CN102557338A - Method for treating rural domestic sewage - Google Patents
Method for treating rural domestic sewage Download PDFInfo
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- CN102557338A CN102557338A CN2011104143674A CN201110414367A CN102557338A CN 102557338 A CN102557338 A CN 102557338A CN 2011104143674 A CN2011104143674 A CN 2011104143674A CN 201110414367 A CN201110414367 A CN 201110414367A CN 102557338 A CN102557338 A CN 102557338A
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- filter bed
- sewage
- sedimentation tank
- microkinetic
- aerobic filter
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention discloses a method for treating rural domestic sewage. By the method, a fine grid is used in a pretreatment process to remove large impurities in the sewage, and a horizontal flow sedimentation tank is used for removing suspended matters in the sewage for pretreatment, so that a good process condition is provided for a subsequent aerobic filter bed process; and a micro-power aerobic filter bed is formed by organically combining solar micro-power equipment with an aerobic filter bed, the aeration power of a system is provided by solar energy, and a gradation packing layer is arranged in the filter bed, so that the sewage can be efficiently treated at low power consumption. The method comprises the following steps of: allowing the sewage which flows through the fine grid to flow into the horizontal flow sedimentation tank; and allowing water which flows out of the horizontal flow sedimentation tank to flow into a micro-power aerobic filter bed system for treatment, wherein chemical oxygen demand (COD)Cr, NH3-N and TP of outflow water can reach a first-class B level of Pollutant Discharge Standard of Municipal Wastewater Treatment Plant (GB18918-2002). By the method, the treatment efficiency and the treatment degree of domestic sewage can be improved; and the method makes a small floor space occupied and is low in operation cost.
Description
Technical field
The present invention relates to field of environmental engineering, especially relates to a kind of treatment method for rural sewage.
Background technology
The discharging wantonly that domestic sewage in rural areas by using is not treated can cause the severe contamination of surface water runoff, but polluted source water quality also increases the water supply risk and the processing cost in city, and causes life in the countryside water difficulty.But meanwhile; Owing to receive the restriction of natural condition; Domestic sewage in rural areas by using has dispersion, the characteristics of easily collecting not; Lay on a large scale comparatively difficulty of sewage collecting pipe network, make domestic sewage in rural areas by using can not include large-scale centralized sewage work in and concentrate and handle, can only suit measures to local conditions to seek the treatment method for rural sewage that comparatively is fit to.
At present; The domestic sewage in rural areas by using treatment process unpowered anaerobism biogas technology or the combination procesies of unpowered anaerobism biogas and traditional artificial swamp of adopting more; For the former; Technology has organic pollutant removal effect preferably, but not obvious to the nitrogen, the phosphorus removal effect that contain in the sewage, water outlet enters environment water still can cause the eutrophication pollution problem; For the latter; Under the acting in conjunction of artificial swamp filler, mikrobe and plant; Combination process has removal effect preferably to the nitrogen in the waste water, phosphor contaminant, but that floor space is big, purification efficiency is lower, the wet land system operation is affected by climate change is big etc.
Rectangular sedimentation tank can be removed the most suspended substances that contains in the sewage; Eliminate the influence of the follow-up aerobic ecological filter bed technology of suspended substance; The biological degradation of aerobic filter bed technology utilization aerobic microbiological and the filtration of filler, crown_interception remove organic and nitrogen, phosphor contaminant; Effect and efficient all obviously are superior to artificial wet land system, and the energy consumption problem that produces to aerobic filter bed technology aeration is applied to this aerobic filter bed system with heliotechnics; For the aerator of system provides power, thereby solved the cost problem of system's operation.
Summary of the invention
It is relatively poor to the objective of the invention is to solve existing domestic sewage in rural areas by using treatment effect, and floor space is bigger, and the working cost problem of higher provides a kind of pollution treatment efficient high, and running cost is low, the treatment method for rural sewage that environmental benefit is good.
Treatment method for rural sewage is: domestic sewage in rural areas by using gets into the irrigation canals and ditches that have fine fack, and water is 0.5-0.7m/s through the flow velocity of irrigation canals and ditches, and water is 0.6-0.8m/s through the flow velocity of fine fack, labor cleaning's grid slag,
Domestic sewage in rural areas by using after thick foreign material are removed in the fine fack pre-treatment flows into rectangular sedimentation tank; Rectangular sedimentation tank is divided into 2 groups, alternately parallel running, and the hydraulic detention time of sewage in single group rectangular sedimentation tank is 6-10h; Horizontal flow velocity is 5-7 mm/s; Surface load is 0.35-0.60m3/m2h, clears up once in the mud 1-2 that rectangular sedimentation tank produces month, and the mud that clears is used as organic agricultural fertilizer; After rectangular sedimentation tank was removed the suspended substance that contains in the sewage, domestic sewage in rural areas by using got into the aerobic filter bed of microkinetic, and the aerobic filter bed feed-water end of microkinetic bottom level is provided with the water distribution uniformity pipe; Water (flow) direction is a vertical current, and the aerobic filter bed bottom level of microkinetic is provided with distribution device, and distribution device links to each other with sun power microkinetic aerating apparatus; The aerobic filter bed dissolved oxygen concentration of microkinetic is 2-4mg/L; At 20-30cm place above distribution device supporting layer is set, even placement diameter is the round vent of 10-20mm on the supporting layer, and the width between centers of adjacent holes is 40-50mm; On supporting layer top filler is set; Filler is the mixture of building stones, sand, haydite, and sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, and waste water is 8-16h at the hydraulic detention time of the aerobic filter bed of microkinetic; The aerobic filter bed water outlet of microkinetic CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002).
Described fine fack tilts to install, and the fine fack angle of inclination is the 45-60 degree, and fine fack grizzly bar gap is 16-25mm.Described rectangular sedimentation tank adopts brick or concrete structure, and the rectangular sedimentation tank surface is a rectangle.Described distribution device is single hole film gas pipe or micropore ceramics gas pipe.Described building stones are one or more the mixtures in cobble, zeolite, the gravel, and the building stones size is 20-50mm.
The present invention adopts rectangular sedimentation tank and the aerobic filter bed of sun power microkinetic to handle domestic sewage in rural areas by using for the core combination process, has the processing efficiency height, and treatment effect is good, the characteristics that working cost is low.Rectangular sedimentation tank has been removed suspended substances a large amount of in the domestic sewage in rural areas by using, has effectively eliminated suspended substance to follow-up ecological filter bed influence that plays operation; The aerobic filter bed of sun power microkinetic adopts the power of sun power as aeration; Reduced the cost of operation; The graded stuffing that is provided with in the filter bed has good filtration and crown_interception to pollutants in waste water, and the mikrobe that is adsorbed on simultaneously on the filler also can carry out further biological degradation and purification to pollutent under aerobic condition.Therefore, the present invention has compared with prior art obviously improved the degree of treatment and the efficient of waste water, water outlet CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002); Reduced running cost simultaneously; Basically need not add power consumption, have that treatment process is simple, a convenient management, purification efficiency is high, working cost is low characteristics.
Description of drawings
Accompanying drawing is the treatment method for rural sewage schema.
Embodiment
Shown in accompanying drawing, treatment method for rural sewage is: domestic sewage in rural areas by using gets into the irrigation canals and ditches that have fine fack, and water is 0.5-0.7m/s through the flow velocity of irrigation canals and ditches; Water is 0.6-0.8m/s through the flow velocity of fine fack, labor cleaning's grid slag, and the domestic sewage in rural areas by using after thick foreign material are removed in the fine fack pre-treatment flows into rectangular sedimentation tank; Rectangular sedimentation tank is divided into 2 groups, alternately parallel running, and the hydraulic detention time of sewage in single group rectangular sedimentation tank is 6-10h; Horizontal flow velocity is 5-7 mm/s; Surface load is 0.35-0.60m3/m2h, clears up once in the mud 1-2 that rectangular sedimentation tank produces month, and the mud that clears is used as organic agricultural fertilizer; After rectangular sedimentation tank was removed the suspended substance that contains in the sewage, domestic sewage in rural areas by using got into the aerobic filter bed of microkinetic, and the aerobic filter bed feed-water end of microkinetic bottom level is provided with the water distribution uniformity pipe; Water (flow) direction is a vertical current, and the aerobic filter bed bottom level of microkinetic is provided with distribution device, and distribution device links to each other with sun power microkinetic aerating apparatus; The aerobic filter bed dissolved oxygen concentration of microkinetic is 2-4mg/L; At 20-30cm place above distribution device supporting layer is set, even placement diameter is the round vent of 10-20mm on the supporting layer, and the width between centers of adjacent holes is 40-50mm; On supporting layer top filler is set; Filler is the mixture of building stones, sand, haydite, and sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, and waste water is 8-16h at the hydraulic detention time of the aerobic filter bed of microkinetic; The aerobic filter bed water outlet of microkinetic CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002).
Described fine fack tilts to install, and the fine fack angle of inclination is the 45-60 degree, and fine fack grizzly bar gap is 16-25mm.Described rectangular sedimentation tank adopts brick or concrete structure, and the rectangular sedimentation tank surface is a rectangle.Described distribution device is single hole film gas pipe or micropore ceramics gas pipe.Described building stones are one or more the mixtures in cobble, zeolite, the gravel, and the building stones size is 20-50mm.
The present invention adopts rectangular sedimentation tank and the aerobic filter bed of sun power microkinetic to handle domestic sewage in rural areas by using for the core combination process, has the processing efficiency height, and treatment effect is good, the characteristics that working cost is low.Rectangular sedimentation tank has been removed suspended substances a large amount of in the domestic sewage in rural areas by using, has effectively eliminated the influence of suspended substance to follow-up ecological filter bed long-time running; The aerobic filter bed of sun power microkinetic adopts the power of sun power as aeration; Reduced the cost of operation; The graded stuffing that is provided with in the filter bed has good filtration and crown_interception to pollutants in waste water, and the mikrobe that is adsorbed on simultaneously on the filler also can carry out further biological degradation and purification to pollutent under aerobic condition.Therefore, the present invention has compared with prior art obviously improved the degree of treatment and the efficient of waste water, water outlet CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002); Reduced running cost simultaneously; Basically need not add power consumption, have that treatment process is simple, a convenient management, purification efficiency is high, working cost is low characteristics.
Domestic sewage in rural areas by using comprises through the sewage of being collected by network of drains of the shunting of removing contamination with without the rainwash sewage of the shunting of removing contamination; Flow into the fine fack pretreatment unit; Waste water is in the process of fine fack of flowing through; Because the front end that the interception function of fine fack, foreign material in the waste water and macrobead pollutent are dammed in the grid water inlet becomes the grid slag, is regularly cleared up according to the grid quantity of slag of accumulation by manual work.
Through the pretreated domestic sewage in rural areas by using of fine fack, get into rectangular sedimentation tank and carry out precipitation process.Rectangular sedimentation tank has been removed suspended substances a large amount of in the domestic sewage in rural areas by using, has effectively eliminated the influence of suspended substance to follow-up ecological filter bed long-time running; Rectangular sedimentation tank adopts echelon design, and alternate run helps labor cleaning's mud of rectangular sedimentation tank, and the mud that clears contains organic matter, uses as organic agricultural fertilizer.
Remove the most suspended substances in the sewage through rectangular sedimentation tank, after the influence of the follow-up aerobic ecological filter bed technology of elimination suspended substance, domestic sewage in rural areas by using gets into the aerobic filter bed of microkinetic through the water distribution uniformity pipe.The aerobic filter bed of microkinetic is provided with distribution device in the bottom; Distribution device links to each other with sun power microkinetic aerating apparatus; Sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, and solar panel is an electric energy with conversion of solar energy, store battery with unnecessary electrical power storage rise be used as subsequent use; Gas blower is sent air into distribution device, and sun power microkinetic aerating apparatus is that distribution device provides aeration power and aeration source of the gas.The distribution device top is provided with supporting layer, evenly is furnished with round vent on the supporting layer, and the mixture filler of building stones, sand, haydite is set on supporting layer top simultaneously.Domestic sewage in rural areas by using is in the aerobic filter bed of microkinetic; On the one hand because the effect of filler; Microbial biomass is more in the aerobic filter bed of microkinetic, under the aeration environment, aerobic microbiological through aerobic biodegradation and biological assimilation process with the most of pollutant removal in the domestic sewage in rural areas by using; On the other hand, dam and chemisorption owing to receive the physics of filler, domestic sewage in rural areas by using will further be purified.CODcr, NH3-N and the TP of the final aerobic filter bed water outlet of microkinetic can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002).
Embodiment 1
Domestic sewage in rural areas by using gets into the irrigation canals and ditches that have fine fack, and water is 0.5m/s through the flow velocity of irrigation canals and ditches, and water is 0.6m/s through the flow velocity of fine fack; Labor cleaning's grid slag, the domestic sewage in rural areas by using after thick foreign material are removed in the fine fack pre-treatment flows into rectangular sedimentation tank, and rectangular sedimentation tank is divided into 2 groups; Alternately parallel running; The hydraulic detention time of sewage in single group rectangular sedimentation tank is 6h, and horizontal flow velocity is 5 mm/s, and surface load is 0.35m3/m2h; The mud that rectangular sedimentation tank produces was cleared up once in 1 month, and the mud that clears is used as organic agricultural fertilizer; After rectangular sedimentation tank was removed the suspended substance that contains in the sewage, domestic sewage in rural areas by using got into the aerobic filter bed of microkinetic, and the aerobic filter bed feed-water end of microkinetic bottom level is provided with the water distribution uniformity pipe; Water (flow) direction is a vertical current, and the aerobic filter bed bottom level of microkinetic is provided with distribution device, and distribution device links to each other with sun power microkinetic aerating apparatus; The aerobic filter bed dissolved oxygen concentration of microkinetic is 2mg/L; At 20cm place above distribution device supporting layer is set, even placement diameter is the round vent of 10mm on the supporting layer, and the width between centers of adjacent holes is 40mm; On supporting layer top filler is set; Filler is the mixture of building stones, sand, haydite, and sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, and waste water is 8h at the hydraulic detention time of the aerobic filter bed of microkinetic; The aerobic filter bed water outlet of microkinetic CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002).
Embodiment 2
Domestic sewage in rural areas by using gets into the irrigation canals and ditches that have fine fack, and water is 0.7m/s through the flow velocity of irrigation canals and ditches, and water is 0.8m/s through the flow velocity of fine fack; Labor cleaning's grid slag, the domestic sewage in rural areas by using after thick foreign material are removed in the fine fack pre-treatment flows into rectangular sedimentation tank, and rectangular sedimentation tank is divided into 2 groups; Alternately parallel running; The hydraulic detention time of sewage in single group rectangular sedimentation tank is 10h, and horizontal flow velocity is 7 mm/s, and surface load is 0.60m3/m2h; The mud that rectangular sedimentation tank produces was cleared up once in 2 months, and the mud that clears is used as organic agricultural fertilizer; After rectangular sedimentation tank was removed the suspended substance that contains in the sewage, domestic sewage in rural areas by using got into the aerobic filter bed of microkinetic, and the aerobic filter bed feed-water end of microkinetic bottom level is provided with the water distribution uniformity pipe; Water (flow) direction is a vertical current, and the aerobic filter bed bottom level of microkinetic is provided with distribution device, and distribution device links to each other with sun power microkinetic aerating apparatus; The aerobic filter bed dissolved oxygen concentration of microkinetic is 4mg/L; At 30cm place above distribution device supporting layer is set, even placement diameter is the round vent of 20mm on the supporting layer, and the width between centers of adjacent holes is 50mm; On supporting layer top filler is set; Filler is the mixture of building stones, sand, haydite, and sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, and waste water is 16h at the hydraulic detention time of the aerobic filter bed of microkinetic; The aerobic filter bed water outlet of microkinetic CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002).
Claims (5)
1. a treatment method for rural sewage is characterized in that domestic sewage in rural areas by using gets into the irrigation canals and ditches that have fine fack, and water is 0.5-0.7m/s through the flow velocity of irrigation canals and ditches; Water is 0.6-0.8m/s through the flow velocity of fine fack, labor cleaning's grid slag, and the domestic sewage in rural areas by using after thick foreign material are removed in the fine fack pre-treatment flows into rectangular sedimentation tank; Rectangular sedimentation tank is divided into 2 groups, alternately parallel running, and the hydraulic detention time of sewage in single group rectangular sedimentation tank is 6-10h; Horizontal flow velocity is 5-7 mm/s; Surface load is 0.35-0.60m3/m2h, clears up once in the mud 1-2 that rectangular sedimentation tank produces month, and the mud that clears is used as organic agricultural fertilizer; After rectangular sedimentation tank was removed the suspended substance that contains in the sewage, domestic sewage in rural areas by using got into the aerobic filter bed of microkinetic, and the aerobic filter bed feed-water end of microkinetic bottom level is provided with the water distribution uniformity pipe; Water (flow) direction is a vertical current, and the aerobic filter bed bottom level of microkinetic is provided with distribution device, and distribution device links to each other with sun power microkinetic aerating apparatus; The aerobic filter bed dissolved oxygen concentration of microkinetic is 2-4mg/L; At 20-30cm place above distribution device supporting layer is set, even placement diameter is the round vent of 10-20mm on the supporting layer, and the width between centers of adjacent holes is 40-50mm; On supporting layer top filler is set; Filler is the mixture of building stones, sand, haydite, and sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, and waste water is 8-16h at the hydraulic detention time of the aerobic filter bed of microkinetic; The aerobic filter bed water outlet of microkinetic CODcr, NH
3-N and TP can reach " urban wastewater treatment firm pollutant emission standard " one-level B standard (GB18918-2002).
2. a kind of treatment method for rural sewage according to claim 1 is characterized in that described fine fack tilts to install, and the fine fack angle of inclination is the 45-60 degree, and fine fack grizzly bar gap is 16-25mm.
3. a kind of treatment method for rural sewage according to claim 1 is characterized in that described rectangular sedimentation tank adopts brick or concrete structure, and the rectangular sedimentation tank surface is a rectangle.
4. a kind of treatment method for rural sewage according to claim 1 is characterized in that described distribution device is single hole film gas pipe or micropore ceramics gas pipe.
5. a kind of treatment method for rural sewage according to claim 1 is characterized in that described building stones are one or more the mixtures in cobble, zeolite, the gravel, and the building stones size is 20-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104143674A CN102557338A (en) | 2011-12-13 | 2011-12-13 | Method for treating rural domestic sewage |
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| CN2011104143674A CN102557338A (en) | 2011-12-13 | 2011-12-13 | Method for treating rural domestic sewage |
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| CN102557338A true CN102557338A (en) | 2012-07-11 |
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| CN2011104143674A Pending CN102557338A (en) | 2011-12-13 | 2011-12-13 | Method for treating rural domestic sewage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347572A (en) * | 2015-12-02 | 2016-02-24 | 仲小勇 | Automobile wastewater circulating treatment system and automobile wastewater circulating treatment method |
| CN105693037A (en) * | 2016-04-14 | 2016-06-22 | 安徽省环境科学研究院 | Method and process system for deep purification of eutrophic water body |
| CN107540174A (en) * | 2017-10-27 | 2018-01-05 | 安徽中韩净化设备有限公司 | A kind of domestic sewage in rural areas purification process technique |
| CN109437485A (en) * | 2018-12-06 | 2019-03-08 | 江西绿鄱环保科技有限公司 | Cycle household rural domestic sewage treatment equipment in a kind of microkinetic |
| CN113149363A (en) * | 2021-05-06 | 2021-07-23 | 杜普利 | MBR (membrane bioreactor) integrated treatment method for rural domestic sewage |
| CN114057352A (en) * | 2021-10-15 | 2022-02-18 | 尚川（北京）水务有限公司 | Circulating biological filter rural domestic sewage treatment system and treatment process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347572A (en) * | 2015-12-02 | 2016-02-24 | 仲小勇 | Automobile wastewater circulating treatment system and automobile wastewater circulating treatment method |
| CN105693037A (en) * | 2016-04-14 | 2016-06-22 | 安徽省环境科学研究院 | Method and process system for deep purification of eutrophic water body |
| CN107540174A (en) * | 2017-10-27 | 2018-01-05 | 安徽中韩净化设备有限公司 | A kind of domestic sewage in rural areas purification process technique |
| CN109437485A (en) * | 2018-12-06 | 2019-03-08 | 江西绿鄱环保科技有限公司 | Cycle household rural domestic sewage treatment equipment in a kind of microkinetic |
| CN113149363A (en) * | 2021-05-06 | 2021-07-23 | 杜普利 | MBR (membrane bioreactor) integrated treatment method for rural domestic sewage |
| CN114057352A (en) * | 2021-10-15 | 2022-02-18 | 尚川（北京）水务有限公司 | Circulating biological filter rural domestic sewage treatment system and treatment process |
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Application publication date: 20120711 |