CN113480108A - Domestic sewage comprehensive treatment system - Google Patents
Domestic sewage comprehensive treatment system Download PDFInfo
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- CN113480108A CN113480108A CN202110934562.3A CN202110934562A CN113480108A CN 113480108 A CN113480108 A CN 113480108A CN 202110934562 A CN202110934562 A CN 202110934562A CN 113480108 A CN113480108 A CN 113480108A
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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Abstract
The invention discloses a domestic sewage comprehensive treatment system which comprises a greenhouse, an artificial wetland, an AO (anaerobic-anoxic-oxic) process sewage treatment system and a tidal three-dimensional irrigation seedbed, wherein the artificial wetland, the AO process sewage treatment system and the tidal three-dimensional irrigation seedbed are all arranged in the greenhouse, a water inlet of the artificial wetland and a water inlet of the tidal three-dimensional irrigation seedbed are respectively communicated with a water outlet of the AO process sewage treatment system, a hot air blower, a ventilation fan and a temperature control switch are arranged in the greenhouse, and the hot air blower and the ventilation fan are respectively electrically connected with the temperature control switch. The domestic sewage comprehensive treatment system improves the treatment efficiency of domestic sewage, improves the resource utilization level of the domestic sewage, and promotes the carbon neutralization in the domestic sewage treatment process to reach the standard.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a domestic sewage comprehensive treatment system.
Background
At present, the domestic sewage treatment in vast rural areas of China usually adopts the traditional AO sewage treatment process or the artificial wetland technology, simple integrated equipment of the AO process has simple process and poor treatment capability, and the treated effluent is difficult to reach the standard stably; the perfect AO process has relatively complex treatment process and higher requirement on technical personnel, needs the on-site attendance of workers to add medicine, detect and debug, and is difficult to realize large-area popularization in rural areas.
The traditional artificial wetland has simple structure and process, single function, low treatment efficiency and large occupied area, is limited by climatic condition factors in cold areas, and can not be normally used or the treated water quality is easy to exceed the standard under the low-temperature condition.
Disclosure of Invention
The invention aims to provide a domestic sewage comprehensive treatment system, which is used for solving the problems in the prior art, improving the treatment efficiency of domestic sewage, improving the resource utilization level of the domestic sewage and promoting the carbon neutralization in the domestic sewage treatment process to reach the standard.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a domestic sewage comprehensive treatment system which comprises a greenhouse, an artificial wetland, an AO (anaerobic-anoxic-oxic) process sewage treatment system and a tidal three-dimensional irrigation seedbed, wherein the artificial wetland, the AO process sewage treatment system and the tidal three-dimensional irrigation seedbed are all arranged in the greenhouse, a water inlet of the artificial wetland and a water inlet of the tidal three-dimensional irrigation seedbed are respectively communicated with a water outlet of the AO process sewage treatment system, a hot air blower, a ventilation fan and a temperature control switch are arranged in the greenhouse, and the hot air blower and the ventilation fan are respectively electrically connected with the temperature control switch.
Preferably, the tidal three-dimensional irrigation seedling bed frame is arranged above the artificial wetland, the artificial wetland and the AO process sewage treatment system are both arranged in an integrated steel concrete tank body, and the integrated steel concrete tank body is positioned underground.
Preferably, the artificial wetland comprises a plurality of substrate filling tanks, a water diversion tank is communicated with the water inlet end and the water outlet end of any one of the substrate filling tanks, an aeration device is arranged in the water diversion tank, wetland substrates are filled in the substrate filling tanks, and the wetland substrates are porous granular solid substrates.
Preferably, the different matrix packing cells are connected in parallel or in series.
Preferably, the AO process sewage treatment system comprises an adjusting tank, an anaerobic tank, a distribution tank, an aerobic tank and a sedimentation tank which are sequentially communicated, wherein a water outlet of the sedimentation tank is communicated with the distribution tank through a first water return pipe, a water outlet of the sedimentation tank is communicated with the artificial wetland through a second water inlet pipe, a water outlet of the artificial wetland is communicated with the distribution tank through a second return pipe, and a water outlet of the sedimentation tank is communicated with a water inlet of the tide type three-dimensional irrigation seedbed through a third water inlet pipe; a first water inlet pipe is arranged on a water inlet of the adjusting tank, and a first water outlet pipe is arranged on a water outlet of the artificial wetland.
Preferably, the regulating tank comprises a first regulating tank and a second regulating tank, and a water inlet of the second regulating tank is communicated with a water outlet of the first regulating tank; the anaerobic tank comprises a first anaerobic tank, a second anaerobic tank and a third anaerobic tank which are sequentially communicated; the water outlet of the second regulating tank is communicated with the water inlet of the first anaerobic tank; and the water outlet of the third anaerobic tank is communicated with the water inlet of the distribution tank.
Preferably, the third water inlet pipe is provided with a regulating valve and an irrigation water pump.
Preferably, a solar power generation board is further paved at the top of the greenhouse, a storage battery is arranged in the greenhouse, and the solar power generation board, the air heater and the ventilation fan are respectively electrically connected with the storage battery.
Compared with the prior art, the invention has the following technical effects:
the domestic sewage comprehensive treatment system improves the treatment efficiency of domestic sewage, improves the resource utilization level of the domestic sewage, and promotes the carbon neutralization in the domestic sewage treatment process to reach the standard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an integrated domestic sewage treatment system according to the present invention;
FIG. 2 is a schematic view of a part of the domestic sewage comprehensive treatment system according to the present invention;
FIG. 3 is a block diagram showing the construction of an integrated domestic sewage treatment system according to the present invention;
wherein: 100. a domestic sewage comprehensive treatment system; 1. a first conditioning tank; 2. a second regulating reservoir; 3. a first anaerobic tank; 4. a second anaerobic tank; 5. a third anaerobic tank; 6. a water distribution tank; 7. an aerobic tank; 8. a sedimentation tank; 9. a substrate filling pool; 10. a first return pipe; 11. a second water inlet pipe; 12. a second return pipe; 13. a first water outlet pipe; 14. a diversion basin; 15. tide type three-dimensional irrigation seedbeds; 16. a greenhouse; 17. a first water inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a domestic sewage comprehensive treatment system, which is used for solving the problems in the prior art, improving the treatment efficiency of domestic sewage, improving the resource utilization level of the domestic sewage and promoting the carbon neutralization in the domestic sewage treatment process to reach the standard.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 3: the embodiment provides a domestic sewage comprehensive treatment system 100, which comprises a greenhouse 16, an artificial wetland, an AO process sewage treatment system and a tide type three-dimensional irrigation seedbed 15.
The AO process sewage treatment system comprises an adjusting tank, an anaerobic tank, a water distribution tank 6, an aerobic tank 7 and a sedimentation tank 8 which are sequentially communicated, wherein a water outlet of the sedimentation tank 8 is communicated with the water distribution tank 6 through a first water return pipe, a water outlet of the sedimentation tank 8 is communicated with the artificial wetland through a second water inlet pipe 11, a water outlet of the artificial wetland is communicated with the water distribution tank 6 through a second return pipe 12, and a water outlet of the sedimentation tank 8 is communicated with a water inlet of a tide type three-dimensional irrigation seedbed 15 through a third water inlet pipe; a first water inlet pipe 17 is arranged on the water inlet of the adjusting tank, and a first water outlet pipe 13 is arranged on the water outlet of the artificial wetland. The regulating reservoir comprises a first regulating reservoir 1 and a second regulating reservoir 2, and a water inlet of the second regulating reservoir 2 is communicated with a water outlet of the first regulating reservoir 1; the anaerobic tank comprises a first anaerobic tank 3, a second anaerobic tank 4 and a third anaerobic tank 5 which are communicated in sequence; the water outlet of the second regulating tank 2 is communicated with the water inlet of the first anaerobic tank 3; the water outlet of the third anaerobic tank 5 is communicated with the water inlet of the distribution tank 6; the water outlet of the sedimentation tank 8 is communicated with the distribution tank 6 through a first return pipe 10.
Water holes are uniformly distributed in the middle of the partition wall body between the first adjusting pool 1 and the second adjusting pool 2, and each water passing net is provided with a filtering and intercepting grid net. After sewage enters the first adjusting tank 1 through the first water inlet pipe 17, sediment in the sewage sinks to the bottom of the first adjusting tank 1, suspended matters float on the upper portion of the first adjusting tank 1 and are intercepted by the partition wall body between the first adjusting tank 1 and the second adjusting tank 2, and water flows enter the second adjusting tank 2 from the water passing hole of the partition wall body between the first adjusting tank 1 and the second adjusting tank 2. The isolation of accomplishing preliminary solid precipitate and suspended solid in first equalizing basin 1 mainly prevents that silt, big solid impurity and all kinds of suspended solids from getting into back-end system, prevents that all kinds of debris from guaranteeing the normal operating of back-end system to the impact of follow-up technology, simultaneously, concentrates on the undegradable object such as silt, suspended impurity and keeps apart in the first pond of equalizing basin, the regular centralized processing of being convenient for. The incoming sewage is retained, mixed and homogenized in the second regulating reservoir 2.
The sewage in the second regulating tank 2 enters the first anaerobic tank 3 through a water through hole at the upper part of the tail end of the second regulating tank 2. In the first anaerobic tank 3, the separation of the sediment and the suspended matters is further carried out, the sewage enters the second anaerobic tank 4 through water passing holes in the wall body between the first anaerobic tank 3 and the second anaerobic tank 4, an anaerobic bacteria bed is installed and configured in the second anaerobic tank 4, and the bacteria bed material can adopt conventional high-molecular elastic filler and a conventional installation method, and can also adopt other fillers. In the embodiment, reed straws are used as the anaerobic bacteria bed filler, and the specific method is that the harvested mature reed straws are kneaded and folded to form a doughnut shape, and the doughnut shape is filled and filled in the anaerobic pond II, and the filled reed straws are properly compacted, so that the porosity of the bacteria bed reaches 50-70%, and the normal water passing of the bacteria bed is ensured. A large number of bacterial films formed by various anaerobic microorganisms grow and attach on the surface of a reed rod filled in the bacterial bed, and when sewage enters the anaerobic bacterial bed, organic pollutant particles in the sewage are adsorbed and intercepted by the bacterial films, and a biochemical process mainly based on hydrolysis and acidification is carried out. The insoluble organic impurities in the sewage are converted into water-soluble organic matters, so that conditions are provided for the subsequent process.
Sewage enters the third anaerobic tank 5 through the water holes in the wall body between the second anaerobic tank 4 and the third anaerobic tank 5, and the water holes and the plastic grid net are arranged on the whole wall body between the second anaerobic tank 4 and the third anaerobic tank 5, so that the circulation of sewage can be ensured, and meanwhile, the sediment at the lower part of the second anaerobic tank 4 and the suspended matters at the upper part can be prevented from being continuously discharged. In the third anaerobic tank 5, sewage is retained for a certain time, homogenized, precipitated and separated from suspended matters, and then enters the distribution tank 6 through water holes in the upper part of the tank body.
The distribution tank 6 is a tank body specially arranged in the AO process sewage treatment system, and three water inlets are arranged in the tank body of the distribution tank 6 and are respectively as follows: a water inlet for receiving sewage of the third anaerobic tank 5, a water inlet for receiving return flow of the artificial wetland (a second return pipe 12), and a water inlet for receiving return flow of the sedimentation tank 8 (a first return pipe 10). Two sewage lifting pumps and a liquid level controller are arranged in the pool body of the distribution pool 6, and the two automatic floating ball water pumps are 1.1kw in the example. The distribution tank 6 has the main functions and effects of receiving the sewage of the anaerobic tank, the return sewage of the sedimentation tank 8 and the effluent after the advanced treatment of the artificial wetland, fully mixing and diluting the sewage in the distribution tank 6, ensuring the normal operation and the efficient utilization of the subsequent process, and simultaneously performing multiple times of circulating treatment on the sewage through the return flow to achieve the purpose of treating the effluent stably and reaching the standard. Two sewage lifting pumps (daily lifting water amount is about 3.8-4.5 times of daily treatment water amount of the system) are arranged in the distribution tank 6, a liquid level controller is arranged, power conditions can be provided for the self-flowing operation of the subsequent process through the lifting of the sewage lifting pumps, and simultaneously, through the control of the liquid level controller, tank body liquid levels which are low enough relative to the three tank bodies of the third anaerobic tank 5, the sedimentation tank 8 and the constructed wetland can be formed in the distribution tank 6, so that the backflow of the treated water of the constructed wetland and the sedimentation tank 8 and the inflow of the effluent of the anaerobic tank are ensured.
The sewage in the distribution tank 6 enters the aerobic tank 7 through a sewage lifting pump. In the good oxygen pond 7, install good oxygen pond 7 fungus beds and aeration equipment, 7 fungus beds of this example good oxygen pond material adopts polymer combination filler, and the filler is fixed on the steel filler frame, and the filler diameter: 10mm, pitch: 15mm, height: 1.3m, the bottom is 40cm away from the bottom of the tank, and the top is 30mm to the bottom of the top plate of the tank. Install aeration equipment, this example is micropore aeration pipe, and the tube spacing is 50cm, apart from the bottom of the pool height at the 6 cell bodies bottom in distribution tank: 15mm, and the tail end of the aeration device is connected with an aeration fan. In this example, a 1.1kw roots blower was used. The aerobic tank 7 grows on the bacterial bed and is attached with rich aerobic microbial bacterial membranes, so that the polluted organic matters in the sewage can be captured and absorbed, and are converted and degraded through biological metabolism, and the purpose of removing pollutants is achieved. In the process, the COD index of the sewage is greatly reduced, the ammonium nitrogen is converted into nitrate nitrogen to a great extent, and conditions are provided for the subsequent planting and irrigation of the artificial wetland and the tidal three-dimensional irrigation type seedbed (agricultural irrigation water generally requires that the COD is less than 100mg/l, and nitrogen elements are mainly nitrate nitrogen).
The sedimentation tank 8 is a terminal device of an AO process sewage treatment system, sewage enters the sedimentation tank 8 through a water outlet hole at the top end of the aerobic tank 7, the sewage is separated from the suspension in the sedimentation tank 8, part of the sewage flows back to the distributing tank 6 through the first return pipe 10 for circular treatment and dilution of the water entering the anaerobic tank, part of the sewage enters the artificial wetland through the wetland water inlet pipe for advanced treatment, and part of the sewage enters the tide type stereoscopic irrigation seedbed through a lifting pump in the sedimentation tank 8 for fertilization and irrigation of plants. The first return pipe 10, the wetland water inlet pipe and the irrigation water pump are provided with water quantity adjusting devices, including valve devices or other water flow control devices, so that the distribution of the effluent of the sedimentation tank 8 can be conveniently controlled. This example adopts the valve as water yield adjusting device, and the irrigation water pump is 0.15kw clear water pump, in addition, can increase sterilizing equipment according to irrigation needs or requirement between irrigation water pump and the three-dimensional irrigation type seedbed of morning and evening tides formula.
The tidal three-dimensional irrigation seedbed 15 is erected above the artificial wetland, the artificial wetland and the AO process sewage treatment system are both arranged in the integrated steel concrete tank body, and the integrated steel concrete tank body is positioned underground.
The artificial wetland comprises a plurality of substrate filling tanks 9, a water diversion tank 14 is communicated with the water inlet end and the water outlet end of any one substrate filling tank, an aeration device is arranged in the water diversion tank 14, a wetland substrate is filled in the substrate filling tanks 9, and the wetland substrate is a porous granular solid substrate. A substrate filling pool 9 and water distribution pools 14 at two ends of the substrate filling pool form a wetland unit, different wetland units can be combined in series or in parallel, the wetland unit at the tail end is provided with a water outlet and a second return pipe 12, part of the effluent of the wetland is discharged out of the system through a first water outlet pipe 13, and part of the effluent enters a water distribution pool 6 through the second return pipe 12 for circular treatment and dilution of the high-concentration sewage at the front end. The water passing wall on the water inlet side of the matrix filling pool 9 in the embodiment adopts a middle water inlet mode, the water passing wall on the water outlet side of the matrix filling pool 9 adopts a lower water outlet mode, precipitates and suspended matters are prevented from entering wetland matrix to cause wetland blockage, the wetland units adopt a series connection mode, and water flow flows in a snake shape.
The wetland substrate is generally a porous granular solid substrate. The common materials include volcanic rock, ceramsite, zeolite, calcium carbonate porous filter material, stone granule, etc. The calcium carbonate porous filter material and the volcanic rock mixed filter material with the grain size of 3-8mm are adopted in the method. The filling height of the matrix is 1.5m, and the stacking porosity of the matrix is 40-55% and the depth of the water body on the upper part of the matrix is 15-20 cm. According to the treatment requirements, an aeration device can be added in the diversion basin 14 to improve the dissolved oxygen level of the wetland and enhance the treatment efficiency of the wetland (the dissolved oxygen index is an important index of sewage purification capacity, the dissolved oxygen is high, and the water purification capacity is strong).
The artificial wetland is an artificial ecosystem, and biological communities including microorganisms, protozoa and aquatic plants are distributed, so that carbon and nitrogen in sewage can be effectively absorbed and degraded. The sewage can be subjected to physical filtration, chemical adsorption, biodegradation, pH value regulation, sterilization and harmful ion removal when passing through the constructed wetland, and the treated effluent is guaranteed to reach the standard. The example adopts an underflow and surface flow mixed wetland, and the wetland water body is planted with emergent aquatic plants: canna, iris, floating plants: copper cash grass, cotton rose hibiscus, watermifoil and the like. In addition, in the artificial wetland, aquatic plants with economic value can be planted, and certain economic benefit can be generated while pollutants are removed.
Tidal three-dimensional irrigation type seedbed is the comparatively advanced high-efficient facility farming equipment at present, we use the steel concrete cell body wall top of wetland cell body as the fulcrum, install the device in the upper portion of wetland cell body, utilize the water that obtains the processing of certain degree and satisfy the irrigation requirement through front-end system to carry out plant irrigation and fertilization, nutrient element such as nitrogen in can the make full use of sewage, phosphorus provides the essential nutrient of growth for the plant, guarantee the normal growth of plant, simultaneously, nitrogen, the phosphorus pollutant in the sewage has also been got rid of, in addition, in sewage treatment process, can release a large amount of carbon dioxide, endanger atmospheric environment, through the cultivation of plant, can absorb the carbon dioxide in the environment in a large number, carbon has obtained cyclic utilization, the purpose of carbon neutralization has been reached. In addition, the planting of the plants can generate certain economic benefits, so that the whole treatment system has environmental protection benefits and economic benefits.
The greenhouse 16 is provided with an air heater, a ventilation fan and a temperature control switch, and the air heater and the ventilation fan are respectively electrically connected with the temperature control switch. A solar power generation board is further laid on the top of the greenhouse 16, a storage battery is arranged in the greenhouse 16, and the solar power generation board, the air heater and the ventilation fan are respectively and electrically connected with the storage battery. The greenhouse 16 can protect the whole system, and especially can keep warm and increase the temperature under low temperature conditions.
Both sewage treatment and plant cultivation are biological processes that require good and suitable temperature environments, especially in northern cold regions where greenhouses 16 are essential facilities for facility agriculture. The temperature control switch can automatically turn on and off the air heater or the ventilation fan according to the temperature in the greenhouse 16, the temperature in the greenhouse 16 can be raised by turning on the air heater, and the temperature in the greenhouse 16 can be lowered by turning on the ventilation fan. Generally, there are a solar glass greenhouse 16, a sunlight plate greenhouse 16, a vinyl house, etc. The embodiment adopts a sunlight glass greenhouse 16, which comprises a main steel frame, a hollow laminated glass wall, a heat-insulating wall body, a sunlight plate tip, a rain gutter, an automatic skylight, a sunshade net and the like. In consideration of the cold climate characteristics in winter in the north, east, west and north side walls are adopted, and a 24cm brick wall and a 10mm polystyrene board heat preservation wall are adopted, so that the proper temperature of the winter system is ensured.
The comprehensive domestic sewage treatment system 100 of the embodiment organically couples four units with independent functions or treatment efficiency through the greenhouse 16, the artificial wetland, the AO process sewage treatment system and the tidal three-dimensional irrigation seedbed 15, so that the treatment efficiency of sewage is effectively improved; simultaneously realizes the resource utilization of the sewage and the carbon neutralization to reach the standard; the operation process of the whole system is not only a process for efficiently treating sewage, but also a process for efficiently producing facility agriculture. In the process, the carbon, nitrogen, phosphorus, water and other substance elements in the sewage are recycled, so that the purposes of resource utilization of the sewage and standard reaching of carbon neutralization are achieved; the application of the domestic sewage comprehensive treatment system 100 of the embodiment can improve the utilization rate of land and the utilization rate of engineering facilities, and not only can realize environmental benefits, but also can generate economic benefits.
It should be noted that, in the above-mentioned solution of the integrated domestic sewage treatment system 100 of this embodiment, the technical solution of the present invention is described only by using the specific greenhouse 16, artificial wetland and AO-process sewage treatment system, in the prior art, the greenhouse 16, artificial wetland and AO-process sewage treatment system are all of various types, the protection range of the integrated domestic sewage treatment system 100 of the present invention is not limited by this embodiment, and the specific technical solution obtained after simple modification and replacement of the greenhouse 16, artificial wetland or AO-process sewage treatment system in the integrated domestic sewage treatment system 100 of this embodiment should be within the protection range of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides a domestic sewage integrated processing system which characterized in that: the greenhouse comprises a greenhouse, an artificial wetland, an AO (anaerobic-anoxic-oxic) process sewage treatment system and a tidal three-dimensional irrigation seedbed, wherein the artificial wetland, the AO process sewage treatment system and the tidal three-dimensional irrigation seedbed are all arranged in the greenhouse, a water inlet of the artificial wetland and a water inlet of the tidal three-dimensional irrigation seedbed are respectively communicated with a water outlet of the AO process sewage treatment system, an air heater, an air exchange fan and a temperature control switch are arranged in the greenhouse, and the air heater and the air exchange fan are respectively electrically connected with the temperature control switch.
2. The integrated domestic sewage treatment system according to claim 1, wherein: the tidal three-dimensional irrigation seedling bed is arranged above the artificial wetland, the artificial wetland and the AO process sewage treatment system are both arranged in an integrated steel concrete tank body, and the integrated steel concrete tank body is positioned underground.
3. The integrated domestic sewage treatment system according to claim 1, wherein: the artificial wetland comprises a plurality of substrate filling tanks, a water diversion tank is communicated with the water inlet end and the water outlet end of any one of the substrate filling tanks, an aeration device is arranged in the water diversion tank, wetland substrates are filled in the substrate filling tanks, and the wetland substrates are porous granular solid substrates.
4. The integrated domestic sewage treatment system according to claim 3, wherein: the different matrix packing cells are connected in parallel or in series.
5. The integrated domestic sewage treatment system according to claim 1, wherein: the AO process sewage treatment system comprises an adjusting tank, an anaerobic tank, a water distribution tank, an aerobic tank and a sedimentation tank which are sequentially communicated, wherein a water outlet of the sedimentation tank is communicated with the water distribution tank through a first water return pipe, a water outlet of the sedimentation tank is communicated with the artificial wetland through a second water inlet pipe, a water outlet of the artificial wetland is communicated with the water distribution tank through a second return pipe, and a water outlet of the sedimentation tank is communicated with a water inlet of the tide type three-dimensional irrigation seedbed through a third water inlet pipe; a first water inlet pipe is arranged on a water inlet of the adjusting tank, and a first water outlet pipe is arranged on a water outlet of the artificial wetland.
6. The integrated domestic sewage treatment system according to claim 5, wherein: the regulating tank comprises a first regulating tank and a second regulating tank, and a water inlet of the second regulating tank is communicated with a water outlet of the first regulating tank; the anaerobic tank comprises a first anaerobic tank, a second anaerobic tank and a third anaerobic tank which are sequentially communicated; the water outlet of the second regulating tank is communicated with the water inlet of the first anaerobic tank; and the water outlet of the third anaerobic tank is communicated with the water inlet of the distribution tank.
7. The integrated domestic sewage treatment system according to claim 5, wherein: and the third water inlet pipe is provided with a regulating valve and an irrigation water pump.
8. The integrated domestic sewage treatment system according to claim 1, wherein: the solar energy power generation board is further paved at the top of the greenhouse, a storage battery is arranged in the greenhouse, and the solar energy power generation board, the air heater and the ventilation fan are respectively electrically connected with the storage battery.
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| CN202110934562.3A CN113480108A (en) | 2021-08-16 | 2021-08-16 | Domestic sewage comprehensive treatment system |
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| CN202110934562.3A CN113480108A (en) | 2021-08-16 | 2021-08-16 | Domestic sewage comprehensive treatment system |
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