Low-energy-consumption integrated sewage treatment system suitable for rural areas

Abstract

The invention relates to the technical field of sewage treatment, in particular to a low-energy-consumption integrated sewage treatment system suitable for rural areas, comprising a sewage purification area which is divided into an adsorption buffer area, a primary settling area, an organic pollutant conversion area, a secondary settling area and a disinfection area in sequence by a plurality of partition plates, a water inlet is formed in one side of the adsorption buffer area, and a water outlet is formed in the lower end of one side of the disinfection area; the top of the sewage purification area is connected with a gas emission reduction area through a net plate frame, the two ends of a net frame plate are detachably connected with the sewage purification area through a dismounting mechanism, a plurality of filler frames used for containing filler are arranged in the organic pollutant conversion area, and through holes are formed in the frame walls of the filler frames; positioning grooves are formed in the two side walls of each filler frame respectively, vertical sliding grooves are formed in the two side walls of the organic pollutant conversion area respectively, long-strip-shaped sliding blocks are arranged in the sliding grooves in a sliding mode, positioning blocks are arranged on one sides of the sliding blocks, and the sewage treatment device is good in sewage treatment effect and high in efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a low-energy consumption integrated sewage treatment system suitable for rural areas. Background Art

[0002] With the development of rural economy and the improvement of rural residents' living standards, rural domestic sewage has gradually increased. The existing rural decentralized sewage treatment devices are of various types, using various treatment processes and principles, mainly including artificial wetland method, aerobic activated sludge method, biofilm technology method, etc.

[0003] In the prior art, rural sewage treatment systems have the disadvantages of large floor space, poor treatment effect, and high labor consumption. In addition, in order to improve the treatment effect during sewage treatment, filler adsorption and aeration methods are usually used. However, after a period of use, the adsorption capacity of the filler often reaches saturation, and the filler is generally arranged in multiple layers. When replacing it, the operator usually needs to enter the area, transport the saturated filler, and then lay the new filler at the corresponding position in the area, which makes the filler replacement efficiency low. Summary of the invention

[0004] In order to solve the above technical problems, the present invention specifically adopts the following technical solutions.

[0005] A low-energy integrated sewage treatment system suitable for rural areas is designed, comprising a sewage purification area, wherein a plurality of partitions are arranged in the sewage purification area, wherein the partitions sequentially separate the sewage purification area into a connected adsorption buffer area, a primary sedimentation area, an organic pollutant conversion area, a secondary sedimentation area, and a disinfection area, wherein a water inlet is provided at an upper end of one side of the adsorption buffer area, and a water outlet is provided at a lower end of one side of the disinfection area; a gas emission reduction area is connected to the top of the sewage purification area through a mesh frame, and the greenhouse gas generated in the sewage purification area can enter the gas emission reduction area through the mesh holes on the mesh frame plate, and the gas emission reduction area is filled with a medium filler, and the medium filler can capture and degrade CH4 in the greenhouse gas; The two ends of the grid plate are detachably connected to the sewage purification area through a disassembly mechanism. A plurality of filling frames for containing fillers are provided in the organic pollutant conversion area. Through holes are provided on the frame walls of the plurality of filling frames. Each filling frame is stacked vertically, and positioning grooves are respectively provided on the two side walls of each filling frame. Vertical slide grooves are respectively provided on the two side walls of the organic pollutant conversion area. A long strip slider is provided for sliding in the slide groove. A positioning block corresponding to the positioning groove is provided on one side of the slider close to the filling frame, and the positioning block is clamped in the positioning groove.

[0006] Preferably, a limiting ring is fixed at the lower end of the inner wall of the organic pollutant conversion zone.

[0007] Preferably, a same connecting rod is connected to the middle position of each packing frame, and the top of the connecting rod extends to the top of the organic pollutant conversion zone.

[0008] Preferably, an aeration mechanism is provided in the organic pollutant conversion zone, and the aeration mechanism includes a blower respectively arranged on the front and rear outer walls of the organic pollutant conversion zone, an air inlet pipe connected to the blower outlet, a transverse branch connected to the air inlet pipe, a vertical branch connected to the transverse branch, a transverse aeration pipe connected to the vertical branch, and a plurality of evenly arranged longitudinal aeration pipes connected to the transverse aeration pipes, wherein there are two transverse aeration pipes, which are respectively arranged near the front and rear inner walls of the organic pollutant conversion zone, and both ends of the longitudinal aeration pipe are respectively connected to the two transverse aeration pipes, and aeration holes are respectively opened at the upper ends of the transverse aeration pipe and the longitudinal aeration pipe, and the transverse branches are respectively arranged on the front and rear inner walls of the organic pollutant conversion zone.

[0009] Preferably, the transverse aeration pipe and the longitudinal aeration pipe are respectively fixed to the bottom end in the organic pollutant conversion zone by fasteners, and the fasteners include a clamp, a support vertical plate, and a fixed plate connected in sequence from top to bottom. There are two support vertical plates, and the fixed plate is fixed to the bottom end of the organic pollutant conversion zone by bolts. The transverse aeration pipe and the longitudinal aeration pipe are respectively fixed by clamps, and the clamp includes two semicircular rings hinged at one end and fixedly connected by bolts at the other end.

[0010] Preferably, the disassembly mechanism includes vertical plates respectively fixed on both ends of the grid plate, an L-shaped connecting plate connected to the two side walls of the sewage purification area and located below the vertical plates, a clamping rod movably inserted into the connecting plate, and a clamping groove opened on the outer walls on both sides of the sewage purification area, the clamping groove corresponds to the clamping rod, a plug hole for the clamping rod to pass through is opened on the vertical plate, a limiting plate is connected to the clamping rod near the vertical plate, a compression spring is sleeved on the clamping rod between the limiting plate and the connecting plate, one end of the clamping rod passes through the plug hole and is clamped in the clamping groove, and the other end extends out of the connecting plate and is connected to a pull handle.

[0011] Preferably, an insert block is provided at the bottom of the grid plate, and a slot corresponding to the insert block is provided at the top of the side wall of the sewage purification area, and the insert block is inserted into the slot.

[0012] Preferably, a connecting pipe is connected between the secondary sedimentation zone and the disinfection zone, and the lower end of the connecting pipe extends to the bottom of the secondary sedimentation zone, and the upper end passes through the partition and extends to the top of the disinfection zone. A plurality of staggered water baffles are respectively provided on the inner walls on both sides of the disinfection zone, and a plurality of flow holes are respectively provided on each water baffle, and ultraviolet disinfection lamps are provided on the front and rear side walls of the disinfection zone.

[0013] The beneficial effects of the present invention are: 1. The present invention adopts a multi-stage purification process (adsorption buffer zone, primary precipitation zone, organic pollutant conversion zone, etc.), and in the organic pollutants, through the cooperation of the positioning block on the slider and the positioning groove on the filling frame, all the filling frames on the connecting rod are pulled by the handle, and the filling frames can be taken out and replaced at one time along the slide grooves on the inner walls of both sides of the organic pollutant conversion zone under the drive of the slider, thereby improving the replacement efficiency of the filler, and the structure is simple and the operation is convenient.

[0014] 2. The present invention conveniently disassembles the grid plate and the sewage purification area through a disassembly mechanism. The clamping rod can be pulled out from the insertion hole on the vertical plate and the clamping slot on the side wall of the sewage purification area by pulling the handle, and the grid plate is released from restriction, thereby facilitating the assembly of the gas emission reduction area. During installation, the two are better positioned through the cooperation of the plug block and the slot, and the clamping rod is loosened. Under the action of the compression spring, the clamping rod can be inserted into the insertion hole and the clamping slot, thereby realizing the fixed assembly of the gas emission reduction area and the sewage purification area.

[0015] 3. The present invention optimizes the aeration structure by setting a plurality of transverse aeration pipes and longitudinal aeration pipes so that they are all evenly distributed at the bottom of the organic pollutant conversion zone, making the aeration more uniform, so that the activated sludge settled at the bottom of the pool can obtain sufficient oxygen, thereby improving the decomposition efficiency of the activated sludge on organic matter in the sewage and improving the pollutant removal rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the organic pollutant conversion zone; Figure 4 yes Figure 1 A is an enlarged structural diagram; Figure 5 yes Figure 1 The enlarged structural diagram at B in FIG. Figure 6 yes Figure 1 The enlarged structural diagram at C in FIG. The numbers in the figure are: 1 sewage purification area, 2 adsorption buffer zone, 3 primary sedimentation area, 4 organic pollutant conversion area, 5 secondary sedimentation area, 6 disinfection area, 7 water inlet, 8 grid plate, 9 gas emission reduction area, 10 return pipeline one, 11 partition, 12 horizontal branch pipe, 13 vertical branch pipe, 14 handle, 15 connecting rod, 16 return pipeline two, 17 slider, 18 packing frame, 19 connecting pipe, 20 ultraviolet disinfection lamp, 21 water baffle, 22 longitudinal aeration pipe, 23 horizontal aeration pipe, 24 pull handle, 25 clamping rod, 26 compression spring, 27 limit plate, 28 vertical plate, 29 plug block, 30 slot, 31 clamping slot, 32 connecting plate, 33 positioning block, 34 positioning slot, 35 support vertical plate, 36 fixing plate, 37 clamp, 38 blower, 39 air inlet pipe, 40 water outlet, 41 space. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example

[0018] A low-energy integrated sewage treatment system suitable for rural areas, such as Figures 1 to 6 As shown, it includes a sewage purification area 1, and a plurality of partitions 11 are provided in the sewage purification area 1 to sequentially separate the sewage purification area into an adsorption buffer area 2, a primary sedimentation area 3, an organic pollutant conversion area 4, a secondary sedimentation area 5, and a disinfection area 6. A stirring mechanism is provided in the adsorption buffer area 2, a water inlet 7 is provided at an upper end of one side of the adsorption buffer area 2, and a water outlet 40 is provided at a lower end of one side of the disinfection area 6; a gas emission reduction area 9 is connected to the top of the sewage purification area 1 through a mesh frame, and the greenhouse gas generated by the sewage purification area 1 can enter the gas emission reduction area 9 through the mesh holes on the mesh frame plate 8, and the gas emission reduction area 9 is filled with medium fillers, which can capture and degrade CH4 in the greenhouse gas; a reflux pipeline 10 is provided between the primary sedimentation area 3 and the adsorption buffer area 2, and a reflux pipeline 2 16 is provided between the secondary sedimentation area 5 and the organic pollutant conversion area 4, and reflux pumps are provided on the reflux pipeline 10 and the reflux pipeline 2 16 respectively to realize sludge reflux and maintain stable sludge types and concentrations in the adsorption buffer area 2 and the organic pollutant conversion area 4.

[0019] The adsorption buffer zone 2 is enriched with microorganisms from the sewage transport network, and is mixed with the sludge returned from the primary sedimentation zone 3 by a mixer to maintain a high sludge concentration in the area and avoid sedimentation. The adsorption buffer zone 2 has good impact resistance and avoids the impact of changes in the quality and quantity of the incoming water on the integrated system. The setting of the primary sedimentation zone 3 and the secondary sedimentation zone 5 can achieve the separation of water and sludge.

[0020] The two ends of the grid plate 8 are detachably connected to the sewage purification area 1 through a disassembly mechanism, which is convenient for removing the gas emission reduction area 9 from the top of the sewage purification area 1, thereby realizing the replacement of the filler and the installation of the aeration pipe; specifically, the disassembly mechanism includes vertical plates 28 respectively fixed to the two ends of the grid plate 8, an L-shaped connecting plate 32 connected to the two side walls of the sewage purification area 1 and located below the vertical plate 28, a clamping rod 25 movably inserted into the connecting plate 32, and a clamping groove 31 provided on the outer walls of both sides of the sewage purification area 1, the clamping groove 31 corresponding to the clamping rod 25, a plug hole for the clamping rod 25 to pass through is provided on the vertical plate 28, a limit plate 27 is connected to the clamping rod 25 near the vertical plate 28, and a compression spring 26 is sleeved on the clamping rod 25 between the limit plate 27 and the connecting plate 32, one end of the clamping rod 25 passes through the plug hole and is clamped in the clamping groove 31, and the other end extends out of the connecting plate 32 and is connected to the pull handle 24. Furthermore, in order to facilitate the positioning of the gas emission reduction area 9 on the grid plate 8 and the sewage purification area 1 during installation, an insert block 29 is provided at the bottom of the grid plate 8, and a slot 30 corresponding to the insert block 29 is provided at the top of the side wall of the sewage purification area 1, and the insert block 29 is inserted into the slot 30. By pulling the handle 24, the clamping rod is pulled out from the insertion hole and the clamping slot 31, so that the grid plate 8 and the sewage purification area 1 are freed from the restriction, and the gas emission reduction area 9 above the grid plate 8 can be removed from the top of the sewage purification area 1, so as to facilitate the assembly and installation of the two.

[0021] A plurality of packing frames 18 for holding fillers are provided in the organic pollutant conversion zone 4. Space is left between each packing frame and the inner walls of the front and rear sides of the organic pollutant conversion zone, so that the packing frame and the pipeline of the aeration mechanism do not interfere with each other. Through holes are provided on the frame walls of the plurality of packing frames 18. When the fillers are laid in the material frames, the fillers are supported by water-permeable and breathable non-woven fabrics to prevent the fillers from leaking through the through holes. Each packing frame 18 is stacked vertically, and positioning grooves 34 are respectively provided on the two side walls of each packing frame 18. Vertical slide grooves are respectively provided on the two side walls of the organic pollutant conversion zone 4. Long strip sliders 17 are provided for sliding in the slide grooves. A positioning block 33 corresponding to the positioning groove 34 is provided on one side of the slider 17 close to the packing frame 18. The positioning block 33 is clamped in the positioning groove 34. The fillers can form biofilms in the activated sludge, increase the density of microorganisms, and enhance the removal of pollutants. The cooperation between the positioning groove 34 and the positioning block 33 can facilitate the installation and removal of multiple packing frames 18 at one time, thereby improving the replacement efficiency of the packing.

[0022] Furthermore, in order to limit the position of the multiple filling frames 18 , a limiting ring is fixed at the lower end of the inner wall of the organic pollutant conversion zone 4 .

[0023] Furthermore, in order to facilitate the removal of the filling frame 18, the same connecting rod 15 is connected to the middle position of each filling frame 18, the top of the connecting rod 15 extends to the top of the organic pollutant conversion zone 4, and a handle 14 is connected to the top of the connecting rod 15. The handle 14 can be used to better pull the filling frame 18 out from the top of the organic pollutant conversion zone 4.

[0024] In order to form an aerobic environment, an aeration mechanism is provided in the organic pollutant conversion zone 4, and the aeration mechanism includes a blower 38 respectively arranged on the front and rear outer walls of the organic pollutant conversion zone 4, an air inlet pipe 39 connected to the outlet of the blower 38, a transverse branch pipe 12 connected to the air inlet pipe 39, a vertical branch pipe 13 connected to the transverse branch pipe 12, a transverse aeration pipe 23 connected to the vertical branch pipe 13, and a plurality of evenly arranged longitudinal aeration pipes 22 connected to the transverse aeration pipe 23, wherein there are two transverse aeration pipes 23, which are respectively arranged near the front and rear inner walls of the organic pollutant conversion zone 4, and the two ends of the longitudinal aeration pipe 22 are respectively connected to the two transverse aeration pipes 23, and aeration holes are respectively opened at the upper ends of the transverse aeration pipe 23 and the longitudinal aeration pipe 22, and the transverse branch pipes 12 are respectively arranged on the front and rear inner walls of the organic pollutant conversion zone 4.

[0025] Further, in order to improve the stability of the aeration pipe, the transverse aeration pipe 23 and the longitudinal aeration pipe 22 are respectively fixed to the bottom end of the organic pollutant conversion zone 4 by fasteners. The fasteners include a clamp 37, a support plate 35, and a fixing plate 36 connected in sequence from top to bottom. There are two support plates 35, and the fixing plate 36 is fixed to the bottom end of the organic pollutant conversion zone 4 by bolts. The transverse aeration pipe 23 and the longitudinal aeration pipe 22 are respectively fixed by clamps 37. The clamp 37 includes two semicircular rings hinged at one end and fixedly connected by bolts at the other end. In order to facilitate the installation of the transverse aeration pipe 23 and the longitudinal aeration pipe 22, a pedal can be set at a corner in the organic pollutant conversion zone 4, so as to facilitate the disassembly, assembly and replacement of the aeration pipe by the staff. Moreover, the arrangement of the above transverse aeration pipe 23 and the longitudinal aeration pipe 22 evenly distributed at the bottom of the organic pollutant conversion zone 4 can enhance the flow of sewage, so that the activated sludge is fully in contact with the sewage, and the decomposition efficiency of the activated sludge is further improved.

[0026] A connecting pipe 19 is connected between the secondary sedimentation area 5 and the disinfection area 6, and the lower end of the connecting pipe 19 extends to the bottom of the secondary sedimentation area 5, and the upper end passes through the partition 11 and extends to the upper part of the disinfection area 6. A plurality of water baffles 21 arranged in a staggered manner are respectively arranged on the inner walls on both sides of the disinfection area 6, and a plurality of flow holes are respectively arranged on each water baffle 21, and the flow holes can reduce the weighing pressure of the water baffle 21. Ultraviolet disinfection lamps 20 are arranged on the front and rear side walls of the disinfection area 6. The arrangement of multiple water baffles 21 can slow down the water flow speed and can more fully kill pathogenic microorganisms.

[0027] In this embodiment, since the amount of rural sewage treatment is small, an intermittent power supply method is adopted, so compared with the treatment of large amounts of urban sewage, the energy consumption is lower; this system receives sewage from the water inlet 7 and first enters the adsorption buffer 2, where a mixer is used to maintain a high sludge concentration, effectively adsorb and preliminarily purify the sewage. Subsequently, the sewage undergoes primary sedimentation, organic pollutant conversion (enhanced aeration to promote biodegradation), secondary sedimentation and other links in sequence, and pollutants are gradually removed. Finally, the ultraviolet disinfection lamp 20 is used to kill pathogenic microorganisms in the disinfection area 6, and the purified water is discharged from the water outlet 40. At the same time, the system is designed with a reflux pump to ensure the stable circulation of sludge in each treatment area and maintain the treatment efficiency.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-energy integrated sewage treatment system suitable for rural areas, characterized in that: It includes a sewage purification area, in which a plurality of partitions are arranged, and the partitions sequentially divide the sewage purification area into an adsorption buffer area, a primary sedimentation area, an organic pollutant conversion area, a secondary sedimentation area, and a disinfection area, a water inlet is provided at the upper end of one side of the adsorption buffer area, and a water outlet is provided at the lower end of one side of the disinfection area; the top of the sewage purification area is connected to a gas emission reduction area through a mesh frame, and the greenhouse gas generated in the sewage purification area can enter the gas emission reduction area through the mesh holes on the mesh frame plate, and the gas emission reduction area is filled with a medium filler, and the medium filler can capture and degrade CH4 in the greenhouse gas; The two ends of the grid plate are detachably connected to the sewage purification area through a disassembly mechanism. A plurality of filling frames for containing fillers are provided in the organic pollutant conversion area. Through holes are provided on the frame wall of each filling frame, and each filling frame is stacked vertically. Positioning grooves are provided on the two side walls of each filling frame, and vertical slide grooves are provided on the two side walls of the organic pollutant conversion area. A long strip-shaped slider is provided for sliding in the slide groove, and a positioning block corresponding to the positioning groove is provided on one side of the slider close to the filling frame, and the positioning block is clamped in the positioning groove; An aeration mechanism is provided in the organic pollutant conversion zone, and the aeration mechanism includes a blower respectively arranged on the front and rear outer walls of the organic pollutant conversion zone, an air inlet pipe connected to the blower outlet, a transverse branch pipe connected to the air inlet pipe, a vertical branch pipe connected to the transverse branch pipe, a transverse aeration pipe connected to the vertical branch pipe, and a plurality of evenly arranged longitudinal aeration pipes connected to the transverse aeration pipes, wherein there are two transverse aeration pipes, which are respectively arranged near the front and rear inner walls of the organic pollutant conversion zone, and both ends of the longitudinal aeration pipe are respectively connected to the two transverse aeration pipes, and aeration holes are respectively opened at the upper ends of the transverse aeration pipe and the longitudinal aeration pipe, and the transverse branch pipes are respectively arranged on the inner walls of the front and rear sides of the organic pollutant conversion zone; The transverse aeration pipe and the longitudinal aeration pipe are respectively fixed to the bottom end in the organic pollutant conversion zone by fasteners, and the fasteners include a clamp, a support plate, and a fixed plate connected in sequence from top to bottom. There are two support plates, and the fixed plate is fixed to the bottom end of the organic pollutant conversion zone by bolts. The transverse aeration pipe and the longitudinal aeration pipe are respectively fixed by clamps, and the clamp includes two semicircular rings hinged at one end and fixedly connected by bolts at the other end; The disassembly mechanism comprises vertical plates respectively fixed at both ends of the grid plate, an L-shaped connecting plate connected to the two side walls of the sewage purification area and located below the vertical plates, a clamping rod movably inserted into the connecting plate, and a clamping slot provided on the outer walls of both sides of the sewage purification area, wherein the clamping slot corresponds to and cooperates with the clamping rod, a plug hole for the clamping rod to pass through is provided on the vertical plate, a limit plate is connected to the clamping rod near the vertical plate, a compression spring is sleeved on the clamping rod between the limit plate and the connecting plate, one end of the clamping rod passes through the plug hole and is clamped in the clamping slot, and the other end extends out of the connecting plate and is connected to a pull handle; An insert block is arranged at the bottom of the grid plate, and a slot corresponding to the insert block is opened at the top of the side wall of the sewage purification area, and the insert block is inserted into the slot.

2. The low-energy integrated sewage treatment system suitable for rural areas as claimed in claim 1, characterized in that: A limiting ring is fixed at the lower end of the inner wall of the organic pollutant conversion zone.

3. The low-energy integrated sewage treatment system suitable for rural areas as claimed in claim 1, characterized in that: The same connecting rod is connected to the middle position of each packing frame, and the top of the connecting rod extends to the top of the organic pollutant conversion zone.

4. The low-energy integrated sewage treatment system suitable for rural areas as claimed in claim 1, characterized in that: A connecting pipe is connected between the secondary sedimentation area and the disinfection area, and the lower end of the connecting pipe extends to the bottom of the secondary sedimentation area, and the upper end passes through the partition and extends to the top of the disinfection area. A plurality of staggered water baffles are respectively provided on the inner walls on both sides of the disinfection area, and a plurality of flow holes are respectively provided on each water baffle, and ultraviolet disinfection lamps are provided on the front and rear side walls of the disinfection area.

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