ABR (Anaerobic Baffled Reactor) sewage treatment device and method integrating biochemical deodorization and efficiency improvement functions

Abstract

The invention discloses an ABR sewage treatment device and method integrating biochemical deodorization and efficiency improvement functions, and relates to the technical field of sewage treatment.The ABR sewage treatment device comprises an ABR reactor assembly which comprises at least two sets of ABR reaction bins and a transfer pool which are sequentially communicated and connected; the backflow and sludge discharge assembly comprises a backflow pipe group, the backflow pipe group is respectively communicated and connected with the at least two groups of ABR reaction bins, the backflow pipe group is communicated with a backflow pump pipe and a sludge discharge pump pipe, the backflow pump pipe is communicated and connected with the transfer pool, the backflow pump pipe is provided with a backflow regulation and control valve, and the sludge discharge pump pipe is provided with a sludge discharge regulation and control valve; the deodorization assembly comprises a deodorization filter material and a deodorization dosing module corresponding to the deodorization filter material, and the deodorization filter material is communicated and connected with the exhaust ends of the two groups of ABR reaction bins. The problems that in the prior art, an ABR for a sewage treatment scene is prone to sludge deposition, is greatly influenced by water impact, is low in treatment efficiency and is high in occupied area and energy consumption are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an ABR sewage treatment device and method integrating biochemical deodorization and efficiency improvement functions. Background Art

[0002] Currently, with the acceleration of urbanization and the development of industrialization, the amount of corresponding sewage generation is also increasing. In existing technologies, anaerobic baffled reactors (ABR reactors) are high-efficiency anaerobic reactors composed of multiple reaction chambers. Each reaction chamber is a relatively independent upflow sludge blanket system. Sewage flows through each reaction chamber in a baffled path from the water inlet, increasing the sewage's reaction time within the system and improving overall reaction efficiency. However, current ABR reactors generally have the following problems: 1) The sewage concentration received by the front-end ABR reaction chamber is high, which causes the ABR reactor as a whole to be greatly impacted by the water quality; 2) The hydraulic stirring effect of water flowing through each reaction chamber is poor, and sludge is easily deposited at the bottom of each reaction chamber, affecting the overall treatment effect of the ABR reactor; 3) The odor generated by the ABR reactor components during the reaction process requires the installation of an independent deodorization device or biogas ignition device, which results in high overall construction and operation costs.

[0003] In addition, a Chinese patent with publication number CN 206273787 U discloses a sewage treatment device based on the ABR process, which includes a pulse water distributor, an ABR reaction chamber, a delivery pipe, a water distribution pipe, and a baffle. The delivery pipe is connected to the water distribution pipe through the pulse water distributor, and then connected to the ABR reaction chamber. The baffle is arranged inside the ABR reaction chamber at intervals, extending from the top to the bottom of the ABR reaction chamber, isolating the ABR reaction chamber into an upward flow chamber and a downward flow chamber connected in series, forming a drainage channel with circuitous communication between the upper and lower baffles. The invention is provided with a pulse water distributor, which is divided into four branches from the water inlet and enters the four ABR reaction chambers, and pulse water is distributed to each reaction chamber. However, the device still uses a pulse water distribution method for each reaction chamber, which further increases the concentration of pollutants in the rear-end reaction chamber, affects the overall treatment effect of the ABR reactor, and still requires an additional deodorization device to treat the odor generated by the system. Summary of the Invention

[0004] To this end, the present invention provides an ABR sewage treatment device and method with integrated biochemical deodorization and efficiency improvement functions to solve the technical problems of ABR reactors for sewage treatment scenarios in the prior art, such as easy sludge deposition, great impact from water quality shock, low treatment efficiency, high floor space and energy consumption.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: An ABR sewage treatment device integrating biochemical deodorization and efficiency improvement functions, comprising: The ABR reactor assembly includes at least two groups of ABR reaction chambers and at least one transfer tank connected in sequence; The reflux and mud discharge assembly includes a reflux pipe group, one end of which is connected to at least two groups of the ABR reaction chambers, and the other end of which is connected to a reflux pump pipe and a mud discharge pump pipe, respectively. The reflux pump pipe is connected to the transfer tank, and the reflux pump pipe is equipped with a reflux control valve, and the mud discharge pump pipe is equipped with a mud discharge control valve. The deodorizing component includes a deodorizing filter material and a deodorizing dosing module for adding a medicament to the deodorizing filter material. The deodorizing filter material is connected to the exhaust ends of at least two groups of the ABR reaction chambers.

[0006] On the basis of the above technical solution, the present invention is further described as follows: As a further embodiment of the present invention, The ABR reactor assembly includes a first ABR reaction chamber, a second ABR reaction chamber, a third ABR reaction chamber, a fourth ABR reaction chamber and a transfer tank that are sequentially assembled and arranged; The first ABR reaction chamber is connected to a water inlet pipe for receiving sewage, and the outlet end of the water inlet pipe 17 extends to the bottom of the first ABR reaction chamber; The second ABR reaction chamber and the transfer tank are connected in sequence through a water pipe group; The water pipe group includes a first water pipe, a second water pipe, a third water pipe and a fourth water pipe; The first water pass pipe is connected between the second ABR reaction chamber and the first ABR reaction chamber, the second water pass pipe is connected between the third ABR reaction chamber and the second ABR reaction chamber, the third water pass pipe is connected between the fourth ABR reaction chamber and the third ABR reaction chamber, and the fourth water pass pipe is connected between the transfer tank and the fourth ABR reaction chamber. The outlet ends of the first water pass pipe, the second water pass pipe, and the third water pass pipe extend to the bottoms of the second, third, and fourth ABR reaction chambers, respectively.

[0007] As a further embodiment of the present invention, The first ABR reaction tank, the second ABR reaction tank, the third ABR reaction tank and the fourth ABR reaction tank are all suspended with tank fillers; The silo filler is configured as a flexible silo filler, and microorganisms capable of degrading pollutants are attached to the silo filler; The water inlet end of the first water pipe, the water inlet end of the second water pipe, the water inlet end of the third water pipe and the water inlet end of the fourth water pipe are all located above the silo filler.

[0008] As a further embodiment of the present invention, The reflux pipe group includes a first reflux pipe, a second reflux pipe, a third reflux pipe and a fourth reflux pipe; The reflux pump pipe includes a reflux main pipe and a reflux water pump; The mud discharge pump pipe includes a mud discharge pipe and a mud discharge pump; One end of each of the first return pipe, the second return pipe, the third return pipe, and the fourth return pipe extends to the bottom of each of the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber, respectively, and the other end of each of the first return pipe, the second return pipe, the third return pipe, and the fourth return pipe is connected to the main return pipe and the sludge discharge pipe respectively. The water inlet end of the reflux main pipe extends to the bottom of the transfer tank, and the water inlet end of the reflux main pipe is connected to a reflux water pump; The mud discharge pipe is equipped with a mud discharge pump at an upstream position of the mud discharge path corresponding to the mud discharge end thereof; The reflux regulating valve is installed on the reflux main pipe; The mud discharge regulating valve is assembled and arranged on the mud discharge pipe.

[0009] As a further embodiment of the present invention, The reflux and mud discharge assembly also includes a control valve group; The control valve group includes a first control valve, a second control valve, a third control valve and a fourth control valve; The first control valve, the second control valve, the third control valve and the fourth control valve are respectively installed in the first return pipe, the second return pipe, the third return pipe and the fourth return pipe, and are used to adjust the flow rate of each return pipe by regulating the opening of each control valve.

[0010] As a further embodiment of the present invention, The deodorizing assembly further includes an air distribution module and an odor exhaust inlet pipe; The air distribution modules are provided in several groups, and the several groups of air distribution modules are all configured as tunnel-type shells located above each reaction chamber. Two adjacent groups of air distribution modules are connected by sockets, and the air distribution modules with socket connections are connected to a plurality of odor exhaust pipes at both ends thereof through the openings of the head; The upper part of the partition between the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber and the fourth ABR reaction chamber is provided with a ventilation channel; The air distribution module is connected to at least one group of ABR reaction chambers via a plurality of the odor exhaust inlet pipes, and the gas in each ABR reaction chamber is transferred to the air distribution module via the odor exhaust inlet pipes; The deodorizing filter material is positioned and laid on the upper part of the air distribution module, and a plurality of gas diffusion holes communicating with the deodorizing filter material are opened on the semicircular shell corresponding to the top side of the air distribution module.

[0011] As a further embodiment of the present invention, The deodorizing component also includes a green plant layer, an air extraction duct and a wind energy blower; The green plant layer is arranged on top of the deodorizing filter material, and the green plant layer can absorb the carbon dioxide formed by degradation and form an ecological interception layer; The air extraction pipes are provided with a plurality of them, and the plurality of the air extraction pipes are respectively vertically plugged into the interior of the deodorizing filter material, and the tops of the plurality of the air extraction pipes are equipped with wind energy fans.

[0012] As a further embodiment of the present invention, The deodorizing assembly further includes a deodorizing overflow pipe; The outlet end of the deodorizing overflow pipe is connected to the top of the first ABR reaction chamber, and the inlet end of the deodorizing overflow pipe is connected to the deodorizing filter material; The deodorizing overflow pipe is configured as a sieve tube and / or a sieve barrel.

[0013] An ABR sewage treatment method of the ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions specifically comprises the following steps: The sewage enters the ABR reactor assembly through the front lift pump and continues to flow into the bottom of the first ABR reaction chamber. The sewage flowing through the first, second, third and fourth ABR reaction chambers all enters the bottom and exits the top through the water pipe group. During the top and exit process, the sewage passes through the chamber filler from bottom to top and fully reacts with the microorganisms attached to the chamber filler. At the same time, the chamber filler prevents the sludge from flowing into the next reaction chamber. During the sewage return mixing process, the return control valve is controlled to open while the sludge discharge control valve is closed. The return water pump draws the treated water from the transfer tank through the first to fourth return pipes into the bottom of the first to fourth ABR reaction tanks respectively, and adjusts the amount of water entering the first to fourth ABR reaction tanks through the first to fourth control valves. At this time, the return water body cooperates with the forward flow water body to hydraulically stir each ABR reaction tank, so that the bottom sludge is suspended in the reaction tank, the sewage and sludge are more fully contacted, and the pool capacity utilization rate is improved. At the same time, the treated water from the transfer tank is used to dilute the ABR reaction tank inlet water, thereby enhancing the system's shock resistance. When the sludge discharge process is in progress, the reflux control valve is closed while the sludge discharge control valve is opened. The sludge discharge pump discharges the sludge from each ABR reaction chamber into the system through the first to fourth reflux pipes. Since the sludge concentration in the front-end ABR reaction chamber should be higher than that in the rear-end ABR reaction chamber, the opening of the first to fourth control valves is adjusted to control the sludge discharge from different ABR reaction chambers at the same time and evenly. Connect the spray pipe on the top of the deodorizing filter material to the deodorizing dosing module. The medicine inside the deodorizing dosing module is selected as plant liquid. The medicine is pumped into the spray pipe through the dosing pump. The spray head atomizes the medicine and evenly sprays the deodorizing filter material to keep the deodorizing filter material moist. The odor inside the ABR reactor assembly enters the air distribution module through the odor exhaust inlet pipe, and enters the deodorization filter material through the gas diffusion hole on the top of the air distribution module and is intercepted by the deodorization filter material.

[0014] At this time, under the action of external natural wind, the wind fan blades rotate automatically, and the odor is extracted from the air distribution module. The odor is adsorbed by the deodorizing filter material wetted by the deodorizing agent, and then the microorganisms attached to the surface of the deodorizing filter material degrade the odor. At the same time, the odor reacts chemically with the deodorizing agent, causing the chemical composition of the odor to change and eliminate the odor; the carbon dioxide produced by the degradation of the odor by microorganisms is adsorbed by the green plant layer on the top of the deodorizing filter material, achieving low-carbon emissions. At the same time, the top green plant layer can form an ecological interception layer to prevent the odor from overflowing, forming a double guarantee. The purified gas is extracted through the air duct under the action of the wind fan.

[0015] As a further solution of the present invention, the following steps are also included: The deodorization overflow pipe located at the top of the first ABR reaction chamber discharges the excess liquid medicine and rainwater in the deodorization filter material back to the ABR reaction chamber at the front end of the ABR reactor assembly, so that the excess liquid medicine, rainwater and the received sewage are simultaneously processed and utilized by the ABR reactor assembly.

[0016] The present invention has the following beneficial effects: 1. The present invention uses the water after terminal treatment for reflux stirring. The stirring intensity of different reaction chambers can be adjusted by the control valve to prevent sludge deposition, improve the utilization rate of the tank capacity, and at the same time dilute the pollutant concentration of the ABR reactor component influent, improve the system's impact resistance, and reduce the cost of pH adjustment.

[0017] 2. The system's sludge discharge and reflux mixing share a set of pipelines, which simplifies the internal pipelines of the equipment. By adjusting the control valve, the reaction chambers with different sludge concentrations can discharge sludge at the same time, which is convenient for operation and maintenance and has low construction and operation costs.

[0018] 3. The deodorizing filter material of the present invention utilizes biological deodorization and chemical deodorization, and green plants are planted on the top of the deodorizing filter material to form multiple protections, significantly enhance the deodorizing effect, and prevent odor from overflowing.

[0019] 4. The soil layer on the top of the device serves as a deodorizing component, saving floor space and beautifying the landscape.

[0020] 5. The deodorizing component of the present invention adopts a wind-powered blower, which utilizes the external wind force and the temperature difference between the inside and outside of the air duct to make the wind-powered blower rotate and draw the odor into the deodorizing component, while the purified gas is drawn out of the system.

[0021] 6. The present invention requires less electromechanical equipment, has low operating costs and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0023] Figure 1 This is a schematic diagram of the overall main structure of an ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions provided by an embodiment of the present invention.

[0024] Figure 2 The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions provided in the embodiment of the present invention corresponds to a top view structural schematic diagram of an ABR reactor assembly.

[0025] Figure 3 The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions provided in the embodiment of the present invention corresponds to a schematic diagram of the top view of the deodorization component.

[0026] Figure 4Schematic diagram of the air distribution module structure in the ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions provided by an embodiment of the present invention.

[0027] Figure 5 Schematic diagram of the deodorization overflow pipe structure in an ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions provided by an embodiment of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows: ABR reactor assembly 1: first ABR reactor chamber 11, second ABR reactor chamber 12, third ABR reactor chamber 13, fourth ABR reactor chamber 14, transfer tank 15, chamber filler 16, water inlet pipe 17, water pipe assembly 18, first water pipe 18a, second water pipe 18b, third water pipe 18c, fourth water pipe 18d, and water outlet pipe 19; Reflux and mud discharge assembly 2: reflux pipe group 21, first reflux pipe 21a, second reflux pipe 21b, third reflux pipe 21c, fourth reflux pipe 21d, reflux main pipe 22, reflux water pump 23, mud discharge pipe 24, mud discharge pump 25, reflux regulating valve 26, mud discharge regulating valve 27, control valve group 28, first control valve 28a, second control valve 28b, third control valve 28c, fourth control valve 28d; Deodorizing component 3: air distribution module 31, gas diffusion hole 311, deodorizing inlet pipe 32, deodorizing filter material 33, green plant layer 34, air extraction pipe 35, wind power blower 36, deodorizing dosing module 37, spray pipe 38, spray head 381, deodorizing overflow pipe 39; Repair well assembly 4. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0030] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the present invention without substantially changing the technical content.

[0031] like Figures 1 to 5As shown, the embodiment of the present invention provides an ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions, including an ABR reactor component 1, a return and sludge discharge component 2, a deodorization component 3 and a maintenance well component 4, which is used to effectively serve as the process basis for the established anaerobic baffled sewage treatment through the ABR reactor component 1. At the same time, the return and sludge discharge component 2 can be used to further realize the sewage return stirring function corresponding to the ABR reactor component 1, so as to effectively reduce the sludge deposition inside the ABR reactor component 1, and can be flexibly switched to realize the sludge discharge function according to demand, thereby improving the continuous operation stability of the device. In addition, the deodorization component 3 can be used to effectively coordinate the biochemical process to treat odor, without the need for additional independent deodorization devices, and the biochemical process can act synchronously on the sewage treatment path of the ABR reactor component 1, thereby significantly improving the overall sewage treatment effect, and the overall low consumption, environmental protection and easy maintenance. The specific settings are as follows: Please refer to Figure 1 The ABR reactor assembly 1 includes a first ABR reaction chamber 11, a second ABR reaction chamber 12, a third ABR reaction chamber 13, a fourth ABR reaction chamber 14 and a transfer tank 15, which are sequentially assembled and arranged. The first ABR reaction chamber 11 is connected to a water inlet pipe 17 for receiving sewage, and the outlet end of the water inlet pipe 17 extends to the bottom of the first ABR reaction chamber 11. The second ABR reaction chamber 12 and the transfer tank 15 are sequentially connected through a water pipe group 18.

[0032] Specifically, the water pipe group 18 includes a first water pipe 18a, a second water pipe 18b, a third water pipe 18c, and a fourth water pipe 18d. The first water pipe 18a is connected between the second ABR reaction chamber 12 and the first ABR reaction chamber 11, the second water pipe 18b is connected between the third ABR reaction chamber 13 and the second ABR reaction chamber 12, the third water pipe 18c is connected between the fourth ABR reaction chamber 14 and the third ABR reaction chamber 13, and the fourth water pipe 18d is connected between the transfer tank 15 and the fourth ABR reaction chamber 14. The outlet ends of the first water pipe 18a, the second water pipe 18b, and the third water pipe 18c extend to the bottoms of the second ABR reaction chamber 12, the third ABR reaction chamber 13, and the fourth ABR reaction chamber 14, respectively.

[0033] A silo filler 16 is suspended inside each of the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13, and the fourth ABR reaction chamber 14. The silo filler 16 is preferably a flexible silo filler such as an elastic silo filler and / or a composite silo filler, and microorganisms are attached to the silo filler 16. The water inlet ends of the first water pipe 18a, the second water pipe 18b, the third water pipe 18c, and the fourth water pipe 18d are all located above the silo filler 16, so that the treated sewage of each reaction chamber enters from the bottom and exits from the top, which can effectively reduce dead corners in the reaction chambers and improve tank capacity utilization. At the same time, the treated sewage can pass through the silo filler 16 from bottom to top and fully react with the microorganisms attached to the silo filler 16, further improving the sewage treatment effect. In addition, the silo filler 16 can also effectively prevent sludge from flowing into the next silo.

[0034] The transfer tank 15 is also connected to an outlet pipe 19. The outlet pipe 19 corresponds to the discharge height of the transfer tank 15 being higher than the water inlet height of the fourth water pipe 18d, so that a predetermined amount of treated water can be accumulated inside the transfer tank 15 as the basis for the subsequent reflux stirring function.

[0035] Please refer to Figure 1 and Figure 2 The return and mud discharge assembly 2 includes a return pipe group 21, a return main pipe 22, a return water pump 23, a mud discharge pipe 24, a mud discharge pump 25, a return control valve 26, a mud discharge control valve 27 and a control valve group 28; wherein, the return pipe group 21 includes a first return pipe 21a, a second return pipe 21b, a third return pipe 21c and a fourth return pipe 21d, the first return pipe 21a, the second return pipe 21b, the third return pipe 21c and the fourth return pipe One end of each of the first return pipe 21a, the second return pipe 21b, the third return pipe 21c and the fourth return pipe 21d extends to the bottom of the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13 and the fourth ABR reaction chamber 14 respectively, and the other ends of the first return pipe 21a, the second return pipe 21b, the third return pipe 21c and the fourth return pipe 21d are connected to the main return pipe and are respectively connected to the return main pipe 22 and the mud discharge pipe 24.

[0036] The water inlet end of the reflux main pipe 22 extends to the bottom of the transfer tank 15, and the water inlet end of the reflux main pipe 22 is connected to a reflux water pump 23; the mud discharge pipe 24 is equipped with a mud discharge pump 25 at the upstream position of the mud discharge path corresponding to the mud discharge end thereof; the reflux regulating valve 26 is equipped on the reflux main pipe 22, and the mud discharge regulating valve 27 is equipped on the mud discharge pipe 24; the reflux regulating valve 26 and the mud discharge regulating valve 27 are switched on and off to effectively return the treated water accumulated in the transfer tank 15 to each reaction chamber to complete the sewage treatment. The water reflux stirring function allows the sludge at the bottom of each reaction chamber to be suspended in the reaction chamber, which is conducive to more complete contact between sewage and sludge and improves the utilization rate of the tank capacity. At the same time, the sewage from the transfer tank 15 flows back into each ABR reaction chamber, which can dilute the water inlet of each ABR reaction chamber and enhance the system's impact resistance. In addition, it can also switch to the sludge discharge function as needed to actively extract the deposited sludge inside each reaction chamber. The overall reflux stirring and sludge discharge functions share a set of reflux pipe systems, which simplifies the internal pipes of the equipment, reduces costs, facilitates operation, and improves the continuous operation stability of the device.

[0037] Please continue to refer to Figure 2 The control valve group 28 includes a first control valve 28a, a second control valve 28b, a third control valve 28c and a fourth control valve 28d. The first control valve 28a, the second control valve 28b, the third control valve 28c and the fourth control valve 28d are respectively installed in the first return pipe 21a, the second return pipe 21b, the third return pipe 21c and the fourth return pipe 21d in a one-to-one correspondence, so as to flexibly adjust the valve opening according to the stepped sludge amount of each reaction chamber. When the sludge concentration in the front-end ABR reaction chamber should be higher than that in the rear-end ABR reaction chamber, by adjusting the opening of each control valve, it is possible to control the sludge discharge of different ABR reaction chambers at the same time and evenly, thereby improving the overall functional adaptability.

[0038] As a preferred solution of this embodiment, the first reflux pipe 21a, the second reflux pipe 21b, the third reflux pipe 21c and the fourth reflux pipe 21d are connected to the bottom of each reaction chamber with a reducing tee pipe, so as to significantly improve the anti-blocking adaptability of reflux and sludge discharge through the reducing tee pipe.

[0039] Please refer to Figure 1 、 Figures 3 to 5, the deodorization component 3 is correspondingly arranged above the ABR reactor component 1; specifically, the deodorization component 3 includes an air distribution module 31, an exhaust inlet pipe 32, a deodorization filter material 33, a green plant layer 34, an extraction air pipe 35, a wind energy fan 36, a deodorization chemical addition module 37 and a spray pipe 38; among them, several groups of the air distribution module 31 are provided, and several groups of the air distribution module 31 are all arranged as tunnel-shaped shells above each reaction chamber, and the adjacent two groups of the air distribution module 31 are connected by socket connection, and several exhaust inlet pipes 32 are connected through openings in the heads corresponding to the two ends of the whole socket-connected air distribution module 31; air permeable channels are opened in the upper parts of the partitions between the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13 and the fourth ABR reaction chamber 14 to realize the overall circulation of the gas inside each reaction chamber; the air distribution module 31 is connected to at least one group of ABR reaction chambers through several exhaust inlet pipes 32, so that the gas in each ABR reaction chamber is transmitted to the air distribution module 31 through the exhaust inlet pipe 32.

[0040] A number of gas diffusion holes 311 are opened in the semicircular shell on the top side of the air distribution module 31, and a deodorization filter material 33 is laid on the upper part of the air distribution module 31 for positioning, so that the odor in the air distribution module 31 can be further conducted to the position of the deodorization filter material 33 through the gas diffusion holes 311 and can be effectively intercepted and adsorbed by the deodorization filter material 33, and then the odor is degraded by the microorganisms attached to the surface of the deodorization filter material 33.

[0041] The output end of the deodorization chemical addition module 37 is connected with a spray pipe 38. The spray pipe 38 is arranged in a "rich" or "day" shape above the deodorization filter material 33, and the spray pipe 38 is provided with a number of spray heads 381 facing the deodorization filter material 33, so as to pump the chemical agent into the spray pipe 38 through the chemical addition pump by the deodorization chemical addition module 37, and further use the spray heads 381 to atomize and uniformly spray the chemical agent onto the deodorization filter material 33 to keep the deodorization filter material 33 in a wet state, so as to realize that when the microorganisms degrade the odor, a chemical reaction can be synchronously carried out with the deodorization chemical agent, so that the chemical composition of the odor is changed to eliminate the odor.

[0042] The deodorization filter material 33 is preferably mainly composed of humus soil and is internally mixed with components such as wood chips, pine bark, activated carbon, etc., so as to effectively increase the porosity of the deodorization filter material layer through the blocks such as wood chips and pine bark, thereby enhancing the contact area between the gas and the deodorization filter material; a green plant layer 34 is arranged on the top of the deodorization filter material 33. The green plant layer 34 is preferably emergent aquatic plants such as canna indica and thalia dealbata, so that the carbon dioxide generated by the microbial degradation of the odor can be further adsorbed by the green plant layer 34 on the top of the deodorization filter material 33, thereby realizing low-carbon emission. At the same time, the top green plant layer 34 forms an ecological interception layer, which can further prevent the odor from overflowing, forming a double guarantee.

[0043] The extraction pipes 35 are provided with a plurality of them, and the plurality of the extraction pipes 35 are respectively vertically plugged into the interior of the deodorizing filter material 33, and the tops of the plurality of the extraction pipes 35 are equipped with wind fans 36, so that the purified gas is extracted through the extraction pipes 35 under the action of the wind fans, so that the blades of the wind fans 36 automatically rotate under the action of external natural wind, thereby extracting the purified gas through the extraction pipes 35 under the action of the wind fans 36, thereby improving the functional practicality.

[0044] As another preferred solution of this embodiment, please refer to Figure 1 and Figure 5 The deodorizing assembly 3 further includes a deodorizing overflow pipe 39. The outlet end of the deodorizing overflow pipe 39 is connected to the top of the first ABR reaction chamber 11, and the inlet end of the deodorizing overflow pipe 39 is correspondingly connected to the deodorizing filter material 33. The deodorizing overflow pipe 39 is preferably a sieve tube and / or a sieve barrel, which is used to discharge the excess liquid medicine and rainwater in the deodorizing filter material 33 back to the reaction chamber at the front end of the ABR reactor assembly 1 through the deodorizing overflow pipe 39, so that the excess liquid medicine and rainwater can be treated and utilized by the ABR reactor assembly 1 simultaneously with the received sewage.

[0045] Please continue to refer to Figure 1 The top of the transfer pool 15 is covered with soil, and a corresponding maintenance well assembly 4 is provided to facilitate daily maintenance of each assembly and improve functional practicality.

[0046] It should be noted that the above-mentioned ABR sewage treatment device also includes an electronic control structure, which includes a power supply module and a control module connected by a circuit. The control module can be selected from but not limited to a single-chip microcomputer control board of model AT80C51 and a microcontroller of model STM32; the control output end of the control module is connected to the input end of the relay through a circuit, and the output end of the relay is respectively connected to the reflux water pump 23, sludge pump 25, reflux control valve 26, sludge control valve 27 and control valve group 28 in the reflux and sludge discharge component 2 and the deodorization and dosing module 37 in the deodorization component 3 through a circuit, and the control input end of the control module is connected to the control panel through a circuit.

[0047] The embodiment of the present invention further provides an ABR sewage treatment method according to the above-mentioned ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions, which specifically includes the following steps: First, the sewage enters the ABR reactor assembly 1 through the front lift pump and continues to flow into the bottom position of the first ABR reaction chamber 11. The sewage flowing through the first ABR reaction chamber 11, the second ABR reaction chamber 12, the third ABR reaction chamber 13 and the fourth ABR reaction chamber 14 all enter the water from the bottom and exit the water from the top through the water pipe group 18. During the water discharge process, the sewage passes through the silo filler 16 from bottom to top and fully reacts with the microorganisms attached to the silo filler 16. At the same time, the silo filler 16 prevents the sludge from flowing into the next silo.

[0048] During the sewage return and stirring process, the return control valve 26 is controlled to be open while the sludge discharge control valve 27 is closed. The return water pump 23 draws the treated water from the transfer tank 15 into the bottom of the first to fourth ABR reaction chambers 11 to 14 respectively through the first to fourth return pipes 21a to 21d, and the amount of water entering the first to fourth ABR reaction chambers 11 to 14 is adjusted by the first to fourth control valves 28a to 28d. At this time, the return water body cooperates with the forward flow water body to hydraulically stir each ABR reaction chamber, so that the bottom sludge is suspended in the reaction chamber, the sewage and sludge are more fully contacted, and the tank capacity utilization rate is improved. At the same time, the treated water from the transfer tank 15 is used to dilute the ABR reaction chamber inlet water, thereby enhancing the system's shock resistance.

[0049] During the sludge discharge process, the reflux regulating valve 26 is closed while the sludge discharge regulating valve 27 is opened. The sludge discharge pump 25 discharges the sludge from each ABR reaction chamber into the system through the first to fourth reflux pipes 21a to 21d. Since the sludge concentration in the front-end ABR reaction chamber should be higher than that in the rear-end ABR reaction chamber, the openings of the first to fourth control valves 28a to 28d are adjusted to control the sludge discharge from different ABR reaction chambers simultaneously and evenly.

[0050] The spray pipe 38 provided on the top of the deodorizing filter material 33 is connected to the deodorizing dosing module 37. The medicine inside the deodorizing dosing module 37 is preferably plant liquid. The medicine is pumped into the spray pipe 38 through the dosing pump. The spray head 381 atomizes the medicine and evenly sprays the deodorizing filter material 33 to keep the deodorizing filter material 33 moist.

[0051] Odors inside the ABR reactor assembly enter the gas distribution module 31 through the odor exhaust inlet pipe 32 , and enter the deodorizing filter material 33 through the gas diffusion holes 311 at the top of the gas distribution module 31 , and are intercepted by the deodorizing filter material 33 .

[0052] At this time, under the action of external natural wind, the blades of the wind fan 36 rotate automatically, extracting the odor from the air distribution module 31. The odor is adsorbed by the deodorizing filter material 33 wetted with the deodorizing agent. Then, the microorganisms attached to the surface of the deodorizing filter material 33 degrade the odor. At the same time, the odor reacts chemically with the deodorizing agent, causing the chemical composition of the odor to change, thereby eliminating the odor.

[0053] The carbon dioxide produced by the degradation of odor by microorganisms is adsorbed by the green plant layer 34 on the top of the deodorizing filter material 33, thereby achieving low-carbon emissions. At the same time, the top green plant layer 34 can form an ecological interception layer to prevent the odor from overflowing, forming a double protection. The purified gas is extracted through the air extraction pipe 35 under the action of the wind fan 36.

[0054] The deodorization overflow pipe 39 located at the top of the first ABR reaction chamber 11 returns the excess liquid medicine and rainwater in the deodorization filter material 33 to the ABR reaction chamber at the front end of the ABR reactor assembly 1, so that the excess liquid medicine, rainwater and the incoming sewage are simultaneously processed and utilized by the ABR reactor assembly 1.

[0055] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. An ABR sewage treatment plant integrating biochemical deodorization and efficiency improvement functions, characterized in that: include: The ABR reactor assembly includes at least two groups of ABR reaction chambers and at least one group of transfer tanks that are sequentially connected; The reflux and mud discharge assembly includes a reflux pipe group, one end of which is connected to at least two groups of the ABR reaction chambers, and the other end of which is connected to a reflux pump pipe and a mud discharge pump pipe, respectively. The reflux pump pipe is connected to the transfer tank, and the reflux pump pipe is provided with a reflux control valve, and the mud discharge pump pipe is provided with a mud discharge control valve; The deodorizing component includes a deodorizing filter material and a deodorizing dosing module for adding a medicament to the deodorizing filter material. The deodorizing filter material is connected to the exhaust ends of at least two groups of the ABR reaction chambers.

2. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 1 is characterized in that: The ABR reactor assembly includes a first ABR reaction chamber, a second ABR reaction chamber, a third ABR reaction chamber, a fourth ABR reaction chamber and a transfer tank that are sequentially assembled and arranged; The first ABR reaction chamber is connected to a water inlet pipe for receiving sewage, and the outlet end of the water inlet pipe extends to the bottom of the first ABR reaction chamber; The second ABR reaction chamber and the transfer tank are connected in sequence through a water pipe group; The water pipe group includes a first water pipe, a second water pipe, a third water pipe and a fourth water pipe; The first water pass pipe is connected between the second ABR reaction chamber and the first ABR reaction chamber, the second water pass pipe is connected between the third ABR reaction chamber and the second ABR reaction chamber, the third water pass pipe is connected between the fourth ABR reaction chamber and the third ABR reaction chamber, and the fourth water pass pipe is connected between the transfer tank and the fourth ABR reaction chamber. The outlet ends of the first water pass pipe, the second water pass pipe, and the third water pass pipe extend to the bottoms of the second, third, and fourth ABR reaction chambers, respectively.

3. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 2 is characterized in that: The first ABR reaction tank, the second ABR reaction tank, the third ABR reaction tank and the fourth ABR reaction tank are all suspended with tank fillers; The silo filler is configured as a flexible silo filler, and microorganisms capable of degrading pollutants are attached to the silo filler; The water inlet end of the first water pipe, the water inlet end of the second water pipe, the water inlet end of the third water pipe and the water inlet end of the fourth water pipe are all located above the silo filler.

4. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 2 is characterized in that: The reflux pipe group includes a first reflux pipe, a second reflux pipe, a third reflux pipe and a fourth reflux pipe; The reflux pump pipe includes a reflux main pipe and a reflux water pump; The mud discharge pump pipe includes a mud discharge pipe and a mud discharge pump; One end of each of the first return pipe, the second return pipe, the third return pipe, and the fourth return pipe extends to the bottom of each of the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber, and the fourth ABR reaction chamber, respectively, and the other end of each of the first return pipe, the second return pipe, the third return pipe, and the fourth return pipe is connected to the main return pipe and the sludge discharge pipe respectively. The water inlet end of the reflux main pipe extends to the bottom of the transfer tank, and the water inlet end of the reflux main pipe is connected to a reflux water pump; The mud discharge pipe is equipped with a mud discharge pump at an upstream position of the mud discharge path corresponding to the mud discharge end thereof; The reflux regulating valve is installed on the reflux main pipe; The mud discharge regulating valve is assembled and arranged on the mud discharge pipe.

5. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 4 is characterized in that: The reflux and mud discharge assembly also includes a control valve group; The control valve group includes a first control valve, a second control valve, a third control valve and a fourth control valve; The first control valve, the second control valve, the third control valve and the fourth control valve are respectively installed in the first return pipe, the second return pipe, the third return pipe and the fourth return pipe, and are used to adjust the flow rate of each return pipe by regulating the opening of each control valve.

6. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 2 is characterized in that: The deodorizing assembly further includes an air distribution module and an odor exhaust inlet pipe; The air distribution modules are provided in several groups, and the several groups of air distribution modules are all configured as tunnel-type shells located above each reaction chamber. Two adjacent groups of air distribution modules are connected by sockets, and the air distribution modules with socket connections are connected to a plurality of odor exhaust pipes at both ends thereof through the openings of the head; The upper part of the partition between the first ABR reaction chamber, the second ABR reaction chamber, the third ABR reaction chamber and the fourth ABR reaction chamber is provided with a ventilation channel; The air distribution module is connected to at least one group of ABR reaction chambers via a plurality of the odor exhaust inlet pipes, and the gas in each ABR reaction chamber is transferred to the air distribution module via the odor exhaust inlet pipes; The deodorizing filter material is positioned and laid on the upper part of the air distribution module, and a plurality of gas diffusion holes communicating with the deodorizing filter material are opened on the semicircular shell corresponding to the top side of the air distribution module.

7. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 6 is characterized in that: The deodorizing component also includes a green plant layer, an air extraction duct and a wind energy blower; The green plant layer is arranged on top of the deodorizing filter material, and the green plant layer can absorb the carbon dioxide formed by degradation and form an ecological interception layer; The air extraction pipes are provided with a plurality of them, and the plurality of the air extraction pipes are respectively vertically plugged into the interior of the deodorizing filter material, and the tops of the plurality of the air extraction pipes are equipped with wind energy fans.

8. The ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions according to claim 7 is characterized in that: The deodorizing assembly further includes a deodorizing overflow pipe; The outlet end of the deodorizing overflow pipe is connected to the top of the first ABR reaction chamber, and the inlet end of the deodorizing overflow pipe is connected to the deodorizing filter material; The deodorizing overflow pipe is configured as a sieve tube and / or a sieve barrel.

9. An ABR sewage treatment method according to the ABR sewage treatment device with integrated biochemical deodorization and efficiency improvement functions as claimed in claim 8, characterized in that: The specific steps include: The sewage enters the ABR reactor assembly through the front lift pump and continues to flow into the bottom of the first ABR reaction chamber. The sewage flowing through the first, second, third and fourth ABR reaction chambers all enters the bottom and exits the top through the water pipe group. During the top and exit process, the sewage passes through the chamber filler from bottom to top and fully reacts with the microorganisms attached to the chamber filler. When the sewage reflux mixing process is in progress, the reflux control valve is controlled to be open while the sludge control valve is closed. The reflux water pump draws the treated water from the transfer tank through the first reflux pipe to the fourth reflux pipe into the bottom of the first ABR reaction tank to the fourth ABR reaction tank respectively, and adjusts the water volume entering the first ABR reaction tank to the fourth ABR reaction tank through the first control valve to the fourth control valve; When the sludge discharge process is in progress, the reflux control valve is controlled to be closed while the sludge discharge control valve is opened, and the sludge discharge pump discharges the sludge from each ABR reaction chamber into the system through the first reflux pipe to the fourth reflux pipe; Connect the spray pipe on the top of the deodorizing filter material to the deodorizing dosing module. The medicine inside the deodorizing dosing module is selected as plant liquid. The medicine is pumped into the spray pipe through the dosing pump. The spray head atomizes the medicine and evenly sprays the deodorizing filter material. The odor inside the ABR reactor assembly enters the air distribution module through the odor exhaust inlet pipe, and enters the deodorization filter material through the gas diffusion hole on the top of the air distribution module and is intercepted by the deodorization filter material.

10. The ABR sewage treatment method according to claim 9, characterized in that: The following steps are also included: The deodorization overflow pipe located at the top of the first ABR reaction chamber discharges the excess liquid medicine and rainwater in the deodorization filter material back to the ABR reaction chamber at the front end of the ABR reactor assembly, so that the excess liquid medicine, rainwater and the received sewage are simultaneously processed and utilized by the ABR reactor assembly.

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