CN217077329U - Rural domestic sewage treatment system - Google Patents
Rural domestic sewage treatment system Download PDFInfo
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- CN217077329U CN217077329U CN202221148820.1U CN202221148820U CN217077329U CN 217077329 U CN217077329 U CN 217077329U CN 202221148820 U CN202221148820 U CN 202221148820U CN 217077329 U CN217077329 U CN 217077329U
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Abstract
The utility model provides a rural domestic sewage treatment system belongs to rural domestic sewage treatment facility field. The system comprises a sewage treatment station and a multistage biological contact oxidation reactor, wherein the sewage treatment station and the multistage biological contact oxidation reactor are buried underground; the interior of the sewage treatment station is divided into a grating pool, an adjusting pool and a sludge pool, a sewage collecting pipe is arranged at the upper part of the grating pool, an artificial grating is arranged between the grating pool and the adjusting pool, a reflux port is arranged between the adjusting pool and the sludge pool, and a sewage lifting pump is arranged at the bottom in the adjusting pool; multistage biological contact oxidation reactor is including leading oxygen deficiency anaerobism sedimentation tank, first good oxygen deficiency sedimentation tank, the good oxygen deficiency sedimentation tank of second, the sediment clarification jar that establishes ties in proper order, and the sewage elevator pump promotes the sewage in the equalizing basin in leading oxygen deficiency anaerobism sedimentation tank through the pipeline. The utility model discloses be favorable to reducing rural domestic sewage to river, environmental pollution and damage, energy-concerving and environment-protective, be suitable for and popularize and apply in rural area.
Description
Technical Field
The utility model belongs to rural domestic sewage treatment facility field, in particular to rural domestic sewage treatment system.
Background
The sewage generated by rural residents mainly comprises sewage generated by flushing toilets and public toilets in villages and drainage of washing, bathing and kitchens of peasant households, and drainage of rural tourism reception households, hotels and restaurants and the like, but does not comprise industrial wastewater of rural enterprises, large-scale agricultural and sideline product processing wastewater, business concentrated catering wastewater of tourist areas, livestock and poultry breeding and slaughtering wastewater and the like.
At present, rural villages and residents are scattered, sewage discharge has the characteristics of wide and scattered discharge range, and domestic sewage of rural residents cannot be treated in a large-scale centralized manner. Along with more and more attention paid to environmental protection, rural domestic sewage is gradually upgraded from direct discharge to discharge after being treated by a closed septic tank, the upper end of the septic tank is provided with an inlet for liquid inlet and an outlet for liquid discharge and exhaust, the sewage is directly discharged after anaerobic fermentation in the septic tank, and the water quality after treatment can not reach the first-level A standard of pollutant discharge standard of urban sewage treatment plants. The sewage of the septic tank which does not reach the standard is gathered in village ditches, fish ponds and lakes, exceeds the bearing capacity of natural water, destroys the water environment and threatens the drinking water safety of vast rural areas.
Disclosure of Invention
The utility model provides a rural domestic sewage treatment system to the above-mentioned defect or not enough that prior art exists carries out discharge again after the secondary centralized processing with each rural septic tank exhaust sewage, has reduced rural domestic sewage to the pollution and the damage of all ring edge borders.
In order to realize the purpose, the technical proposal adopted by the utility model is a rural domestic sewage treatment system, which comprises a sewage treatment station and a multistage biological contact oxidation reactor, wherein the sewage treatment station and the multistage biological contact oxidation reactor are both buried underground; the interior of the sewage treatment station is divided into a grating pool, an adjusting pool and a sludge pool, a sewage collecting pipe is arranged at the upper part of the grating pool, an artificial grating is arranged between the grating pool and the adjusting pool, a reflux port is arranged between the adjusting pool and the sludge pool, and a sewage lifting pump is arranged at the bottom in the adjusting pool; multistage biological contact oxidation reactor is including leading oxygen deficiency anaerobism sedimentation tank, first good oxygen deficiency sedimentation tank, the good oxygen deficiency sedimentation tank of second, the sediment clarification jar that establishes ties in proper order, and the sewage elevator pump promotes the sewage in the equalizing basin in leading oxygen deficiency anaerobism sedimentation tank through the pipeline.
Further, leading oxygen deficiency anaerobism precipitation tank includes leading outer jar of body, leading inner tank body, is equipped with the intermediate layer between leading outer jar of body, the leading inner tank body, and the internal middle part of leading inner tank is equipped with leading three-dimensional spiral biological rope filler, and the intermediate layer middle part between leading outer jar of body and the leading inner tank body is equipped with the anaerobism mud filter bed, and sewage elevator pump promotes the sewage in the equalizing basin to leading inner tank body upper portion through the pipeline, and leading outer jar of body upper portion is equipped with leading drain pipe, and leading drain pipe connects first good oxygen deficiency precipitation tank.
Further, first good oxygen deficiency gunbarrel includes the first outer jar of body, the first inner tank body, is equipped with the intermediate layer between the first outer jar of body, the first inner tank body, the internal middle part of first inner tank is equipped with first three-dimensional spiral biological rope and packs, the intermediate layer middle part between the first outer jar of body, the first inner tank body is equipped with first oxygen deficiency mud filter bed, the drainage end of leading drain pipe stretches into the internal upper portion of first inner tank, first outer jar of body upper portion is equipped with first drain pipe, the good oxygen deficiency gunbarrel of first drain pipe connection second.
Further, the second aerobic-anoxic settling tank comprises a second outer tank body and a second inner tank body, an interlayer is arranged between the second outer tank body and the second inner tank body, a second three-dimensional spiral biological rope filler is arranged in the middle of the second inner tank body, a second anoxic sludge filtering layer is arranged in the middle of the interlayer between the second outer tank body and the second inner tank body, the drainage end of the first drainage pipe extends into the upper part of the second inner tank body, a second drainage pipe is arranged on the upper part of the second outer tank body, and the second drainage pipe is connected with a settling and clarifying tank.
Furthermore, a vertical guide flow cylinder is arranged at the central part in the sedimentation and clarification tank, an inclined tube precipitator is arranged in the middle of an interlayer between the inner wall of the sedimentation and clarification tank and the vertical guide flow cylinder, the water discharge end of the second water discharge pipe extends into the upper part in the vertical guide flow cylinder, and a third water discharge pipe is further arranged on the upper part of the sedimentation and clarification tank.
Furthermore, the bottom is equipped with the sludge pump in the sediment clarifier tank, and the mud pipeline of going out of sludge pump has two branch pipes, and one of them branch pipe connects the sludge impoundment, and the mud end of arranging of another branch pipe stretches into the internal upper portion of leading internal tank.
Further, the bottom in the preposed anoxic anaerobic settling tank, the first aerobic anoxic settling tank and the second aerobic anoxic settling tank is respectively provided with a preposed aeration pipe, a first aeration pipe and a second aeration pipe, and the preposed aeration pipe, the first aeration pipe and the second aeration pipe are respectively connected with an aerator arranged on the ground through pipelines.
Furthermore, the water discharging end of the third water discharging pipe is connected with an inspection well, a purified water discharging pipe is arranged on the inspection well, and the discharging end of the purified water discharging pipe is arranged above the river.
Furthermore, the second water discharge pipe is connected with a dephosphorization dosing box arranged on the ground through a pipeline.
Compared with the prior art, owing to adopted above-mentioned technical scheme, the beneficial technological effect of the utility model is that: the utility model discloses a rural domestic sewage treatment system sends into the grid pond of sewage treatment station after collecting the domestic sewage that comes from each septic tank, gets into the equalizing basin after getting rid of great suspension floater and particle impurity through artifical grid, carries out the homogeneity and the average volume of quality of water, sets up the sewage elevator pump in the equalizing basin and send sewage to multistage biological contact oxidation reactor and carry out multistage biochemical reaction and handle in order to degrade the organic matter in the sewage, discharges the clear water after deposiing again; the utility model discloses a rural domestic sewage treatment system is favorable to reducing rural domestic sewage to river, environmental pollution and damage, and is energy-concerving and environment-protective, is suitable for and popularizes and applies in rural area.
Drawings
FIG. 1 is a schematic structural view of a rural domestic sewage treatment system of the present invention;
reference numerals: 1-a sewage treatment station, 101-a grid tank, 102-a regulating tank, 103-a sludge tank, 104-a sewage collecting pipe, 105-an artificial grid, 106-a return port, 107-a sewage lifting pump, 2-a preposed anoxic anaerobic precipitation tank, 201-a preposed outer tank, 202-a preposed inner tank, 203-a preposed three-dimensional spiral biological rope filler, 204-an anaerobic sludge filtering layer, 205-a preposed drain pipe, 3-a first aerobic-anoxic precipitation tank, 301-a first outer tank, 302-a first inner tank, 303-a first three-dimensional spiral biological rope filler, 304-a first anoxic sludge filtering layer, 305-a first drain pipe, 4-a second aerobic-anoxic precipitation tank, 401-a second outer tank, 402-a second inner tank, 403-a second three-dimensional spiral biological rope filler, 404-a second anoxic sludge filtering layer, 405-a second drain pipe, 5-a settling and clarifying tank, 501-a vertical guide cylinder, 502-an inclined pipe precipitator, 503-a sludge pump, 504-a third drain pipe, 6-a front aeration pipe, 7-a first aeration pipe, 8-a second aeration pipe, 9-an aerator, 10-a phosphorus removal dosing box, 11-an inspection well and 1101-a purified water discharge pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by preferred embodiments.
Examples
Referring to the attached drawing 1, the rural domestic sewage treatment system of the embodiment comprises a sewage treatment station 1 and a multistage biological contact oxidation reactor, wherein the sewage treatment station 1 and the multistage biological contact oxidation reactor are buried underground; the sewage treatment station 1 is internally divided into a grating tank 101, an adjusting tank 102 and a sludge tank 103, a sewage collecting pipe 104 is arranged at the upper part of the grating tank 101, an artificial grating 105 is arranged between the grating tank 101 and the adjusting tank 102, a return port 106 is arranged between the adjusting tank 102 and the sludge tank 103, and a sewage lifting pump 107 is arranged at the bottom in the adjusting tank 102; the multistage biological contact oxidation reactor comprises a preposed anoxic anaerobic precipitation tank 2, a first aerobic-anoxic precipitation tank 3, a second aerobic-anoxic precipitation tank 4 and a precipitation clarification tank 5 which are sequentially connected in series, and a sewage lifting pump 107 lifts sewage in the regulating tank 102 into the preposed anoxic anaerobic precipitation tank 2 through a pipeline.
In this embodiment, the sewage collecting pipe 104 collects the domestic sewage from the septic tank, the domestic sewage enters the grating tank 101 of the sewage treatment station 1, the artificial grating 105 removes large suspended floating objects and particle impurities and then enters the adjusting tank 102, the water quality is homogenized and equalized, the adjusting tank 102 is internally provided with the sewage lifting pump 107 to lift the sewage to the multistage biological contact oxidation reactor, and the solid impurities intercepted by the artificial grating 105 are regularly removed and transported.
In this embodiment, the top of the grid pond 101, the top of the adjusting pond 102 and the top of the sludge pond 103 are all provided with cleaning ports, and the upper part of the sludge pond 103 is also provided with an exhaust port.
Specifically, the preposed anoxic anaerobic precipitation tank 2 comprises a preposed outer tank body 201 and a preposed inner tank body 202, an interlayer is arranged between the preposed outer tank body 201 and the preposed inner tank body 202, a preposed three-dimensional spiral biological rope filler 203 is arranged in the middle of the preposed inner tank body 202, an anaerobic sludge filtering layer 204 is arranged in the middle of the interlayer between the preposed outer tank body 201 and the preposed inner tank body 202, sewage in the regulating tank 102 is lifted to the upper part of the preposed inner tank body 202 through a pipeline by a sewage lifting pump 107, a preposed drain pipe 205 is arranged on the upper part of the preposed outer tank body 201, and the preposed drain pipe 205 is connected with the first aerobic-anoxic precipitation tank 3. The first aerobic-anoxic settling tank 3 comprises a first outer tank body 301 and a first inner tank body 302, an interlayer is arranged between the first outer tank body 301 and the first inner tank body 302, a first three-dimensional spiral biological rope filler 303 is arranged in the middle of the first inner tank body 302, a first anoxic sludge filtering layer 304 is arranged in the middle of the interlayer between the first outer tank body 301 and the first inner tank body 302, the drainage end of the front drainage pipe 205 extends into the upper part of the first inner tank body 302, a first drainage pipe 305 is arranged on the upper part of the first outer tank body 301, and the first drainage pipe 305 is connected with the second aerobic-anoxic settling tank 4. The second aerobic-anoxic settling tank 4 comprises a second outer tank body 401 and a second inner tank body 402, an interlayer is arranged between the second outer tank body 401 and the second inner tank body 402, a second three-dimensional spiral biological rope filler 403 is arranged in the middle of the second inner tank body 402, a second anoxic sludge filter layer 404 is arranged in the middle of the interlayer between the second outer tank body 401 and the second inner tank body 402, the drainage end of the first drainage pipe 305 extends into the upper portion of the second inner tank body 402, a second drainage pipe 405 is arranged on the upper portion of the second outer tank body 401, and the second drainage pipe 405 is connected with the settling and clarifying tank 5. The interior central point of sediment clarification tank 5 is equipped with vertical draft tube 501, and the intermediate layer middle part between 5 inner walls of sediment clarification tank and vertical draft tube 501 has laid down pipe settler 502, and the upper portion in vertical draft tube 501 is stretched into to the drainage end of second drain pipe 405, and sediment clarification tank 5 upper portion still is equipped with third drain pipe 504. The bottom in the settling tank 5 is provided with a sludge pump 503, a sludge outlet pipeline of the sludge pump 503 is provided with two branch pipes, one branch pipe is connected with the sludge tank 103, and the sludge discharge end of the other branch pipe extends into the upper part in the preposed inner tank 202. The bottom in leading oxygen deficiency anaerobism sedimentation tank 2, first good oxygen and oxygen deficiency sedimentation tank 3, the good oxygen and oxygen deficiency sedimentation tank 4 of second is equipped with leading aeration pipe 6, first aeration pipe 7, second aeration pipe 8 respectively, leading aeration pipe 6, first aeration pipe 7, second aeration pipe 8 respectively through the pipeline with locate the aerator 9 on the ground and be connected.
In the embodiment, sewage is lifted into a preposed inner tank 202 of a preposed anoxic anaerobic precipitation tank 2, an anoxic zone is arranged in the preposed inner tank 202, three-dimensional spiral biological rope filler and anaerobic activated sludge are filled in the preposed inner tank 202, return sludge and nitrified liquid enter the upper part of the anoxic zone, and higher organic carbon sources in raw water are utilized for denitrification and denitrification, and meanwhile, a part of organic matters are degraded; an interlayer between the preposed outer tank body 201 and the preposed inner tank body 202, namely an anaerobic zone, is used for carrying out mud-water separation, supernatant enters the first aerobic-anoxic precipitation tank 3, and settled activated sludge forms a high-concentration anaerobic sludge filter layer 204 in the interlayer. The sewage enters a first inner tank body 302 of a first aerobic-anoxic settling tank 3 through a preposed drain pipe 205, an aerobic area is arranged in the first inner tank body 302, three-dimensional spiral biological rope fillers and aerobic active sludge are filled in the aerobic area, a first aeration pipe 7 is arranged at the bottom of the tank body to supply oxygen for the suspended aerobic active sludge and biological films attached to the biological rope fillers, the sewage further degrades organic pollutants and ammonia nitrogen in the aerobic area and changes the ammonia nitrogen into nitrite nitrogen or nitrate nitrogen, then the sewage enters an interlayer between a first outer tank body 301 and the first inner tank body 302, namely an anoxic area, sludge and water separation is carried out, supernatant enters a second aerobic-anoxic settling tank 4, the settled active sludge forms a high-concentration first anoxic sludge filter layer 304 in the interlayer, and the nitrate nitrogen or nitrite nitrogen is denitrified by microorganisms through endogenous respiration again. The sewage enters the second aerobic-anoxic settling tank 4 after being treated by the first aerobic-anoxic settling tank 3 to repeat the biochemical reaction process of the first aerobic-anoxic settling tank 3. The sewage after passing through the second aerobic-anoxic settling tank 4 enters a vertical guide flow cylinder 501 at the central part of a settling and clarifying tank 5, flows downwards to the bottom of the tank, then flows upwards through an inclined tube precipitator 502, and the clear water after settling and clarification reaches the standard and is discharged to a river or recycled.
The settled sludge at the bottom of the settling and clarifying tank 5 partially flows back to the anoxic zone of the first aerobic-anoxic settling tank 3 through a sludge pump 503, part of the settled sludge is conveyed to a sludge tank 103, the supernatant of the sludge tank 103 flows back to the regulating tank 102 through a return port 106, and the sludge concentrated in the sludge tank 103 is settled in the tank for anaerobic digestion and is transported outside regularly.
Specifically, the second water discharge pipe 405 is connected to a phosphorus removal dosing box 10 disposed on the ground through a pipeline. The utility model discloses a denitrification is reinforceed to rural domestic sewage treatment system emphasis, owing to singly lean on biological method to get rid of total phosphorus and hardly realize stabilizing up to standard, the event has still configured the dephosphorization dosing box 10 of supplementary dephosphorization of electrochemistry, makes total phosphorus realize that the controllability is stable up to standard.
Specifically, the drainage end of the third drainage pipe 504 is connected to an inspection well 11, a purified water drainage pipe 1101 is disposed on the inspection well 11, and the drainage end of the purified water drainage pipe 1101 is disposed above the river.
Preferably, if reclaimed water is needed for reuse, another clean water tank is built to store a part of clean water, and the surplus clean water overflows and is discharged outside.
The foregoing is a preferred embodiment of the present invention for explaining the technical solution of the present invention, and those skilled in the art can make routine modifications, equivalent replacements, and improvements within the spirit and principle of the present invention.
Claims (9)
1. A rural domestic sewage treatment system is characterized in that: comprises a sewage treatment station (1) and a multistage biological contact oxidation reactor, wherein the sewage treatment station (1) and the multistage biological contact oxidation reactor are buried underground; the sewage treatment station (1) is internally divided into a grating tank (101), an adjusting tank (102) and a sludge tank (103), a sewage collecting pipe (104) is arranged at the upper part of the grating tank (101), an artificial grating (105) is arranged between the grating tank (101) and the adjusting tank (102), a return port (106) is arranged between the adjusting tank (102) and the sludge tank (103), and a sewage lifting pump (107) is arranged at the bottom in the adjusting tank (102); multistage biological contact oxidation reactor is including leading oxygen deficiency anaerobism settling cask (2), first good oxygen deficiency settling cask (3), second good oxygen deficiency settling cask (4), the sediment clarifier tank (5) that establish ties in proper order, and sewage lift pump (107) promote the sewage in equalizing basin (102) in leading oxygen deficiency anaerobism settling cask (2) through the pipeline.
2. The rural domestic sewage treatment system of claim 1, wherein: the preposed anoxic anaerobic precipitation tank (2) comprises a preposed outer tank body (201) and a preposed inner tank body (202), an interlayer is arranged between the preposed outer tank body (201) and the preposed inner tank body (202), a preposed three-dimensional spiral biological rope filler (203) is arranged in the middle of the preposed inner tank body (202), an anaerobic sludge filtering layer (204) is arranged in the middle of the interlayer between the preposed outer tank body (201) and the preposed inner tank body (202), a sewage lifting pump (107) lifts sewage in the regulating tank (102) to the upper part of the preposed inner tank body (202) through a pipeline, a preposed drain pipe (205) is arranged on the upper part of the preposed outer tank body (201), and the preposed drain pipe (205) is connected with the first aerobic-anoxic precipitation tank (3).
3. The rural domestic sewage treatment system of claim 2, wherein: the first aerobic-anoxic sedimentation tank (3) comprises a first outer tank body (301) and a first inner tank body (302), an interlayer is arranged between the first outer tank body (301) and the first inner tank body (302), a first three-dimensional spiral biological rope filler (303) is arranged in the middle of the inner portion of the first inner tank body (302), a first anoxic sludge filtering layer (304) is arranged in the middle of the interlayer between the first outer tank body (301) and the first inner tank body (302), the water discharging end of the front water discharging pipe (205) extends into the inner upper portion of the first inner tank body (302), a first water discharging pipe (305) is arranged on the upper portion of the first outer tank body (301), and the first water discharging pipe (305) is connected with a second aerobic-anoxic sedimentation tank (4).
4. The rural domestic sewage treatment system of claim 3, wherein: the second aerobic-anoxic settling tank (4) comprises a second outer tank body (401) and a second inner tank body (402), an interlayer is arranged between the second outer tank body (401) and the second inner tank body (402), a second three-dimensional spiral biological rope filler (403) is arranged in the middle of the second inner tank body (402), a second anoxic sludge filtering layer (404) is arranged in the middle of the interlayer between the second outer tank body (401) and the second inner tank body (402), the drainage end of the first drainage pipe (305) extends into the inner upper part of the second inner tank body (402), a second drainage pipe (405) is arranged on the upper part of the second outer tank body (401), and the second drainage pipe (405) is connected with the settling and clarifying tank (5).
5. The rural domestic sewage treatment system of claim 4, wherein: the sedimentation clarification tank (5) interior central point portion is equipped with vertical draft tube (501), and the intermediate layer middle part between sedimentation clarification tank (5) inner wall and vertical draft tube (501) has laid down pipe settler (502), and the upper portion in vertical draft tube (501) is stretched into to the drainage end of second drain pipe (405), and sedimentation clarification tank (5) upper portion still is equipped with third drain pipe (504).
6. The rural domestic sewage treatment system of claim 5, wherein: the bottom is equipped with sludge pump (503) in sediment clarification tank (5), and the mud pipeline of sludge pump (503) has two branch pipes, and sludge impoundment (103) are connected to one of them branch pipe, and the row's mud end of another branch pipe stretches into the leading internal tank body (202) upper portion.
7. The rural domestic sewage treatment system of claim 1, wherein: the bottom in leading oxygen deficiency anaerobism gunbarrel (2), first good oxygen deficiency gunbarrel (3), second good oxygen deficiency gunbarrel (4) is equipped with leading aeration pipe (6), first aeration pipe (7), second aeration pipe (8) respectively, leading aeration pipe (6), first aeration pipe (7), second aeration pipe (8) are connected through pipeline and aeration machine (9) of locating on the ground respectively.
8. The rural domestic sewage treatment system of claim 5, wherein: the water discharging end of the third water discharging pipe (504) is connected with an inspection well (11), a purified water discharging pipe (1101) is arranged on the inspection well (11), and the discharging end of the purified water discharging pipe (1101) is arranged above the river.
9. The rural domestic sewage treatment system of claim 5, wherein: and the second water drainage pipe (405) is connected with a dephosphorization dosing box (10) arranged on the ground through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221148820.1U CN217077329U (en) | 2022-05-13 | 2022-05-13 | Rural domestic sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221148820.1U CN217077329U (en) | 2022-05-13 | 2022-05-13 | Rural domestic sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217077329U true CN217077329U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221148820.1U Active CN217077329U (en) | 2022-05-13 | 2022-05-13 | Rural domestic sewage treatment system |
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| CN (1) | CN217077329U (en) |
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2022
- 2022-05-13 CN CN202221148820.1U patent/CN217077329U/en active Active
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