CN202576154U - Complex ecological system for treating domestic wastewater of rural community - Google Patents

Complex ecological system for treating domestic wastewater of rural community Download PDF

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Publication number
CN202576154U
CN202576154U CN2012200705390U CN201220070539U CN202576154U CN 202576154 U CN202576154 U CN 202576154U CN 2012200705390 U CN2012200705390 U CN 2012200705390U CN 201220070539 U CN201220070539 U CN 201220070539U CN 202576154 U CN202576154 U CN 202576154U
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China
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layer
water
soil
horizontal flow
tank
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CN2012200705390U
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Chinese (zh)
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燕启社
张露允
朱碧青
张瑞芹
周俊
高镜清
刘骏一
刘慧芳
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郑州大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The utility model discloses a complex ecological system for treating the domestic wastewater of a rural community. The system mainly comprises a septic tank, an adjusting tank, a soil ecological treatment system, a horizontal flow constructed wetland system and a collector well, which are connected in series. The soil ecological treatment system sequentially consists of an impermeable layer, a gravel collection layer, a complex soil main reaction layer, a water distribution layer, a soil layer and a vegetable layer from bottom to top. The horizontal flow constructed wetland system sequentially consists of a bottom impermeable layer, a water distribution and collection and exhaust pipe network system, a substrate layer, an aquatic plant water body layer and a water body layer from top to bottom, wherein the substrate layer consists of a filler, a humus layer and a plant root system; and the water body layer consists of aerobic and anerobic microorganism populations of aquatic plants. A water outlet of the adjusting tank is communicated with the water distribution layer of the soil ecological treatment system. The gravel collection layer of the soil ecological treatment system is communicated with the horizontal flow constructed wetland system. A submersible pump is arranged on a pipeline of the collector well. The influence of environmental climate conditions on the complex ecological system is slight, the complex ecological system can be harmonized and unified with a broad rural environment, and the living environment of farmers can be beautified.

Description

Be used for the complex ecosystem that the rural community sanitary wastewater is handled
Technical field
The invention belongs to the sanitary wastewater processing technology field, is that sanitary wastewater is handled water treatment and the water reclamation technology that combines with middle water recycling.
Background technology
China is one of country of 13 poor-waters in the world, is the country of unique true front crisis near water in the big country.It is the weakness of China in the 21 century competition in overall national strength that serious water shortage and water pollute, and is the bottleneck of restriction economy and social sustainable development.Considerably beyond other crisis, it can directly cause energy dilemma, ecocrisis, crisis in food, healthy crisis and even existence crisis to our influence in the water crisis.Widespread pollution from the overuse of fertilizers and pesticides in rural area is to cause one of main reason of water pollution.The processing rate of Rural areas sanitary wastewater is low, and most sanitary wastewaters are not through handling directly discharging.Rural domestic waste is the major cause that causes Rural Water Environment to pollute.In order to improve the human settlement in China rural area, must strengthen collection, processing and the resource utilization Facilities Construction of rural domestic waste.
At present, the sewage of China key city mainly focuses on through building sewage work, and its conventional technology is activated sludge process and biomembrance process.But also there is a bigger difficult point in the improvement of spread source sanitary wastewater such as samll cities and towns and rural area; Be that the general construction cost in municipal sewage plant is all quite high; Build the bigger sewage work of a large amount of transport pipes and floor space; And working cost is bigger after building up, and for handling 10,000 tons of urban domestic wastewater treatment plants a day, investment is about about 1,500 ten thousand yuan; Annual operating cost is about 150 ~ 2,000,000 yuan, so the capable construction of villages and small towns sanitary wastewater treatment plant possibly not have the ability operation yet; The municipal sewage plant is in treating processes in addition, also can produce to be difficult to the mud disposed in a large number, and the stench that produces in the treating processes can bring deficiencies such as detrimentally affect to surrounding resident living environment.For sanitary wastewater relatively dispersive rural area and samll cities and towns, not only be difficult to bear the tremendous economic pressure that sewage work's construction and operation bring, and human settlements disperse to make the collection of sewage very difficult.At present; The vast rural area of China is generally all far away apart from the urban district, and the sewage network that sanitary wastewater enters into the key city needs bigger investment, if adopt conventional soil treatment process; Handle at the scene; Like slow land treatment system, rapid infiltration system, overland flow system, though sanitary wastewater is handled the treatment effect have economical and efficient usually, these technologies also exist and receive that natural environmental condition influences greatly, the failure surface view, emit bad smell and shortcoming such as floor space is big.Therefore need exploitation that environment is not had destructive, is applicable to that the sewage disposal technology of spread source is even more important.Having obtained the patent No. before the applicant is that " 200920091078.3 ", application name are called the utility model patent of " a kind of sanitary wastewater ecological treatment system "; Disclose a kind of autochthonous soil ecological treatment system of sanitary wastewater, but can not be applicable to the sanitary wastewater of the high loading of handling the rural community discharging fully.
The utility model content
The utility model problem to be solved is to the deficiency in the background technology; A kind of complex ecosystem that the rural community sanitary wastewater is handled that is used for is provided; Utilize soil ecology treatment system and horizontal flow artificial wetland system to combine; The soil ecology treatment system is to utilize the decomposition of the adsorption filtration of composite soil filler, soil microorganisms and absorb organism and the macromolecular particle thing in the sewage, and absorbs nitrogen, phosphorus, other trace elements and heavy metal etc. in the sewage through photosynthesis of plants.The horizontal flow artificial wetland system is the sewage disposal technology that on the basis of natural or semi-natural purification system, grows up; The matrix that promptly artificially one or more media such as stone, sand, soil is constituted by a certain percentage, and implant the WWT ecosystem of plant selectively.
Adopt following technical scheme in order to solve the problems of the technologies described above: a kind of complex ecosystem that is used for the processing of rural community sanitary wastewater; Mainly be composed in series by septic tank, equalizing tank, soil ecology treatment system, horizontal flow artificial wetland system and pump well; The soil ecology treatment system is made up of impervious barrier, gravel collecting layer, composite soil main reaction layer, water distribution layer, pedosphere and vegetable layer from top to bottom successively; The horizontal flow artificial wetland system is from top to bottom successively by the bottom impervious barrier; Water distribution, catchment and the exhaust pipe network system; The hypothallus that filler, humus layer and root system of plant are formed, the water body layer that waterplant water body layer and waterplant are aerobic, the anaerobion population is formed constitutes; The equalizing tank water outlet is communicated with water distribution layer in the soil ecology treatment system, gravel collecting layer in the soil ecology treatment system and horizontal flow artificial wetland system connectivity, and the pipeline of pump well is provided with submersible pump.
Septic tank is provided with the sewage import, is provided with grid in the septic tank, and the water outlet of septic tank is communicated with through pipeline with the water-in of equalizing tank, is provided with S type weir in the equalizing tank.
Be provided with Steel Concrete at the bottom of the pond of septic tank and equalizing tank, between the water-in of septic tank and the water outlet difference of altitude arranged, between the water-in of equalizing tank and the water outlet difference of altitude is arranged.
Said water distribution layer is made up of water distributor and light ceramic, and the two-way osculum end that has of water distributor is blocked up, and water distributor adopts tiltedly below 45 layout.
[0009]The bottom impervious barrier of horizontal flow artificial wetland adopts the clay layer antiseepage or lays anti seepage membrane, and water distribution, water gathering system are made up of inlet channel and outlet conduit.
Most of system of soil ecology treatment system and horizontal flow artificial wetland system is embedded in underground in the utility model; It is less to receive the amblent air temperature condition influence; Can not distribute unpleasant odor, not influence ground landscape, the earth surface planting lawn; Can with the overall situation harmony in rural area, beautify peasant's environment of living.Its water distribution layer can effectively prevent not only that at subsurface 35cm place winter is freezing, and can also make full use of the inflation biography oxygen effect of thin solum in this degree of depth, and saves the excavation project amount.Add the treatment effect that different fillers has improved system greatly at composite soil main reaction layer, can regulate C, N ratio; Adding light ceramic and cinder can increase the permeability and the adsorptive power of loam, increases the hydraulic load of system, increases the ability of system's dephosphorization; The plant of in the horizontal flow artificial wetland system, planting in addition has ornamental value, can bring good ecologic effect.The horizontal flow artificial wetland system can carry out the synergy of physics, chemistry, biology and plant, not only has good soil removability, also has stronger shock-resistant ability.Adopt the gathering system of gravel bed, the middle water after can not only collection and treatment, and reduced construction and maintenance operation cost, help the higher generalization application.For the processing of dispersed point source sanitary wastewater, the present invention compares with traditional active sludge treatment process can save capital cost about 50%, can save operational and administrative expenses more than 85%, and management is simple, and working cost is extremely low.Not only to good removal effect of organic matter, and also strong to the removal ability of nitrogen phosphorus, water quality of processed water is good, and the water quality after the processing can reach the standard of reuse water.
Reuse water can be used for the lavatory of irrigated farmland or flushing farmers' reaching the recycle of water resources, thereby alleviating the pressure of water resources, makes rural community play the effect that a demonstration is taken the lead aspect comprehensive utilization of water resources and the environment protection.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of soil ecology treatment system.
Fig. 3 is the structural representation of horizontal flow artificial wetland system.
Embodiment
As shown in Figure 1, a kind of complex ecosystem that is used for the processing of rural community sanitary wastewater mainly is composed in series by septic tank 1, equalizing tank 2, soil ecology treatment system 3, horizontal flow artificial wetland system 4 and pump well 5.As shown in Figure 2, the soil ecology treatment system is made up of impervious barrier 6, gravel collecting layer 7, composite soil main reaction layer 8, water distribution layer 9, pedosphere 10 and vegetable layer 11 from top to bottom successively.As shown in Figure 3; The horizontal flow artificial wetland system is from top to bottom successively by bottom impervious barrier 12; Water distribution, catchment and exhaust pipe network system 13; The hypothallus 14 that filler, humus layer and root system of plant are formed, the water body layer 15 that waterplant water body layer and waterplant are aerobic, the anaerobion population is formed constitutes.Septic tank is provided with the sewage import, is provided with grid in the septic tank, and grid is used to remove foreign material, suspended substance, and sanitary wastewater is carried out pre-treatment, and the water outlet of septic tank is communicated with through pipeline with the water-in of equalizing tank; Be provided with S type weir in the equalizing tank, in equalizing tank, carry out the water quality homogenizing and regulate, and again the suspended solid in the water is carried out sedimentation and handle; The equalizing tank water outlet is communicated with water distribution layer in the soil ecology treatment system, through the water distribution pipe water distribution, waste water is evenly distributed in the soil ecology treatment system handles, and lays the header road in the gravel collecting layer in the soil ecology treatment system; The impervious barrier of horizontal flow artificial wetland system adopts the clay layer antiseepage or lays anti seepage membrane; Water distribution, water gathering system are made up of inlet channel and outlet conduit, and the filler in the hypothallus is made up of gravel, sand, wherein; Laying the header road in the gravel collecting layer in inlet channel and the soil ecology treatment system is communicated with; Outlet conduit and pump well are communicated with, and pump well is communicated with reuse pool, is equipped with submersible pump on the pipeline of pump well and reuse pool.Be provided with Steel Concrete at the bottom of the pond of septic tank and equalizing tank; Between the water-in of septic tank and the water outlet difference of altitude is arranged; Between the water-in of equalizing tank and the water outlet difference of altitude is arranged, total system need not other power-equipments, and sanitary wastewater can be gently from flowing through above-mentioned various piece in the time of setting; Finally be flowed to pump well, the middle water after the processing can be used for green area irrigation, agricultural irrigation and flushing lavatory.The soil ecology treatment system locates below ground level, and the horizontal flow artificial wetland system overwhelming majority is in below ground, and matrix section plantation in ground has the plant that receptivity is strong, ornamental value is high.
Said water distribution layer is made up of water distributor and light ceramic, and the two-way osculum end that has of water distributor is blocked up, and water distributor adopts tiltedly below 45 layout; Composite soil main reaction layer is mixed according to weight ratio 4:2:1:3 by loam, cinder, organic wastes, light ceramic, and also adding in the composite soil main reaction layer has engineering strain; Pedosphere is made up of loam; The landscape plant of planting above the pedosphere and the plant of horizontal flow artificial wetland; Have certain view and admire, economic worth, plant mainly is to have the plant that self absorbs with comparatively flourishing root system, can carry out art and make scape; Beautify ecotope, with environment coordination on every side.
Described engineering strain is the active sludge flora.Described active sludge flora is the mixture of wherein a kind of of pseudomonas, Nitromonas, Desulfovibrio or nitrate-reducing bacteria or at least two kinds.
The bottom impervious barrier of horizontal flow artificial wetland adopts the clay layer antiseepage or lays anti seepage membrane, and water distribution, water gathering system are made up of inlet channel and outlet conduit, and the filler in the hypothallus is made up of gravel, sand.

Claims (5)

1. one kind is used for the complex ecosystem that the rural community sanitary wastewater is handled; Mainly be composed in series by septic tank, equalizing tank, soil ecology treatment system, horizontal flow artificial wetland system and pump well; It is characterized in that: the soil ecology treatment system is made up of impervious barrier, gravel collecting layer, composite soil main reaction layer, water distribution layer, pedosphere and vegetable layer from top to bottom successively; The horizontal flow artificial wetland system is from top to bottom successively by the bottom impervious barrier; Water distribution, catchment and the exhaust pipe network system hypothallus that filler, humus layer and root system of plant are formed, the water body layer formation that waterplant water body layer and waterplant are aerobic, the anaerobion population is formed; The equalizing tank water outlet is communicated with water distribution layer in the soil ecology treatment system, gravel collecting layer in the soil ecology treatment system and horizontal flow artificial wetland system connectivity, and the pipeline of pump well is provided with submersible pump.
2. the complex ecosystem that is used for the processing of rural community sanitary wastewater according to claim 1; It is characterized in that: septic tank is provided with the sewage import; Be provided with grid in the septic tank; The water outlet of septic tank is communicated with through pipeline with the water-in of equalizing tank, is provided with S type weir in the equalizing tank.
3. the complex ecosystem that is used for the processing of rural community sanitary wastewater according to claim 2; It is characterized in that: be provided with Steel Concrete at the bottom of the pond of septic tank and equalizing tank; Between the water-in of septic tank and the water outlet difference of altitude is arranged, between the water-in of equalizing tank and the water outlet difference of altitude is arranged.
4. the complex ecosystem that is used for the processing of rural community sanitary wastewater according to claim 1; It is characterized in that: said water distribution layer is made up of water distributor and light ceramic; The two-way osculum end that has of water distributor is blocked up, and water distributor adopts tiltedly below 45 layout.
5. the complex ecosystem that is used for the processing of rural community sanitary wastewater according to claim 1; It is characterized in that: the bottom impervious barrier of horizontal flow artificial wetland adopts the clay layer antiseepage or lays anti seepage membrane, and water distribution, water gathering system are made up of inlet channel and outlet conduit.
CN2012200705390U 2012-02-29 2012-02-29 Complex ecological system for treating domestic wastewater of rural community CN202576154U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104326555A (en) * 2014-11-06 2015-02-04 东北大学 Northern rural domestic wastewater composite treatment system and northern rural domestic wastewater composite treatment method
CN105399277A (en) * 2015-12-12 2016-03-16 常州大学 Rural sewage treatment apparatus
CN105541052A (en) * 2016-02-23 2016-05-04 常州大学 Treatment canal for livestock and poultry breeding wastewater
CN105565592A (en) * 2015-12-17 2016-05-11 江苏同盛环保技术有限公司 Novel low-operating-cost rural sewage treatment plant
CN105621797A (en) * 2016-01-11 2016-06-01 常州大学 Device and method for treating sewage by utilizing spare ditches and fields
CN105836895A (en) * 2016-06-12 2016-08-10 广西飞扬环保科技有限公司 Integrated sewage purification system
CN107162337A (en) * 2017-06-26 2017-09-15 华北电力大学 A kind of cold nonirrigated farmland area domestic sewage in rural areas multimedium ecological treatment system and method
CN107162338A (en) * 2017-06-26 2017-09-15 华北电力大学 A kind of microkinetic removes the multimedium processing system and method for antibiotic in waste water
CN108928994A (en) * 2018-07-23 2018-12-04 贵州润喆环境治理有限公司 A kind of small-sized biological recirculating water purification method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104326555A (en) * 2014-11-06 2015-02-04 东北大学 Northern rural domestic wastewater composite treatment system and northern rural domestic wastewater composite treatment method
CN105399277A (en) * 2015-12-12 2016-03-16 常州大学 Rural sewage treatment apparatus
CN105565592A (en) * 2015-12-17 2016-05-11 江苏同盛环保技术有限公司 Novel low-operating-cost rural sewage treatment plant
CN105565592B (en) * 2015-12-17 2018-12-14 江苏泓润生物质能科技有限公司 A kind of low operating cost countryside sewage treatment equipment
CN105621797A (en) * 2016-01-11 2016-06-01 常州大学 Device and method for treating sewage by utilizing spare ditches and fields
CN105541052A (en) * 2016-02-23 2016-05-04 常州大学 Treatment canal for livestock and poultry breeding wastewater
CN105836895A (en) * 2016-06-12 2016-08-10 广西飞扬环保科技有限公司 Integrated sewage purification system
CN107162337A (en) * 2017-06-26 2017-09-15 华北电力大学 A kind of cold nonirrigated farmland area domestic sewage in rural areas multimedium ecological treatment system and method
CN107162338A (en) * 2017-06-26 2017-09-15 华北电力大学 A kind of microkinetic removes the multimedium processing system and method for antibiotic in waste water
CN107162338B (en) * 2017-06-26 2020-07-21 华北电力大学 Multi-medium treatment system and method for removing antibiotics in wastewater through micro-power
CN107162337B (en) * 2017-06-26 2020-08-14 华北电力大学 Multi-medium ecological treatment system and method for rural domestic sewage in frigid and arid regions
CN108928994A (en) * 2018-07-23 2018-12-04 贵州润喆环境治理有限公司 A kind of small-sized biological recirculating water purification method

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Granted publication date: 20121205

Termination date: 20130229