CN114804521A - Low-cost environment-friendly domestic sewage treatment system - Google Patents
Low-cost environment-friendly domestic sewage treatment system Download PDFInfo
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- CN114804521A CN114804521A CN202210429828.3A CN202210429828A CN114804521A CN 114804521 A CN114804521 A CN 114804521A CN 202210429828 A CN202210429828 A CN 202210429828A CN 114804521 A CN114804521 A CN 114804521A
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- C—CHEMISTRY; METALLURGY
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a low-cost environment-friendly domestic sewage treatment system which comprises a grid water collecting tank, an adjusting tank, a hydrolysis tank, an STBBR tank, a microfiltration plant unit, a composite wetland unit, a clean water tank and a sludge tank, wherein the input end of the grid water collecting tank is connected with a domestic sewage inlet pipe, and the output end of the grid water collecting tank is connected with the adjusting tank, the hydrolysis tank, the STBBR tank, the microfiltration plant unit, the composite wetland unit and the clean water tank in sequence. The invention adopts advanced, mature and reliable biological biochemical treatment process, so that the BOD in the sewage can be efficiently removed 5 、SS、CODCr、NH 3 N and other pollutants, biological filtration, once-lifting four-time backflow and pressure sludge discharge technologies are added to ensure that various water quality indexes in the treated effluent meet the requirements of planting, recycling and discharge, so that the investment and the occupied area are reduced as much as possible, and the overall design layout is reasonable; the advantages of the process technology are fully exerted, the treatment cost of sewage and sludge is reduced to the maximum extent, the STBBR ecological sewage treatment process does not add chemicals, and the operation cost is low.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a low-cost environment-friendly domestic sewage treatment system.
Background
Domestic sewage is wastewater discharged in daily life of residents and mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like. The pollutants contained in the domestic sewage are mainly organic matters (such as protein, carbohydrate, fat, urea, ammonia nitrogen and the like) and a large amount of pathogenic microorganisms (such as parasitic ova, enteroinfectious viruses and the like). Organic matters existing in domestic sewage are extremely unstable and easily decomposed to generate offensive odor. Bacteria and pathogens propagate in large quantities by taking organic matters in domestic sewage as nutrition, and can cause epidemic of infectious diseases. Therefore, domestic sewage must be treated before being discharged.
The existing sewage treatment is generally carried out by an AAO process, which is a short name of an anaerobic-anoxic-aerobic combined process and is composed of three sections of biological treatment devices. The difference between the single-stage AO process and the single-stage AO process lies in that an anaerobic reactor is arranged at the front stage, and aims to degrade and remove part of refractory organic matters in the wastewater through an anaerobic process, further improve the biodegradability of the wastewater, provide a carbon source suitable for a denitrification process for a subsequent anoxic stage, and finally achieve the purpose of efficiently removing COD, BOD, N and P. The existing domestic AAO treatment process has high cost and poor sewage treatment effect.
Disclosure of Invention
The invention aims to provide a low-cost environment-friendly domestic sewage treatment system to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a low-cost environment-friendly domestic sewage treatment system, includes grid catch basin, equalizing basin, hydrolysis tank, STBBR pond, micro-filtration plant unit, compound wetland unit, clean water basin and sludge impoundment, domestic sewage advances the pipe is connected to the input of grid catch basin, the output of grid catch basin is connected and is connected equalizing basin, hydrolysis tank, STBBR pond, micro-filtration plant unit, compound wetland unit and clean water basin in proper order, the output and the sludge impoundment of compound wetland unit are connected.
In a preferred embodiment, the grid water collecting tank is used for intercepting large-particle pollutants and large-size fiber aggregates in domestic sewage, an output port of the grid water collecting tank is connected with a water inlet port of the regulating tank through a water pump, and a filtering grid in the grid water collecting tank is periodically cleaned or replaced, so that the cleaning effect of the grid water collecting tank is improved.
In a preferred embodiment, the regulating reservoir is used for regulating the sewage amount, the flow of the sewage in the regulating reservoir is started according to the sewage amount and the water quality condition in different time intervals, the output port of the regulating reservoir is connected with the water inlet port of the hydrolysis reservoir through a water pump, the sewage quality condition difference is large because the sewage amount in each time interval of the domestic sewage every day is different, and the regulating reservoir has to be set to play the roles of regulating the sewage amount and balancing the water quality in order to ensure that the sewage treatment process is continuously and uniformly carried out.
In a preferred embodiment, the hydrolysis pool utilizes the hydrolysis acidification principle of anaerobic reaction to decompose macromolecular organic pollutants which are difficult to aerobiont treatment in sewage, in the process of digesting BOD, the macromolecular organic pollutants which are difficult to degrade are hydrolyzed and broken chains and are degraded into low molecular organic acids which are easy to aerobiont treatment, the output port of the hydrolysis pool is connected with the water inlet port of the STBBR pool through a water pump, sewage stays in the hydrolysis pool for 2-4h to play an anaerobic role, the biodegradability of the sewage is greatly improved, water flow stirs sludge in the device through self-flow, anaerobic digestion is more sufficient, and the sludge load is improved.
In a preferred embodiment, the STBBR tank decomposes pollutants in sewage by using aerobic microorganisms to remove nitrogen and phosphorus in the sewage, an aeration mechanism is arranged in the STBBR tank, the aerobic microorganisms have a better sewage treatment effect under the action of the aeration mechanism, an output port of the STBBR tank is connected with a water inlet port of a microfiltration plant unit through a water pump, a large amount of microorganisms grow on fillers suspended in the tank body of the sewage treated by an anaerobic adjusting tank under the aeration condition, the aerobic microorganisms are subjected to oxidative decomposition to remove a large amount of pollutants in the water, and meanwhile, aerobic-anaerobic alternate treatment is formed under the action of a reflux pump, so that the denitrification and dephosphorization effects are achieved, and the residual sludge is discharged to the sludge tank by a sludge discharge pump.
In a preferred embodiment, the nitrogen phosphorus of aquatic is absorbed to the developed root system of micro-filtration plant unit utilization aquatic plant, filters and holds back tiny particle, the output port of micro-filtration plant unit passes through the water pump and is connected with the inlet port of compound wetland unit, the micro-filtration plant unit passes through the backwash pump and is connected with the STBBR pond, utilizes the nitrogen phosphorus of the developed root system absorption aquatic of aquatic plant, filters and holds back tiny particle, provides oxygen and beautiful environment for whole greenhouse system simultaneously.
In a preferred embodiment, the composite wetland unit is used for filtering and intercepting suspended solids and aged living membranes in sewage, the water outlet port of the composite wetland unit is connected with a clean water tank through a water pump, the clean water tank is used for vegetables, melons and fruits, traditional Chinese medicines or ornamental fish, the water treated by the composite wetland unit can reach the water outlet standard, and the outlet water is used for supplying water to the vegetables, melons and fruits, traditional Chinese medicines or ornamental fish, so that the sewage treatment wastewater is applied to a fish-vegetable symbiotic system.
In a preferred embodiment, an exhaust pipe is arranged inside the regulating reservoir and the STBBR reservoir, a fan is arranged on the exhaust pipe, and the arrangement of the fan and the exhaust pipe can facilitate the circulation of air inside the regulating reservoir and the STBBR reservoir.
In a preferred embodiment, the adjusting tank, the hydrolysis tank, the STBBR tank and the composite wetland unit are connected with a feeding port of a sludge tank through a sludge pump, the sludge tank collects bottom sludge of each process, sludge is further concentrated in the tank body, pressure sludge is discharged for biochemical treatment, supernatant liquid flows back to the adjusting tank, and concentrated sludge is periodically pumped away by a tank car.
In a preferred embodiment, the supernatant of the sludge tank is communicated with the STBBR tank through a water pump, so that the supernatant of the sludge tank can be conveniently refluxed.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts advanced, mature and reliable biological biochemical treatment process, so that the BOD in the sewage can be efficiently removed 5 、SS、CODCr、NH 3 Biological filtration, once-lifting four times of backflow and pressure sludge discharge technologies are added to the pollutants such as-N and the like to ensure various water quality indexes in the treated effluentThe requirements of planting, recycling and discharging are met, the investment and the occupied area are reduced as much as possible, and the overall design layout is reasonable; the advantages of the process technology are fully exerted, the treatment cost of sewage and sludge is reduced to the maximum extent, the STBBR ecological sewage treatment process does not add chemicals, the operation is stable, and the operation cost is low;
2. the invention utilizes the hydrodynamic force source in the sewage treatment process as the water nutrient source for seed culture, and can plant 9 types of pollution-free vegetables, melons and fruits, traditional Chinese medicinal materials, ornamental fishes with high added values and the like to realize profit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a stacked air-cooled fin structure according to the present invention;
in the figure: 1, a grid water collecting tank; 2, adjusting a pool; 3, a hydrolysis tank; 4STBBR pool; 5, a microfiltration plant unit; 6, a composite wetland unit; 7, a clean water tank; 8, a sludge tank; 9, a water pump; 10, a fan; 11 a sludge pump; 12 reflux pump.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides a low-cost environment-friendly domestic sewage treatment system, which comprises a grid water collecting tank 1, an adjusting tank 2, a hydrolysis tank 3, an STBBR tank 4, a microfiltration plant unit 5, a composite wetland unit 6, a clean water tank 7 and a sludge tank 8, wherein the input end of the grid water collecting tank 1 is connected with a domestic sewage inlet pipe, the output end of the grid water collecting tank 1 is connected with the adjusting tank 2, the hydrolysis tank 3, the STBBR tank 4, the microfiltration plant unit 5, the composite wetland unit 6 and the clean water tank 7 in sequence, and the output end of the composite wetland unit 6 is connected with the sludge tank 8.
In a preferred embodiment, the grid water collecting tank 1 is used for intercepting large-particle pollutants and large-size fiber aggregates in domestic sewage, an output port of the grid water collecting tank 1 is connected with a water inlet port of the regulating tank 2 through a water pump 9, and a filtering grid in the grid water collecting tank 1 is periodically cleaned or replaced, so that the cleaning effect of the grid water collecting tank is improved.
In a preferred embodiment, the adjusting tank 2 is used for adjusting the amount of sewage, the flow rate of the sewage in the adjusting tank 2 is started according to the amount of sewage and the water quality conditions in different time periods, the output port of the adjusting tank 2 is connected with the water inlet port of the hydrolysis tank 3 through the water pump 9, the difference of the water quality conditions of the sewage is large because the amount of sewage in each time period of the domestic sewage is different, and the adjusting tank is required to be set to adjust the amount of sewage and balance the water quality in order to ensure that the sewage treatment process is continuously and uniformly performed.
In a preferred embodiment, the hydrolysis pool 3 decomposes macromolecule organic pollutants which are difficult to be aerobically treated in sewage by using the hydrolysis acidification principle of anaerobic reaction, in the process of digesting BOD, the macromolecule and the macromolecule organic pollutants which are difficult to be degraded are hydrolyzed and broken chains and are degraded into low-molecular organic acids which are easy to be aerobically treated, the output port of the hydrolysis pool 3 is connected with the water inlet port of the STBBR pool 4 through a water pump 9, sewage stays in the hydrolysis pool for 2-4h to play an anaerobic role, so that the biodegradability of the sewage is greatly improved, water flow stirs sludge in the device through self-flow, anaerobic digestion is carried out more fully, and the sludge load is improved.
In a preferred embodiment, the STBBR tank 4 decomposes pollutants in sewage by using aerobic microorganisms to remove nitrogen and phosphorus in the sewage, an aeration mechanism is arranged inside the STBBR tank 4, the aerobic microorganisms have a better sewage treatment effect under the action of the aeration mechanism, an output port of the STBBR tank 4 is connected with a water inlet port of the microfiltration plant unit 5 through a water pump 9, the sewage treated by the anaerobic adjusting tank grows a large amount of microorganisms in fillers suspended in the tank body under the aeration condition, and a large amount of pollutants in the water are removed through aerobic microorganism oxidative decomposition, and meanwhile, aerobic and anaerobic alternate treatment is formed under the action of a reflux pump, so that the nitrogen and phosphorus removal effect is achieved, and the residual sludge is discharged to the sludge tank by a sludge discharge pump.
In a preferred embodiment, the nitrogen phosphorus that the developed root system of micro-filtration plant unit 5 utilized aquatic plant absorbed aquatic filters and holds back the tiny granule, the output port of micro-filtration plant unit 5 passes through water pump 9 and is connected with the inlet port of compound wetland unit 6, micro-filtration plant unit 5 passes through backwash pump 12 and is connected with STBBR pond 4, utilizes the nitrogen phosphorus that the developed root system of aquatic plant absorbed aquatic, filters and holds back the tiny granule, provides oxygen and beautiful environment for whole greenhouse system simultaneously.
In a preferred embodiment, the composite wetland unit 6 is used for filtering and retaining suspended solids and aged living membranes in sewage, the water outlet port of the composite wetland unit 6 is connected with a clean water tank 7 through a water pump 9, and the clean water tank 7 is used for vegetables, melons and fruits, traditional Chinese medicines or ornamental fishes.
In a preferred embodiment, an exhaust pipe is arranged inside the adjusting tank 2 and the STBBR tank 4, and a fan 10 is arranged on the exhaust pipe.
In a preferred embodiment, the adjusting tank 2, the hydrolysis tank 3, the STBBR tank 4 and the composite wetland unit 6 are connected with a feeding port of a sludge tank 8 through a sludge pump 11, the sludge tank collects bottom sludge of each process, the sludge is further concentrated in the tank body, the sludge is discharged under pressure and is regenerated, supernatant liquid flows back to the adjusting tank, and the concentrated sludge is periodically pumped away by a tank car.
In a preferred embodiment, the supernatant of the sludge tank 8 is communicated with the STBBR tank 4 by a water pump 9.
The working principle of the invention is as follows: inputting domestic sewage to be treated into a grid water collecting tank 1 through a sewage pipeline, filtering large-particle pollutants and large-size fiber aggregates in the sewage by using a grid in the grid water collecting tank 1, enabling the filtered sewage to flow into an adjusting tank 2 under the action of a water pump 9, opening the flow of the internal sewage by the adjusting tank 2 according to the sewage quantity and the water quality condition in different periods, enabling the sewage in the adjusting tank 2 to enter a hydrolysis tank 3, enabling the sewage to stay for 3 hours in the hydrolysis tank 3, decomposing macromolecular organic pollutants which are difficult to be aerobiotreated in the sewage by the hydrolysis acidification principle of anaerobic reaction in the hydrolysis tank 3, hydrolyzing and breaking chains of the macromolecular organic pollutants which are difficult to be degraded into low-molecular organic acids which are easy to be aerobiotreated in the BOD digestion process, greatly improving the biodegradability of the sewage, and stirring the sludge in the device by the flow of the water flow, make anaerobic digestion go on more abundant, improve the mud load, sewage after the hydrolysis enters into STBBR pond 4 under the effect of water pump 9, and STBBR pond 4 utilizes aerobic microorganism to decompose the pollutant in the sewage, removes nitrogen, phosphorus in the sewage, STBBR pond 4 is inside to be provided with aeration mechanism, and aerobic microorganism is better to sewage treatment effect under aeration mechanism's effect, and sewage that has handled through the anaerobic adjusting tank is under the aeration condition, and the filler of suspension in the cell body grows a large amount of microorganisms, through aerobic microorganism oxidative decomposition, gets rid of a large amount of pollutants in the water, simultaneously under the effect of backwash pump 12, forms aerobic and anaerobic alternate treatment to reach nitrogen and phosphorus removal effect, and surplus sludge is arranged to the sludge impoundment by the dredge pump, and sewage after STBBR pond 4 handles enters into micro-filtration plant unit 5, and micro-filtration plant unit 5 utilizes the root system of aquatic plant to absorb nitrogen and phosphorus in the water, filtering and intercepting tiny particles, enabling the sewage treated by the microfiltration plant unit 5 to enter the composite wetland unit 6, enabling the composite wetland unit 6 to filter and intercept suspended solids and aged living membranes in the sewage, enabling the water treated by the composite wetland unit 6 to reach a use standard and enter the clean water tank 7, enabling the clean water tank 7 to be used for vegetables, melons and fruits, traditional Chinese medicines or ornamental fishes, enabling the sludge tank 8 to collect bottom mud of each process, further concentrating the sludge in the tank body, discharging the sludge under pressure for biochemical treatment, enabling the supernatant to flow back to the regulating tank, regularly pumping away the concentrated sludge by using a tank car, and cleaning the sludge for at least 5 years.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a low-cost environment-friendly domestic sewage treatment system which characterized in that: including grid catch basin (1), equalizing basin (2), pond (3), STBBR pond (4), microfiltration plant unit (5), compound wetland unit (6), clean water basin (7) and sludge impoundment (8) hydrolyze, domestic sewage advances the pipe is connected to the input of grid catch basin (1), the output of grid catch basin (1) is connected and is connected equalizing basin (2), pond (3), STBBR pond (4), microfiltration plant unit (5), compound wetland unit (6) and clean water basin (7) hydrolyze in proper order, the output and the sludge impoundment (8) of compound wetland unit (6) are connected.
2. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: the grid water collecting tank (1) is used for intercepting large-particle pollutants and large-size fiber aggregates in domestic sewage, and an output port of the grid water collecting tank (1) is connected with a water inlet port of the regulating tank (2) through a water pump (9).
3. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: the adjusting tank (2) is used for adjusting the sewage amount, the flow of the sewage in the adjusting tank (2) is started according to the sewage amount and the water quality condition in different time periods, and the output port of the adjusting tank (2) is connected with the water inlet port of the hydrolysis tank (3) through a water pump (9).
4. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: the hydrolysis tank (3) decomposes macromolecular organic pollutants which are difficult to aerobiont treatment in sewage by utilizing the hydrolysis acidification principle of anaerobic reaction, hydrolyzes and breaks chains of the macromolecular organic pollutants which are difficult to degrade into low molecular organic acid which is easy to aerobiont treatment in the process of digesting BOD, and the output port of the hydrolysis tank (3) is connected with the water inlet port of the STBBR tank (4) through a water pump (9).
5. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: STBBR pond (4) utilize the aerobic microorganism to decompose the pollutant in the sewage, remove nitrogen, phosphorus in the sewage, STBBR pond (4) inside is provided with aeration mechanism, and aerobic microorganism is better to sewage treatment effect under aeration mechanism's effect, the output port in STBBR pond (4) passes through water pump (9) and is connected with the water inlet port of micro-filtration plant unit (5).
6. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: the nitrogen and phosphorus in the water are absorbed by the developed root system of the aquatic plant in the microfiltration plant unit (5), tiny particles are intercepted and filtered, the output port of the microfiltration plant unit (5) is connected with the water inlet port of the composite wetland unit (6) through a water pump (9), and the microfiltration plant unit (5) is connected with the STBBR pool (4) through a reflux pump (12).
7. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: the composite wetland unit (6) is used for filtering and intercepting suspended solids and aged living membranes in sewage, the water outlet port of the composite wetland unit (6) is connected with a clean water tank (7) through a water pump (9), and the clean water tank (7) is used for vegetables, melons and fruits, traditional Chinese medicines or ornamental fishes.
8. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: and an exhaust pipe is arranged in the adjusting tank (2) and the STBBR tank (4), and a fan (10) is arranged on the exhaust pipe.
9. The low-cost environment-friendly domestic sewage treatment system according to claim 1, wherein: the adjusting tank (2), the hydrolysis tank (3), the STBBR tank (4) and the composite wetland unit (6) are connected with a feed port of the sludge tank (8) through a sludge pump (11).
10. The low-cost environment-friendly domestic sewage treatment system according to claim 9, wherein: the supernatant of the sludge tank (8) is communicated with the STBBR tank (4) through a water pump (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210429828.3A CN114804521A (en) | 2022-04-22 | 2022-04-22 | Low-cost environment-friendly domestic sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210429828.3A CN114804521A (en) | 2022-04-22 | 2022-04-22 | Low-cost environment-friendly domestic sewage treatment system |
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| KR100661815B1 (en) * | 2006-01-09 | 2006-12-27 | 오영한 | The sewage treatment system |
| CN101948214A (en) * | 2010-08-31 | 2011-01-19 | 浙江博世华环保科技有限公司 | Ecological greenbelt treatment process and system for treating rural domestic sewage |
| CN107445415A (en) * | 2017-09-28 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of rural domestic sewage treatment system |
| WO2019114743A1 (en) * | 2017-12-13 | 2019-06-20 | 中国环境科学研究院 | Device and method for controlling pollutants during cyclic utilization of water resources in metal mines |
| CN113429064A (en) * | 2021-06-03 | 2021-09-24 | 泉州市安平碧海环保科技有限公司 | Buried AO process and high-load dephosphorization wetland system |
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2022
- 2022-04-22 CN CN202210429828.3A patent/CN114804521A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100661815B1 (en) * | 2006-01-09 | 2006-12-27 | 오영한 | The sewage treatment system |
| CN101948214A (en) * | 2010-08-31 | 2011-01-19 | 浙江博世华环保科技有限公司 | Ecological greenbelt treatment process and system for treating rural domestic sewage |
| CN107445415A (en) * | 2017-09-28 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of rural domestic sewage treatment system |
| WO2019114743A1 (en) * | 2017-12-13 | 2019-06-20 | 中国环境科学研究院 | Device and method for controlling pollutants during cyclic utilization of water resources in metal mines |
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Application publication date: 20220729 |