CN110683645A - Domestic sewage treatment system and treatment method - Google Patents
Domestic sewage treatment system and treatment method Download PDFInfo
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- CN110683645A CN110683645A CN201911063811.5A CN201911063811A CN110683645A CN 110683645 A CN110683645 A CN 110683645A CN 201911063811 A CN201911063811 A CN 201911063811A CN 110683645 A CN110683645 A CN 110683645A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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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
- 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
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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Abstract
The application discloses a domestic sewage treatment system and a treatment method, and relates to the technical field of environmental management. The domestic sewage treatment system comprises a sewage collecting device, a treatment device, a water distribution device and a garden leaching device which are connected in sequence; the treatment device is used for carrying out innocent treatment on the sewage; the water distribution device is used for diluting the sewage after the harmless treatment and irrigating the sewage in a garden through the garden leaching device. The domestic sewage treatment system can effectively collect and purify domestic sewage, realize resource utilization and reduce rural pollution discharge.
Description
Technical Field
The application relates to the technical field of environmental management, in particular to a domestic sewage treatment system and a treatment method.
Background
Rural economy develops rapidly, and peasants' living standard is very improved, but rural environmental construction and economic development are asynchronous, and the water environment pollution problem is especially serious among them. Untreated domestic sewage is discharged at will, so that the water quality of ditches and ponds blackens and becomes smelly, mosquitoes breed, the rural living environment is affected, the physical health of residents is threatened, and meanwhile, the pollution of drinking water sources and the eutrophication of lakes and reservoirs can be caused.
The method is influenced by factors such as scattered rural living, large difference of living conditions and living habits, inconsistent collection and treatment measures, frequent variation of seasonal differences of population and the like, and rural domestic sewage discharge has the characteristics of scattered discharge, complex water quality and seasonal load difference, so that rural water environment pollution is random, scattered, complex and seasonal, and effective source interception, prevention, control and treatment are difficult to obtain.
Disclosure of Invention
The application provides a domestic sewage treatment system and a domestic sewage treatment method, which can effectively collect and purify domestic sewage, realize the on-site consumption and resource utilization of the domestic sewage and reduce the rural pollution discharge.
The first aspect provides a domestic sewage treatment system, which comprises a sewage collecting device, a treatment device, a water distribution device and a garden leaching device which are sequentially connected; the treatment device is used for carrying out innocent treatment on the sewage; the water distribution device is used for diluting the sewage after the harmless treatment and irrigating the sewage in a garden through the garden leaching device.
Above-mentioned technical scheme, domestic sewage treatment system can effectively collect and purify domestic sewage to use the domestic sewage after purifying for garden irrigation, for rural resident's life facilitates, accords with peasant living habits, realizes resource utilization, reduces rural pollutant discharge, suitable using widely in rural environmental control.
With reference to the first aspect, in a first possible implementation manner of the first aspect of the present application, the sewage collection device includes a solid-liquid separation device and a sewage collection pipeline; the sewage collecting pipeline is connected with the solid-liquid separation device, and a height difference is formed between the water inlet end and the water outlet end of the sewage collecting pipeline.
Above-mentioned technical scheme, sewage collection device carries out preliminary solid-liquid separation to sewage through solid-liquid separation equipment to obtain liquid sewage and carry out next processing step. The sewage is collected and is had the difference in height between the end of intaking and the play water end of pipeline, can realize the spontaneous collection that converges of sewage, need not the power equipment drive, and the management is maintained simply and conveniently, saves the cost.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect of the present application, the solid-liquid separation device includes an oil separation tank.
Above-mentioned technical scheme, solid-liquid separation equipment includes the oil interceptor, can handle to the more sewage type that contains oil dirt such as peasant family happy, prevents that the greasy dirt from blockking up.
With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect of the present application, the treatment device includes an anaerobic tank, an anoxic tank, and an aerobic tank, which are sequentially communicated; the anaerobic tank is connected with the solid-liquid separation device, and the aerobic tank is connected with the water distribution device.
According to the technical scheme, the domestic sewage is purified through the anaerobic tank, the anoxic tank and the aerobic tank which are sequentially communicated. The anaerobic tank and the anoxic tank are of a closed structure, an anaerobic environment and an anoxic environment are formed inside the anaerobic tank and the anoxic tank, organic matters in the sewage are fermented and decomposed, and the aerobic tank is of a semi-closed structure. The anaerobic tank has the main functions of releasing phosphorus and ammoniating part of organic matters; the primary function of the anoxic tank is denitrification, nitrate nitrogen is sent from the aerobic reactor through internal circulation, and the amount of circulating mixed liquid is large. The aerobic tank, a reaction unit, is multifunctional, and BOD (biochemical oxygen Demand) removal, nitrification, phosphorus absorption, and the like are performed therein.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect of the present application, the anaerobic tank, the anoxic tank, and the aerobic tank are all provided with a sewage disposal port, and the aerobic tank is provided with a ventilation port and an aeration device.
Above-mentioned technical scheme sets up the clear dirty mouth and is convenient for clear up or take the fermentation liquid dung. The aerobic tank is of a semi-closed structure, and is also provided with a ventilation opening and an aeration device, wherein the aeration device adopts wind power micro-aeration, so that an aerobic environment can be provided for microbial fermentation in the aerobic tank, and the effects of aerobic fermentation and deodorization are achieved.
With reference to the third possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect of the present application, the anaerobic tank, the anoxic tank, and the aerobic tank are sequentially communicated through the diversion partition plate, and the anaerobic tank is internally provided with a microorganism fixing device.
According to the technical scheme, the anaerobic tank, the anoxic tank and the aerobic tank are communicated through the diversion baffle plate in sequence, so that domestic sewage can flow conveniently. The microorganism fixing device is convenient for microorganism adhesion and provides a host environment for the fermentation microorganisms.
With reference to the third possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect of the present application, the water distribution device includes a water distribution tank and a filter; the water distribution tank is connected with the aerobic tank, and a first valve is arranged between the water distribution tank and the aerobic tank; the distribution tank is connected with the filter, and a second valve is arranged between the distribution tank and the filter.
According to the technical scheme, after the domestic sewage is subjected to harmless treatment for a certain time, the first valve is opened, so that the harmless treated domestic sewage is finally conveyed into the distribution tank to be stored for later use. When the treated domestic sewage needs to be used, the second valve is opened, so that the water in the water distribution tank is conveyed out after being filtered by the filter.
With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect of the present application, the domestic sewage treatment system further includes a reservoir, where the reservoir is used for collecting rainwater; a filtering device is arranged in the reservoir; the reservoir is connected with the distribution pool, and a third valve is arranged between the reservoir and the distribution pool; the height difference exists between the water storage tank and the distribution tank.
Above-mentioned technical scheme, domestic sewage still includes the cistern, and the cistern is used for receiving the rainwater, mixes the dilution with the domestic sewage after innocent treatment in carrying the distributing reservoir through the rainwater after will filtering, can realize the effective collection of rainwater and the complete consumption purification treatment of sewage, and environmental protection more, resource utilization rate is high for domestic sewage after the innocent treatment can be used as the liquid fertilizer on the spot to consume. The height difference is formed between the water storage tank and the distribution tank, so that rainwater can flow into the distribution tank spontaneously, additional power equipment is not needed for driving, the management and maintenance are simple and convenient, and the cost is saved.
With reference to the sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect of the present application, the garden leaching device includes an anti-seepage device, a nutrient matrix filler, and an irrigation pipe network; the anti-seepage device is internally provided with a nutrient matrix filler, the irrigation pipe network is connected with the filter and is used for irrigating the nutrient matrix filler; the nutrient medium filler is prepared from vegetable garden soil, zeolite, furnace slag, rice husk and fly ash in proportion.
According to the technical scheme, the collected rainwater and the domestic sewage subjected to harmless treatment are fully mixed in the water distribution tank to form the liquid fertilizer, vegetables are planted in the nutrient matrix filler in the anti-seepage device, the irrigation pipe network is laid to convey the mixed liquid fertilizer to the nutrient matrix filler, the anti-seepage device is used for preventing the liquid fertilizer from flowing out, and the vegetables absorb nutrient substances in the liquid fertilizer so as to achieve the effect of purifying water quality, so that the domestic sewage is finally purified to be discharged to the nature in a pollution-free manner through the domestic sewage treatment system.
In a second aspect, a treatment method for a domestic sewage treatment system is provided, where the domestic sewage treatment system is the domestic sewage treatment system in the first aspect or any one of the possible implementation manners of the first aspect; the processing method comprises the following steps:
collecting rural domestic sewage in a centralized manner through a sewage collecting device;
carrying out harmless treatment on the domestic sewage collected in the sewage collecting device through a treatment device;
the method comprises the following steps of keeping a water storage pool and a water distribution pool closed, keeping the water distribution pool and a filter closed, keeping a treatment device communicated with the water distribution pool so as to enable sewage subjected to harmless treatment to enter the water distribution pool, wherein the water distribution device comprises the water distribution pool and the filter, the water distribution pool is connected with the filter, a second valve is arranged between the water distribution pool and the filter, the water storage pool is used for collecting rainwater, a filtering device is arranged in the water storage pool, the water storage pool is connected with the water distribution pool, and a third valve is arranged between the water storage pool and;
keeping the treatment device and the distribution pool closed, keeping the distribution pool and the filter closed, and keeping the reservoir and the distribution pool communicated so that rainwater in the reservoir enters the distribution pool to dilute sewage subjected to harmless treatment;
the water storage pool and the distribution pool are kept closed, the treatment device and the distribution pool are kept closed, and the distribution pool and the filter are kept communicated to output diluted sewage which is subjected to harmless treatment.
Above-mentioned technical scheme can carry out domestic sewage's processing high-efficiently, and operation method is simple convenient, easily hands.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic view of a domestic sewage treatment system in a first perspective in an alternative embodiment of the present application;
FIG. 2 is a schematic view of a domestic sewage treatment system in a second perspective according to an alternative embodiment of the present application;
FIG. 3 is a schematic diagram of a processing device according to an alternative embodiment of the present application;
FIG. 4 is a schematic diagram of a garden leaching apparatus according to an alternative embodiment of the present application.
Icon: 10-a domestic sewage treatment system; 100-a sewage collection device; 110-a solid-liquid separation device; 120-a sewage collection pipe; 130-a connecting pipe; 200-a processing device; 202-cleaning the sewage port; 204-a vent; 206-an aerator pipe; 208-a flow-guiding clapboard; 210-an anaerobic tank; 220-anoxic pond; 230-an aerobic tank; 240-a first communication conduit; 250-a first valve; 300-a water distribution device; 310-distribution pool; 320-a filter; 330-a second communication duct; 340-a second valve; 400-garden leaching device; 402-vegetables; 410-an anti-seepage device; 420-a nutritional matrix filler; 430-irrigation pipe network; 440-an outlet conduit; 500-a water reservoir; 502-overflow port; 510-a rainwater collection device; 520-a filter device; 530-a third communication conduit; 540-third valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature may be directly on or under the second feature or may include both the first and second features being in direct contact, but also the first and second features being in contact via another feature between them, not being in direct contact. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
At present, the rural domestic sewage treatment mode mainly adopts a wetland purification unit and an integrated small-sized sewage treatment device. The treatment mode is characterized in that domestic sewage is collected, and the purification effect of a small-sized treatment device such as a wetland purification unit or a biological filter is utilized to achieve the sewage treatment effect. But has the problems of high construction and maintenance cost, large workload of cleaning and maintenance, occupied land, no output benefit and the like, and is difficult to popularize and implement under the realistic conditions of low rural income level and lack of treatment enthusiasm. Therefore, the resource utilization system and method which can realize effective collection and treatment of domestic sewage and accord with the living habits of farmers are developed, and the resource utilization system and method have great application and popularization values for decentralized domestic sewage control and resource utilization in vast rural areas in China.
An optional embodiment of the application provides a domestic sewage treatment system 10, and domestic sewage treatment system 10 combines rainwater collection and utilization on the basis of domestic sewage solid-liquid separation, anaerobic aerobic fermentation and other pretreatment, reforms resident family orchard, vegetable garden or garden absorption and purification system, realizes domestic sewage's on-the-spot absorption and resource utilization, can effectively collect, purify and utilize domestic sewage, reduces rural pollution discharge. The domestic sewage treatment system 10 adopts an unpowered design, and is simple and convenient to manage and maintain; the rainwater can be effectively collected and the sewage can be completely absorbed and purified; the sewage is treated in a harmless way and then is used as liquid fertilizer to be consumed in orchards, vegetable gardens and gardens, so that the resource utilization is realized, and the fertilizer investment and manual management can be reduced; the device facilitates the life of rural residents (such as garden watering, mop cleaning and the like), accords with the life habits of farmers, and is convenient to popularize and implement.
Referring to fig. 1 and 2, fig. 1 shows a specific structure of a domestic sewage treatment system 10 provided in an alternative embodiment of the present application in a first view, and fig. 2 shows a specific structure of the domestic sewage treatment system 10 provided in an alternative embodiment of the present application in a second view.
The domestic sewage treatment system 10 includes a sewage collecting apparatus 100, a treating apparatus 200, a water distributing apparatus 300, a water reservoir 500, and a garden leaching apparatus 400.
As shown in fig. 1, the sewage collecting device 100 includes a solid-liquid separation device 110 (see fig. 2) and a sewage collecting pipeline 120, wherein an inlet end of the solid-liquid separation device 110 is connected to the sewage collecting pipeline 120, and the sewage collecting pipeline 120 is used for receiving and collecting rural domestic sewage into the solid-liquid separation device 110 to perform solid-liquid separation to obtain liquid sewage. The outlet end of the solid-liquid separation device 110 is connected to the treatment device 200 through the communication pipe 130, so that the liquid sewage after solid-liquid separation is discharged into the treatment device 200 to be subjected to innocent treatment to obtain innocent liquid. The treating apparatus 200 is connected to the water dispenser 300 through a first communicating pipe 240, wherein a first valve 250 is provided on the first communicating pipe 240, so that the harmless liquid is delivered to the water dispenser 300 to be stored. In addition, the water dispenser 300 is connected to the water reservoir 500 through a third communication pipe 530, wherein a third valve 540 is provided on the third communication pipe 530. A rainwater collecting device 510 is connected to an inlet end of the water reservoir 500, and the rainwater collecting device 510 is used for collecting rainwater into the water reservoir 500. The collected rainwater is delivered to the water distribution device 300 through the third communicating pipe 530, and the rainwater and the harmless liquid are mixed in the water distribution device 300 to form liquid fertilizer. The water distribution device 300 is connected with the garden leaching device 400 through a second communication pipe 330, the garden leaching device 400 is connected with a water outlet pipe 440, and the second communication pipe 330 is provided with a second valve 340. The liquid fertilizer is transmitted to the garden leaching device 400 to be used as fertilizer application, and nutrient substances in the liquid fertilizer are absorbed by plants in the garden leaching device 400, so that the effect of purifying the domestic sewage is further achieved. The domestic sewage is discharged to the nature through the water outlet pipe 440 in the garden leaching device 400 after passing through the whole flow of the domestic sewage treatment system 10, and the pollution to the nature is avoided.
Referring to fig. 2, the solid-liquid separation device 110 is configured according to the type of the sewage, and the solid-liquid separation device 110 may include one or more combinations of a sand trap, a grid tank, an oil separation tank, etc. to separate the solid from the liquid in the sewage, and the solid is timely cleaned and fished to avoid blockage. For sewage types with more oil dirt, such as farmhouse-happy sewage, the solid-liquid separation device 110 must be equipped with an oil separation tank to prevent the oil dirt from blocking the equipment. The sewage collecting pipeline 120 can adopt a UPVC (Unplasticized polyvinyl chloride) pipe or brick-mixed underdrain form, a certain height difference is formed between the water inlet end and the water outlet end of the sewage collecting pipeline 120, the height difference is not smaller than 1m/100m (namely, the height difference of one meter is required to be formed in the sewage collecting pipeline 120 with the length of each hundred meters), so that the spontaneous confluence collection of sewage is realized, power equipment driving is not required, the management and maintenance are simple and convenient, and the cost is saved.
It should be noted that, in some alternative embodiments, a water pump may be disposed on the sewage collecting pipe 120 to provide additional power to drive, so as to speed up the efficiency of sewage collection.
Referring to fig. 2 and fig. 3, fig. 3 shows a specific structure of a processing device 200 according to an alternative embodiment of the present application.
The treatment device 200 comprises an anaerobic tank 210, an anoxic tank 220 and an aerobic tank 230 which are communicated in sequence. The outlet end of the solid-liquid separation device 110 is connected with the anaerobic tank 210 through a communication pipeline 130. The anaerobic tank 210, the anoxic tank 220 and the aerobic tank 230 are communicated through a diversion baffle plate 208. In other alternative embodiments, the anaerobic tank 210, the anoxic tank 220 and the aerobic tank 230 can be communicated with each other through pipes.
The anaerobic tank 210 and the anoxic tank 220 are of a closed structure, an anaerobic environment and an anoxic environment are formed inside the anaerobic tank, organic matters in sewage are fermented and decomposed, and the sewage cleaning port 202 is arranged, so that fermented liquid dung is convenient to clean or take. The anaerobic tank 210, the anoxic tank 220 and the aerobic tank 230 can be respectively added with a microorganism fixing device which can be a microorganism hanging film or other equipment, so that the microorganism can be conveniently attached, and a host environment is provided for fermenting microorganisms. It should be noted that in other alternative embodiments, the anaerobic tank 210 and the anoxic tank 220 can be replaced by methane tanks.
The aerobic tank 230 is a semi-closed structure, and is provided with a sewage cleaning port 202, a ventilation port 204, an aeration device and an aerobic reactor (not shown in the figure). The aeration device comprises an aeration pipe 206 and a blower (not shown in the figure), one end of the aeration pipe 206 is connected with the blower, and the other end of the aeration pipe 206 is communicated with the aerobic tank 230. The aeration device adopts wind power micro-aeration, which can provide aerobic environment for the microorganism fermentation in the aerobic tank 230, thereby achieving the effects of aerobic fermentation and deodorization.
The anaerobic tank 210 has the main function of releasing phosphorus and ammoniating part of organic matters; the primary function of the anoxic tank 220 is denitrification, nitrate nitrogen is sent from the aerobic reactor through internal circulation, and the amount of circulating mixed liquid is large. The aerobic tank 230 is a multifunctional reaction unit where BOD (Biochemical Oxygen Demand) removal, nitrification, phosphorus absorption, and the like are performed.
With continued reference to fig. 2, the water dispenser 300 includes a sump 310 and a filter 320. The distribution tank 310 is a closed structure.
The aerobic tank 230 is connected to the distribution tank 310 through a first communication pipe 240, the first communication pipe 240 is provided with a first valve 250, and the flow rate of the treated harmless liquid is controlled by opening and closing the first valve 250. The distribution tank 310 is connected to the filter 320 through a second communication pipe 330, and a second valve 340 is provided in the second communication pipe 330, and the second valve 340 controls the flow rate of the liquid passing through the second communication pipe 330. The filter 320 is connected to an irrigation pipe network 430. The filter 320 may be filled with biochar particles or adsorptive haydite, and may be disassembled and replaced to prevent the irrigation pipe network 430 from being clogged.
After the domestic sewage is treated in the treatment apparatus 200 (see fig. 1) for a certain period of time, the first valve 250 is opened so that the treated domestic sewage is finally delivered to the distribution tank 310 for storage. When the treated domestic sewage needs to be used, the second valve 340 is opened, so that the water in the distribution tank 310 is filtered by the filter 320 and then is conveyed into the irrigation pipe network 430, and the water in the distribution tank 310 is further fertilized and utilized by the irrigation pipe network 430.
The distribution tank 310 is further connected to a third communication pipe 530, and a third valve 540 is provided in the third communication pipe 530. The third communicating pipe 530 is connected to the water reservoir 500, and the water reservoir 500 is used for collecting and storing rainwater. And a certain height difference is formed between the water reservoir 500 and the distribution pool 310, the height difference is at least 1m, rainwater can flow into the distribution pool 310 spontaneously, irrigation water pressure is ensured, additional power equipment driving is not needed, management and maintenance are simple and convenient, and cost is saved. The filtering device 520 is disposed in the water reservoir 500, and the filtering device 520 may be in the form of a grid net, a filter screen, a permeable net, or the like, so that the rainwater flowing into the water reservoir 500 flows into the distribution reservoir 310 after being filtered, thereby providing a clean water source for the distribution reservoir 310. The inlet end of the water reservoir 500 is connected with a rainwater collecting device 510, the rainwater collecting device 510 can adopt a rainwater ditch or a rainwater pipe, and rainwater runoff on the roof and the ground is collected when raining and is collected into the water reservoir 500 through the rainwater collecting device 510 to be stored. The reservoir 500 is further provided with an overflow port 502, and when the collected rainwater is fully collected, the rainwater can be discharged outside through the overflow port 502.
It should be noted that in some alternative embodiments, a water pump may be disposed on the third communication pipe 530 to provide additional power to accelerate the efficiency of rainwater flowing into the distribution tank 310.
With continuing reference to fig. 2 and 4, fig. 4 illustrates the specific configuration of a garden leaching device 400 provided in an alternative embodiment of the present application.
The garden leaching unit 400 includes an impermeable unit 410, a nutrient matrix packing 420, and an irrigation pipe network 430.
The barrier 410 may be a barrier film or a barrier wall. The seepage-proofing device 410 is internally provided with a nutrient medium filler 420, and the nutrient medium filler 420 is prepared by mixing 50% of vegetable garden soil, 30% of zeolite, 10% of slag, 5% of chaff and 5% of fly ash according to the mass ratio. The nutritional matrix fill 420 is seeded with vegetables 402. in alternative embodiments, the nutritional matrix fill 420 may be used to plant flowers and trees. The irrigation pipe network 430 may be a drip irrigation or a buried pipe infiltration irrigation system. The barrier 410 is also provided with an outlet conduit 440, the outlet conduit 440 being used to discharge the water in the nutritional matrix fill 420 to nature.
The collected rainwater and the domestic sewage after the harmless treatment are fully mixed in the distribution tank 310 to form liquid fertilizer, vegetables 402 are planted in the nutrient matrix filler 420 in the anti-seepage device 410, the irrigation pipe network 430 is laid to convey the mixed liquid fertilizer to the nutrient matrix filler 420, the anti-seepage device 410 is used for preventing the liquid fertilizer from flowing out, the vegetables 402 absorb nutrient substances in the liquid fertilizer so as to achieve the effect of purifying water quality, and the domestic sewage is finally purified to be discharged to the natural world in a pollution-free manner through the domestic sewage treatment system 10.
An alternative embodiment of the present application also provides a method of treating a sanitary sewage treatment system 10, the method comprising the steps of:
(1) the rural domestic sewage is collected in a centralized way through a sewage collecting device 100;
(2) performing innocent treatment on the domestic sewage collected in the sewage collection device 100 through the treatment device 200;
(3) closing the third valve 540 to keep the space between the reservoir 500 and the distribution reservoir 310 closed; closing the second valve 340 to keep the space between the distribution tank 310 and the filter 320 closed; opening the first valve 250 to maintain the communication between the treatment device 200 and the distribution tank 310, so that the sewage after the harmless treatment enters the distribution tank 310;
(4) closing the first valve 250 to keep the space between the treating device 200 and the distribution tank 310 closed; closing the second valve 340 to keep the space between the distribution tank 310 and the filter 320 closed; opening the third valve 540 to maintain the communication between the reservoir 500 and the distribution reservoir 310, so that the rainwater in the reservoir 500 enters the distribution reservoir 310 to dilute the sewage after harmless treatment to form liquid fertilizer;
(5) closing the third valve 540 to keep the space between the reservoir 500 and the distribution reservoir 310 closed; closing the first valve 250 to keep the space between the treating device 200 and the distribution tank 310 closed; the second valve 340 is opened to maintain communication between the distribution reservoir 310 and the filter 320 for delivering liquid fertilizer to the irrigation pipe network 430.
The treatment method can efficiently purify and utilize the domestic sewage by using the domestic sewage treatment system 10, has simple and convenient operation method and easy operation, and is suitable for popularization in rural areas.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a domestic sewage treatment system which characterized in that:
comprises a sewage collecting device, a treatment device, a water distribution device and a field leaching device which are connected in sequence;
the treatment device is used for carrying out harmless treatment on the sewage;
the water distribution device is used for diluting the sewage after the harmless treatment and irrigating the garden through the garden leaching device.
2. The domestic sewage treatment system of claim 1, wherein:
the sewage collecting device comprises a solid-liquid separation device and a sewage collecting pipeline;
the sewage collecting pipeline is connected with the solid-liquid separation device, and a height difference is formed between the water inlet end and the water outlet end of the sewage collecting pipeline.
3. The domestic sewage treatment system of claim 2, wherein:
the solid-liquid separation device comprises an oil separation tank.
4. The domestic sewage treatment system of claim 2, wherein:
the treatment device comprises an anaerobic tank, an anoxic tank and an aerobic tank which are sequentially communicated;
the anaerobic tank is connected with the solid-liquid separation device, and the aerobic tank is connected with the water distribution device.
5. The domestic sewage treatment system of claim 4, wherein:
the anaerobic tank, the anoxic tank and the aerobic tank are provided with sewage cleaning ports, and the aerobic tank is provided with a ventilation opening and an aeration device.
6. The domestic sewage treatment system of claim 4, wherein:
the anaerobic tank, the anoxic tank and the aerobic tank are communicated through a diversion baffle in sequence, and a microorganism fixing device is arranged in the anaerobic tank.
7. The domestic sewage treatment system of claim 4, wherein:
the water distribution device comprises a water distribution tank and a filter;
the distribution tank is connected with the aerobic tank, and a first valve is arranged between the distribution tank and the aerobic tank;
the distribution tank is connected with the filter, and a second valve is arranged between the distribution tank and the filter.
8. The domestic sewage treatment system of claim 7, wherein:
the domestic sewage treatment system also comprises a water storage tank, wherein the water storage tank is used for collecting rainwater;
a filtering device is arranged in the water storage tank;
the reservoir is connected with the distribution pool, and a third valve is arranged between the reservoir and the distribution pool;
the reservoir and the distribution pool have a height difference.
9. The domestic sewage treatment system of claim 7, wherein:
the garden leaching device comprises an anti-seepage device, a nutrient matrix filler and an irrigation pipe network;
the nutrient matrix filler is arranged in the anti-seepage device, the irrigation pipe network is connected to the filter, and the irrigation pipe network is used for irrigating the nutrient matrix filler;
the nutrient medium filler is prepared from vegetable garden soil, zeolite, furnace slag, chaff and fly ash in proportion.
10. A method for treating a domestic sewage treatment system, wherein the domestic sewage treatment system is the domestic sewage treatment system according to any one of claims 1 to 9, the method comprising the steps of:
the rural domestic sewage is collected in a centralized manner through the sewage collecting device;
performing innocent treatment on the domestic sewage collected in the sewage collecting device through the treatment device;
the method comprises the following steps of keeping a water storage pool and a water distribution pool closed, keeping the water distribution pool and a filter closed, keeping the treatment device and the water distribution pool communicated, so that sewage subjected to harmless treatment enters the water distribution pool, wherein the water distribution device comprises the water distribution pool and the filter, the water distribution pool is connected with the filter, a second valve is arranged between the water distribution pool and the filter, the water storage pool is used for collecting rainwater, a filtering device is arranged in the water storage pool, the water storage pool is connected with the water distribution pool, and a third valve is arranged between the water storage pool and the water distribution pool;
keeping the treatment device and the distribution tank closed, keeping the distribution tank and the filter closed, and keeping the reservoir and the distribution tank communicated, so that rainwater in the reservoir enters the distribution tank to dilute sewage subjected to harmless treatment;
keeping the water storage tank and the distribution tank closed, keeping the treatment device and the distribution tank closed, and keeping the distribution tank and the filter communicated with each other to output diluted sewage subjected to innocent treatment.
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| CN201911063811.5A CN110683645A (en) | 2019-11-01 | 2019-11-01 | Domestic sewage treatment system and treatment method |
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| CN201911063811.5A CN110683645A (en) | 2019-11-01 | 2019-11-01 | Domestic sewage treatment system and treatment method |
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Cited By (1)
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