CN110759598A - Rural domestic sewage's high-efficient processing system - Google Patents
Rural domestic sewage's high-efficient processing system Download PDFInfo
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- CN110759598A CN110759598A CN201911100165.5A CN201911100165A CN110759598A CN 110759598 A CN110759598 A CN 110759598A CN 201911100165 A CN201911100165 A CN 201911100165A CN 110759598 A CN110759598 A CN 110759598A
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- septic tank
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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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F3/28—Anaerobic digestion 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
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of 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
- 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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to an efficient treatment system for rural domestic sewage, which can efficiently remove nitrogen, phosphorus and organic matters in the rural domestic sewage and has energy-saving, environment-friendly and economic benefits. A high-efficiency treatment system for rural domestic sewage, a recycling system, which is used for producing biogas through domestic sewage to realize solid-liquid separation; the treatment system introduces the water separated from the reuse system for algae cultivation; and the ecological system is used for cultivating plants and fishes by using the water discharged by the treatment system. The invention has the beneficial effects that: organic matters can be removed; the septic tank is internally provided with a clapboard, and the activated carbon filler is paved in the clapboard, so that organic matters in rural domestic sewage can be well removed. The nitrogen and phosphorus removal effect is good; the plastic film is used for controlling the temperature of the high-efficiency algae pond, the LED plant growth lamp is used for illuminating at night, algae can grow and propagate for 24 hours, nitrogen and phosphorus in sewage can be efficiently removed, and finally the ecological fish pond is used for further removing the nitrogen and the phosphorus, so that a good nitrogen and phosphorus removing effect is achieved.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a high-efficiency treatment system for rural domestic sewage.
Background
Along with the expansion of cities and the continuous promotion of urbanization, the pace of rural economic construction is faster and faster, the connection between cities and villages is tighter and tighter, and the degree of environmental damage is more and more serious. The rural domestic sewage is mainly derived from kitchen sewage, washing sewage, toilet sewage and other mixed sewage, and contains a large amount of nitrogen, phosphorus and organic matters. However, due to the imperfect rural sewage treatment system and the weak environmental awareness, sewage in many areas is discharged randomly, surrounding lakes and rivers are polluted, the water environment is damaged, and even the application water source in rural areas is polluted, so that the normal life safety of people is threatened. Aiming at the problems that the existing treatment modes of rural domestic sewage in China comprise a septic tank, an anaerobic biomembrane reaction tank, an artificial wetland and the like, but all have own defects, the septic tank can cause siltation, the sewage is easy to leak, the treatment effect is very limited, and the comprehensive benefit is relatively low. The anaerobic biomembrane reaction tank has low capability of removing N, P element, the effluent is poor, and secondary treatment is still needed. The artificial wetland has low pollution source load and occupies a large amount of land, the treatment effect is severely restricted by climate and season, and the phosphorus removal capability is weaker and weaker along with the increase of the operation time. Therefore, the rural domestic sewage integrated treatment method which has the advantages of energy conservation, environmental protection, economic benefit and high-efficiency nitrogen and phosphorus removal has great significance for the current rural domestic sewage problem.
The efficient algae pond is an improved form of the traditional stable pond, and can generate an environment beneficial to the growth and the propagation of microorganisms by strengthening the proliferation of algae, form a tighter algae-bacteria symbiotic system, and create certain physicochemical conditions to effectively remove organic carbon, pathogens, particularly pollutants such as nitrogen, phosphorus and the like. The novel stabilization pond has the advantages of low operation cost, simplicity in maintenance and management and the like of the traditional stabilization pond, overcomes the defects of overlong retention time, large occupied area and the like of the traditional stabilization pond, and has wide application prospect in the aspect of treating sewage in rural areas and small towns. However, it has some problems, and the high-efficiency algae pond is greatly influenced by temperature and illumination, because algae and microorganisms have tolerance limits to temperature, and illumination is essential to the growth of algae, so the popularization of the high-efficiency algae pond is limited to a certain extent.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the efficient treatment system for the rural domestic sewage, aiming at the problems of large occupied area, high cost, complex process, low nitrogen and phosphorus removal efficiency and the like of treatment of the rural domestic sewage in China, the efficient treatment system can efficiently remove nitrogen, phosphorus and organic matters in the rural domestic sewage, has energy-saving, environment-friendly and economic benefits, and effectively solves the treatment problem of the rural domestic sewage.
The technical scheme of the invention is as follows: a high-efficiency treatment system for rural domestic sewage,
the system is reused to produce biogas through domestic sewage, so that solid-liquid separation is realized;
the treatment system introduces the water separated from the reuse system for algae cultivation;
and the ecological system is used for cultivating plants and fishes by using the water discharged by the treatment system.
The invention relates to a preferable scheme of a high-efficiency treatment system for rural domestic sewage, which comprises the following steps: the recycling system comprises a septic tank for producing methane and a sewage collecting pipe for introducing domestic sewage;
the septic tank is divided into a primary septic tank for storing solid in the domestic sewage and a secondary septic tank for storing liquid in the domestic sewage, and the primary septic tank and the secondary septic tank are communicated through a septic pipe; a filtering treatment device for filtering liquid in the domestic sewage is arranged in the secondary septic tank;
the top of the septic tank is provided with an inspection hole cover plate for treating solid in domestic sewage and a biogas outlet pipe for discharging generated biogas.
The invention relates to a preferable scheme of a high-efficiency treatment system for rural domestic sewage, which comprises the following steps: the filter treatment device is internally provided with a filter chamber;
comprises a clapboard with a water filtering hole at the lower end, an active carbon filler arranged in a filtering chamber, and an anti-blocking overflow pipe positioned in the active carbon filler.
The invention relates to a preferable scheme of a high-efficiency treatment system for rural domestic sewage, which comprises the following steps: the treatment system comprises a high-efficiency algae pond for algae cultivation and a water inlet pipe for introducing the filtered domestic sewage into the high-efficiency algae pond;
an E-shaped baffle plate for water to circularly circulate and an electric stirring paddle for providing power for water circulation are arranged in the high-efficiency algae pond;
an arched support frame with a plastic film is installed above the efficient algae pond, an LED plant growth lamp for algae to grow at night is installed inside the arched support frame, and a solar panel for providing electric energy for the LED plant growth lamp and the electric stirring paddle is installed at the top of the arched support frame.
The invention relates to a preferable scheme of a high-efficiency treatment system for rural domestic sewage, which comprises the following steps: the ecological system comprises an ecological fishpond planted with aquatic plants and a water outlet pipe for introducing the efficient algae pond into the ecological fishpond.
The invention has the beneficial effects that:
organic matters can be removed; the septic tank is internally provided with a clapboard, wherein activated carbon filler is paved, and the sewage passes through the activated carbon filler by using the overflow pipe, so that organic matters in rural domestic sewage can be well removed.
The nitrogen and phosphorus removal effect is good; the plastic film is used for controlling the temperature of the high-efficiency algae pond, the LED plant growth lamp is used for illuminating at night, algae can grow and propagate for 24 hours, nitrogen and phosphorus in sewage can be efficiently removed, and finally the ecological fish pond is used for further removing the nitrogen and the phosphorus, so that a good nitrogen and phosphorus removing effect is achieved.
Energy conservation and environmental protection; the solar panel is used for providing the operation power of the electric stirring paddle of the daytime efficient algae pond and the electric power required by the LED plant growth lamp for maintaining illumination at night, so that the energy is saved. The redundant algae in the high-efficiency algae pond can be eliminated by large-scale aquatic plants and silver carps in the ecological fish pond, thereby avoiding water eutrophication and achieving the effect of protecting the environment.
Has economic benefit; the manure in the septic tank can be used as fertilizer, the biogas can also be used for fuel demand of surrounding farmers, and large-scale aquatic plants and silver carps and bighead carps in the ecological fishpond can also be sold partially at regular intervals as economic income.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a schematic perspective view of a recycling system;
FIG. 4 is a schematic view of an arched support, a solar panel, and an LED plant growth light mounting structure;
in the figure: 1-a sewage collecting pipe; 2-a septic tank; 3-inspection hole cover plate; 4-biogas outlet pipe; 5-a manure passing pipe; 6-overflow pipe; 7-a separator; 8-activated carbon filler; 9-an arched support frame; 10-a solar panel; 11-LED plant growth lights; 12-electric stirring paddle; 13-E type baffle; 14-high efficiency algae ponds; 15-water inlet pipe; 16-a water outlet pipe; 17-ecological fish pond; 18-soil.
Detailed description of the preferred embodiments
The invention is further illustrated by the following examples and figures.
Example 1
Referring to fig. 1 and 2, a high-efficiency treatment system for rural domestic sewage,
the system is reused to produce biogas through domestic sewage, so that solid-liquid separation is realized;
the treatment system introduces the water separated from the reuse system for algae cultivation;
and the ecological system is used for cultivating plants and fishes by using the water discharged by the treatment system.
Referring to fig. 3, the recycling system includes a septic tank 2 for producing biogas, and a sewage collecting pipe 1 for introducing domestic sewage;
the septic tank 2 is divided into a primary septic tank for storing solid in the domestic sewage and a secondary septic tank for storing liquid in the domestic sewage, and the primary septic tank and the secondary septic tank are communicated through a septic pipe 5; a filtering treatment device for filtering liquid in the domestic sewage is arranged in the secondary septic tank;
the top of the septic tank 2 is provided with an inspection hole cover plate 3 for treating solid in domestic sewage and a biogas outlet pipe 4 for discharging generated biogas.
Specifically, the inspection hole cover plate 3 can regularly clean solid manure residues in domestic sewage and is used as fertilizer. The biogas outlet pipe 4 can supply the collected biogas to surrounding farmers for use as fuel gas.
The filter treatment device is internally provided with a filter chamber;
comprises a clapboard 7 with a water filtering hole at the lower end, an active carbon filler 8 arranged in a filtering chamber, and an anti-blocking overflow pipe 6 positioned in the active carbon filler 8.
Specifically, domestic sewage flows through the overflow pipe 6 and flows into the activated carbon filler 8, so that the purpose of removing organic matters is achieved.
Referring to fig. 4, the treatment system includes a high efficiency algae pond 14 for algae cultivation, and an inlet pipe 15 for introducing filtered domestic sewage into the high efficiency algae pond 14;
an E-shaped baffle 13 for water to circulate circularly and an electric stirring paddle 12 for providing power for water circulation are arranged in the high-efficiency algae pond 14;
an arched support frame 9 with a plastic film is installed above the high-efficiency algae pond 14, an LED plant growth lamp 11 for algae to grow at night is installed inside the arched support frame 9, and a solar panel 10 for providing electric energy for the LED plant growth lamp 11 and the electric stirring paddle 12 is installed at the top of the arched support frame 9.
The ecological system comprises an ecological fishpond 17 planted with aquatic plants and a water outlet pipe 16 for leading the inside of the high-efficiency algae pond 14 into the ecological fishpond 17.
Specifically, the sewage treated and purified by the high-efficiency algae pond 14 is discharged into the ecological fish pond 17 through a water outlet pipe, large aquatic plants including but not limited to eichhornia crassipes, reed, typha angustifolia, codium polycephalum, lima algae, duckweed, water chestnut and the like can be planted on the ecological fish pond 17, the ecological fish pond can be properly selected and planted according to different climatic conditions, the fish cultured under the ecological fish pond can be silver carp and bighead carp, nitrogen and phosphorus can be further removed from the treated water, the residual algae can be removed by using the large aquatic plants and the silver carp and bighead carp, the large aquatic plants and the silver carp and bighead carp can be periodically salvaged and sold, and certain economic benefit can be brought to rural areas.
Example 2
Taking 20 farmers for use as an example, the septic tank 2 can be designed to be 4.5-10m in volume for carrying out the year. The sewage collecting pipe 1 is made of a hot-dip cast iron pipe, a copper pipe, a stainless steel pipe and the like with inner enamel plastics. The material of the biogas outlet pipe 4 is 316 stainless steel, 304 stainless steel, carbon steel and the like. The material of the partition 7 may be gypsum board or cement board. The filler thickness of the activated carbon filler 8 is 0.4 m. The overflow pipes 6 are arranged in 2 x 4 rows and columns and made of welded steel pipes, galvanized steel pipes and the like. The water inlet pipe 15 and the water outlet pipe 16 are made of common materials such as hot-dip cast iron pipes, copper pipes, stainless steel pipes and the like with inner enamel plastics. Efficient algal pond 14 has a volume of 4.5-10 m. Solar panel 10 inlays at arched support frame 9 top, and solar panel 10 can store up the electricity and use night daytime. The LED plant growth lamps 11 are arranged in 2 x 4 rows and columns and are communicated with the solar panel 10. The electric stirring paddles 12 are positioned on the left side inside the high-efficiency algae pond 14, and are in a row of 4 and communicated with the solar panel 10. The E-shaped baffle 13 is made of gypsum boards, cement boards or plastic boards, is erected in the high-efficiency algae pond in an E shape and is used for dividing the interior of the high-efficiency algae pond into a plurality of long and narrow galleries so as to facilitate the water to circularly flow in the pond. The large aquatic plants in the ecological fishpond 17 comprise eichhornia crassipes, reed, cattail angustifolia, gulfweed, lima, duckweed, water chestnut and the like, can be selected and planted according to different climatic conditions and the nature of pollutants, and the fish can be silver carp and bighead carp.
As shown in figures 1-4, rural domestic sewage enters a first-stage septic tank in a septic tank 2 from a sewage collecting pipe 1 to be precipitated and fermented to remove excrement, suspended matters and pathogenic microorganisms, excrement liquid enters a second-stage septic tank through an excrement passing pipe 5, then enters a partition plate 7 through an overflow pipe 6 to be fully contacted with an activated carbon filler 8 to remove organic matters, and then enters a high-efficiency algae pond 14 through a water inlet pipe 15, algae in the high-efficiency algae pond 14 can be chlorella, and nitrogen and phosphorus in the sewage are consumed through self growth and propagation. A plastic film is laid on the arched support frame 9 above the efficient algae pond 14, the temperature can be well maintained, the solar panel 10 positioned on the top edge of the arched support frame 9 collects and stores light energy in the daytime, provides power for the electric stirring paddle 12 and provides required electric power for the LED plant growth lamp 11 at night, so that the efficient algae pond 14 operates within twenty-four hours, the nitrogen and phosphorus removal efficiency is greatly improved, and the E-shaped baffle 13 is erected in the efficient algae pond 14 in an E shape and is used for dividing the inside of the efficient algae pond 14 into a plurality of long and narrow galleries so as to facilitate the water to circularly flow in the pond. Finally, the treated water enters the ecological fishpond 17 through the water outlet pipe 16, so that the purification and discharge effects are achieved. Biogas in the septic tank 2 can be collected by the biogas outlet pipe 4 and supplied to surrounding farmers for use as fuel gas, and the manure residues are periodically cleaned manually by the inspection hole cover plate 3 and can be used as fertilizer. The surplus algae can be manually salvaged and discharged into the ecological fishpond 17, and the algae can be removed by the large aquatic plants and the silver carp and bighead carp in the ecological fishpond.
Claims (5)
1. The utility model provides a rural domestic sewage's high-efficient processing system which characterized in that:
the system is reused to produce biogas through domestic sewage, so that solid-liquid separation is realized;
the treatment system introduces the water separated from the reuse system for algae cultivation;
and the ecological system is used for cultivating plants and fishes by using the water discharged by the treatment system.
2. The system for efficiently treating rural domestic sewage according to claim 1, wherein: the recycling system comprises a septic tank (2) for producing methane and a sewage collecting pipe (1) for introducing domestic sewage;
the septic tank (2) is divided into a primary septic tank for storing solid in the domestic sewage and a secondary septic tank for storing liquid in the domestic sewage, and the primary septic tank and the secondary septic tank are communicated through a septic pipe (5); a filtering treatment device for filtering liquid in the domestic sewage is arranged in the secondary septic tank;
the top of the septic tank (2) is provided with an inspection hole cover plate (3) for treating solid in domestic sewage and a methane outlet pipe (4) for discharging generated methane.
3. The system for efficiently treating rural domestic sewage according to claim 1, wherein: the filter treatment device is internally provided with a filter chamber;
comprises a clapboard (7) with a water filtering hole at the lower end, an active carbon filler (8) arranged in a filtering chamber, and an anti-blocking overflow pipe (6) positioned in the active carbon filler (8).
4. The system for efficiently treating rural domestic sewage according to claim 1, wherein: the treatment system comprises a high-efficiency algae pond (14) for algae cultivation and a water inlet pipe (15) for introducing the filtered domestic sewage into the high-efficiency algae pond (14);
an E-shaped baffle (13) with water in annular circulation and an electric stirring paddle (12) for providing power for water circulation are arranged in the high-efficiency algae pond (14);
an arched support frame (9) with a plastic film is installed above the efficient algae pond (14), an LED plant growth lamp (11) for algae to grow at night is installed inside the arched support frame (9), and a solar panel (10) for providing electric energy for the LED plant growth lamp (11) and the electric stirring paddle (12) is installed at the top of the arched support frame.
5. The system for efficiently treating rural domestic sewage according to claim 1, wherein: the ecological system comprises an ecological fishpond (17) planted with aquatic plants and a water outlet pipe (16) for introducing the high-efficiency algae pond (14) into the ecological fishpond (17).
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Citations (8)
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US20060021935A1 (en) * | 2004-05-29 | 2006-02-02 | Kim Sae C | Circulating sewage/waste water purification device |
CN102745864A (en) * | 2012-07-06 | 2012-10-24 | 同济大学 | Distributed sewage biological treatment process in rural area |
CN104609675A (en) * | 2015-02-15 | 2015-05-13 | 陈英旭 | Ecological comprehensive treatment method of dairy farm breeding wastewater |
CN105016579A (en) * | 2015-07-16 | 2015-11-04 | 三达水(北京)科技有限公司 | Rural sewage treatment system |
CN105347500A (en) * | 2015-12-01 | 2016-02-24 | 东华大学 | All-weather-running temperature control efficient algae pond system for purifying rural domestic sewage |
CN108467172A (en) * | 2018-05-30 | 2018-08-31 | 芜湖优聚塑模有限公司 | A kind of modified three-grid septic tank |
CN109734246A (en) * | 2019-01-28 | 2019-05-10 | 贵州师范大学 | A kind of rural area domestic sewage ecological processing method and system |
CN209261284U (en) * | 2018-12-20 | 2019-08-16 | 吴耿彬 | Rural area is metabolized symbiosis eco-agricuhure system |
-
2019
- 2019-11-12 CN CN201911100165.5A patent/CN110759598A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060021935A1 (en) * | 2004-05-29 | 2006-02-02 | Kim Sae C | Circulating sewage/waste water purification device |
CN102745864A (en) * | 2012-07-06 | 2012-10-24 | 同济大学 | Distributed sewage biological treatment process in rural area |
CN104609675A (en) * | 2015-02-15 | 2015-05-13 | 陈英旭 | Ecological comprehensive treatment method of dairy farm breeding wastewater |
CN105016579A (en) * | 2015-07-16 | 2015-11-04 | 三达水(北京)科技有限公司 | Rural sewage treatment system |
CN105347500A (en) * | 2015-12-01 | 2016-02-24 | 东华大学 | All-weather-running temperature control efficient algae pond system for purifying rural domestic sewage |
CN108467172A (en) * | 2018-05-30 | 2018-08-31 | 芜湖优聚塑模有限公司 | A kind of modified three-grid septic tank |
CN209261284U (en) * | 2018-12-20 | 2019-08-16 | 吴耿彬 | Rural area is metabolized symbiosis eco-agricuhure system |
CN109734246A (en) * | 2019-01-28 | 2019-05-10 | 贵州师范大学 | A kind of rural area domestic sewage ecological processing method and system |
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