifth connecting short straight pipe portion and a sixth full-annular diffuser pipe portion, wherein the fifth connecting short straight pipe portion includes: a fifth first-segment straight pipe portion (G11), a fifth second-segment straight pipe portion (G12), and a fifth last-segment straight pipe portion (G1n); the sixth full-annular diffuser pipe portion includes: a sixth first-segment annular pipe portion (G21), a sixth second-segment annular pipe portion (G22), and a sixth last-segment annular pipe portion (G2n); one end of the fifth first-segment straight pipe portion (G11) is connected to the first pipe portion ( 64) or the third pipe portion (66), the other end is connected to the sixth first section annular pipe portion (G21), the sixth first section annular pipe portion (G21) is further connected to the fifth section straight pipe portion (G12), until the fifth final section straight pipe portion (G1n) is connected to the sixth final section annular pipe portion (G2n); the fifth connecting short straight pipe portion and the sixth full-annular diffuser pipe portion are symmetrically arranged on both sides of the horizontal pipe center or symmetrically arranged at 45 degrees downward, with a spacing of 5 to 15 cm, with a plurality of 3 to 8 mm outflow holes.

7. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 1 is characterized in that: The post-sludge external circulation component (9) includes: an external circulation pump group component (91); the external circulation pump group component (91) is connected to a sedimentation sludge phase suction pipe component (92) and a sludge discharge pipe component (93); the sedimentation sludge phase suction pipe component (92) is connected to the bottom of the mud-liquid separation unit (15) and is connected with an H-type configuration; the sludge discharge pipe component (93) branches into a first delivery pipe (94) and a second delivery pipe (95); the first delivery pipe (94) connects the mud-liquid separation unit (15) with the pre-sludge biochemical unit (12); the second delivery pipe (95) is connected to an external sludge treatment device; the first delivery pipe (94) and the second delivery pipe (95) are both provided with control valves; the first delivery pipe (94) is also provided with an electromagnetic flowmeter element.

8. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 7 is characterized in that: The bottom solids extraction component (10) comprises: an extraction pump component (101); one end of the extraction pump component (101) is connected to a first sub-intake pipe component (102) and a second sub-intake pipe component (103); the first sub-intake pipe component (102) and the second sub-intake pipe component (103) are respectively connected to the bottom of the post-position interception and enhancement unit (16) and the end-position disinfection and sterilization unit (17), and are each connected with an H-shaped configuration; the other end of the extraction pump component (101) is connected to a discharge port pipe component (104); the discharge port pipe component (104) is used to discharge the bottom solids in the post-position interception and enhancement unit (16) and the end-position disinfection and sterilization unit (17); and control valves are provided on the first sub-intake pipe component (102) and the second sub-intake pipe component (103).

9. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 8 is characterized in that: The H-type configuration is arranged in a labyrinthine rotating manner; wherein the head end of the H-type configuration located in the mud-liquid separation unit (15) is connected to the sedimentation sludge phase suction pipe component (92); the head end of the H-type configuration located in the rear interception and filtration enhancement unit (16) is connected to the first branch suction pipe component (102); the head end of the H-type configuration located in the end disinfection and sterilization unit (17) is connected to the second branch suction pipe component (103); a plurality of 3 to 8 mm outflow holes are opened at intervals of 5 to 15 cm on both sides of the horizontal pipe core or on both sides symmetrically inclined at 45 degrees downward.

10. The CPN multi-pollutant efficient agricultural pollution purification system according to claim 8 is characterized in that: The compressed air source component (8) includes: an air compressor component (81), the air compressor component (81) is connected to a first flexible compressed air source pipe component (82) and a second flexible compressed air source pipe component (85), the first flexible compressed air source pipe component (82) branches to a third flexible compressed air source pipe component (84), the third flexible compressed air source pipe component (84) is connected to the bypass pipe part (57), the second flexible compressed air source pipe component (85) branches to a fourth flexible compressed air source pipe component (88), the fourth flexible compressed air source pipe component (88) branches to a fifth flexible compressed air source pipe component (89), the fifth flexible compressed air source pipe component (89) is connected to the bypass pipe part (57), Component (89) branches into a sixth flexible compressed air source pipe component (890) and a seventh flexible compressed air source pipe component (891), the sixth flexible compressed air source pipe component (890) is connected to the sedimentation sludge phase suction pipe component (92), the seventh flexible compressed air source pipe component (891) is respectively connected to the first branch suction pipe component (102) and the second branch suction pipe component (103), the first flexible compressed air source pipe component (82), the third flexible compressed air source pipe component (84), the fifth flexible compressed air source pipe component (89), the sixth flexible compressed air source pipe component (890) and the seventh flexible compressed air source pipe component (891) are all provided with control valves.

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