CN102145968A - Rural domestic sewage treatment process - Google Patents
Rural domestic sewage treatment process Download PDFInfo
- Publication number
- CN102145968A CN102145968A CN2011101275718A CN201110127571A CN102145968A CN 102145968 A CN102145968 A CN 102145968A CN 2011101275718 A CN2011101275718 A CN 2011101275718A CN 201110127571 A CN201110127571 A CN 201110127571A CN 102145968 A CN102145968 A CN 102145968A
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- domestic sewage
- anaerobic digester
- rural areas
- filter bed
- filler
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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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- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a rural domestic sewage treatment process. In the rural domestic sewage treatment process, a fine grid is used in a pretreatment process to remove large particle pollutants in sewage; an underground anaerobic digester is adopted to carry out hydrolysis acidification treatment so as to provide good conditions for a subsequent aerobic process; a micro power aerobic filter bed organically combines a solar energy micro power technology with an aerobic filter bed technology; a system is supplied with aeration power by solar energy; and a grading packing layer is arranged in the filter bed so as to realize low consumption and high efficiency treatment of the sewage. The rural domestic sewage treatment process particularly comprises the following procedures that after passing through the fine grid, the sewage enters the anaerobic digester; an elastic packing or a flexible packing is arranged in the anaerobic digester; and yielding water flowing out from the anaerobic digester enters the micro power aerobic filter bed system to be treated, wherein CODcr (Chemical Oxygen Demand), NH3-N (index of the ammonia nitrogen content in the sewage) and TP (total phosphorus) of the yielding water can reach the primary standard B of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002). Due to the adoption of the rural domestic sewage treatment process, the treatment efficiency and the treatment degree of the domestic sewage can be improved. The rural domestic sewage treatment process is not limited by areas or air temperature and has small occupied area and low operation cost.
Description
Technical field
The present invention relates to field of environmental engineering, especially relates to a kind of domestic sewage in rural areas by using treatment process.
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 be subjected to the restriction of natural condition, domestic sewage in rural areas by using has dispersion, the characteristics of easily collecting not, lay comparatively difficulty of sewage collecting pipe network on a large scale, make domestic sewage in rural areas by using can not include large-scale centralized sewage work in and concentrate and to handle, can only suit measures to local conditions to seek the efficient sewage treatment process and the method that comparatively are 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 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 sanitary 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, microorganism 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.
Buried anaerobic digester can be when utilizing anaerobic digestion to eliminate organic contamination, improving waste water B/C, overcome the remarkably influenced of temperature Change to the anaerobic digestion effect, 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 better than artificial wet land system, energy consumption problem at aerobic filter bed technology aeration generation, heliotechnics is applied to this aerobic filter bed system, for the aerator of system provides power, thereby solved the cost problem of system's operation.In the processing of domestic sewage in rural areas by using, though buried anaerobic digester and sun power microkinetic all have application separately, use the processing that the aerobic filter bed combination process of buried anaerobic digester+sun power microkinetic is used for domestic sewage in rural areas by using and do not see relevant report.
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 height, the domestic sewage in rural areas by using treatment process that environmental benefit is good.
The domestic sewage in rural areas by using treatment process is: domestic sewage in rural areas by using enters ditch or the irrigation canals and ditches that have fine fack, water is 0.5-0.7m/s through the flow velocity in ditch or the irrigation canals and ditches, water is 0.6-0.8m/s through the flow velocity of fine fack, labor cleaning's grid slag, the buried anaerobic digester in domestic sewage in rural areas by using inflow place after the big particle thing is removed in the fine fack pre-treatment, setting out the water hole apart from 30-40cm place, buried anaerobic digester top, the posticum flow velocity is 0.4-0.6m/s, the 20-30cm place is provided with the upper strata filler support below posticum, at 30-40cm place at the bottom of buried anaerobic digester lower floor's filler support is set, at fixing hanging filler between the two-layer filler support up and down, the filler filling ratio is 20-30%, the hydraulic detention time of domestic sewage in rural areas by using in buried anaerobic digester is 10-24h, the mud 2-3 cleaning that buried anaerobic digester produces 1 time, the mud that clears is used as organic agricultural fertilizer; After buried anaerobic digester is removed partial organic substances and is improved the biodegradability of waste water, domestic sewage in rural areas by using enters the aerobic filter bed of microkinetic, the aerobic filter bed feed-water end of microkinetic bottom is provided with the water distribution uniformity pipe, water (flow) direction is a horizontal flow, the aerobic filter bed of microkinetic bottom is provided with distribution device, 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, the 20-30cm place is provided with supporting layer above the distance distribution device, even placement diameter is the round vent of 10mm on the supporting layer, the width between centers of adjacent holes is 40-50mm, on supporting layer top filler is set, filler is building stones, sand, the mixture of haydite, sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, waste water is 8-12h 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 the urban wastewater treatment firm pollutant emission standard, the one-level B standard of 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 buried anaerobic digester adopts brick or concrete structure, and buried anaerobic digester is spherical.Described filler is elastic filler or soft-filler.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, and is big according to lower floor's particle diameter, and the principle that the upper strata particle diameter is little is carried out grating.
The present invention adopts buried anaerobic digester 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.Buried anaerobic digester helps insulation, has alleviated the influence of temperature to anaerobic digestion, simultaneously in the digester elastic filler is set or wadding has increased the save power of anaerobic sludge in the pond, has strengthened the effect of anaerobic digestion; 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 microorganism 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, substantially do not need to add power consumption, have that treatment process is simple, convenient management, purification efficiency height, characteristics that working cost is low.
Description of drawings
Accompanying drawing is domestic sewage in rural areas by using processing technological flow figure.
Embodiment
As shown in drawings, the domestic sewage in rural areas by using treatment process is: domestic sewage in rural areas by using enters ditch or the irrigation canals and ditches that have fine fack, water is 0.5-0.7m/s through the flow velocity in ditch or the irrigation canals and ditches, water is 0.6-0.8m/s through the flow velocity of fine fack, labor cleaning's grid slag, the buried anaerobic digester in domestic sewage in rural areas by using inflow place after the big particle thing is removed in the fine fack pre-treatment, setting out the water hole apart from 30-40cm place, buried anaerobic digester top, the posticum flow velocity is 0.4-0.6m/s, the 20-30cm place is provided with the upper strata filler support below posticum, at 30-40cm place at the bottom of buried anaerobic digester lower floor's filler support is set, at fixing hanging filler between the two-layer filler support up and down, the filler filling ratio is 20-30%, the hydraulic detention time of domestic sewage in rural areas by using in buried anaerobic digester is 10-24h, the mud 2-3 cleaning that buried anaerobic digester produces 1 time, the mud that clears is used as organic agricultural fertilizer; After buried anaerobic digester is removed partial organic substances and is improved the biodegradability of waste water, domestic sewage in rural areas by using enters the aerobic filter bed of microkinetic, the aerobic filter bed feed-water end of microkinetic bottom is provided with the water distribution uniformity pipe, water (flow) direction is a horizontal flow, the aerobic filter bed of microkinetic bottom is provided with distribution device, 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, the 20-30cm place is provided with supporting layer above the distance distribution device, even placement diameter is the round vent of 10mm on the supporting layer, the width between centers of adjacent holes is 40-50mm, on supporting layer top filler is set, filler is building stones, sand, the mixture of haydite, sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, waste water is 8-12h 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 buried anaerobic digester adopts brick or concrete structure, and buried anaerobic digester is spherical.Described filler is elastic filler or soft-filler.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, and is big according to lower floor's particle diameter, and the principle that the upper strata particle diameter is little is carried out grating.
Embodiment:
Domestic sewage in rural areas by using comprises through the sanitary 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 interception function of fine fack, the front end that foreign material in the waste water and macrobead pollutent are dammed in the grid water inlet becomes the grid slag, by manually regularly clearing up according to the grid quantity of slag of accumulation.
Through the pretreated domestic sewage in rural areas by using of fine fack, enter buried anaerobic digester.Be filled with microbe stuffing in the buried anaerobic digester, help the accumulation of anaerobic digestion microorganism in buried anaerobic digester, improve anaerobic digestion microbes biomass in the pond.The lower molecular weight organic pollutant that contains in the domestic sewage in rural areas by using obtains part by biological degradation, biological assimilation process and removes under microbial process; The high molecular weight contaminants that contains in the domestic sewage in rural areas by using issues unboiled water at microbial process and separates reaction, and macromolecule hydrolysis becomes low molecular weight substance, thereby has improved the biodegradability of domestic sewage in rural areas by using.Because the growth of anaerobion is longer generation time, therefore anaerobic digestion is the lower bioprocess of a kind of sludge yield, the excess sludge of the interior generation of anaerobic digester (2-3) year just needs cleaning 1 time, and the mud that clears contains a large amount of organic matters, uses as organic agricultural fertilizer.
After buried anaerobic digester was removed partial organic substances and improved the biodegradability of waste water, domestic sewage in rural areas by using entered 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, solar panel is an electric energy with conversion of solar energy, store battery with unnecessary electrical power storage rise be used as standby, gas blower is sent air into distribution device, and sun power microkinetic aerating apparatus provides aeration power and aeration source of the gas for distribution device.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 by 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 be subjected to 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).
Claims (6)
1. domestic sewage in rural areas by using treatment process, it is characterized in that domestic sewage in rural areas by using enters ditch or the irrigation canals and ditches that have fine fack, water is 0.5-0.7m/s through the flow velocity in ditch or the irrigation canals and ditches, water is 0.6-0.8m/s through the flow velocity of fine fack, labor cleaning's grid slag, the buried anaerobic digester in domestic sewage in rural areas by using inflow place after the big particle thing is removed in the fine fack pre-treatment, setting out the water hole apart from 30-40cm place, buried anaerobic digester top, the posticum flow velocity is 0.4-0.6m/s, the 20-30cm place is provided with the upper strata filler support below posticum, at 30-40cm place at the bottom of buried anaerobic digester lower floor's filler support is set, at fixing hanging filler between the two-layer filler support up and down, the filler filling ratio is 20-30%, the hydraulic detention time of domestic sewage in rural areas by using in buried anaerobic digester is 10-24h, the mud 2-3 cleaning that buried anaerobic digester produces 1 time, the mud that clears is used as organic agricultural fertilizer; After buried anaerobic digester is removed partial organic substances and is improved the biodegradability of waste water, domestic sewage in rural areas by using enters the aerobic filter bed of microkinetic, the aerobic filter bed feed-water end of microkinetic bottom is provided with the water distribution uniformity pipe, water (flow) direction is a horizontal flow, the aerobic filter bed of microkinetic bottom is provided with distribution device, 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, the 20-30cm place is provided with supporting layer above the distance distribution device, even placement diameter is the round vent of 10mm on the supporting layer, the width between centers of adjacent holes is 40-50mm, on supporting layer top filler is set, filler is building stones, sand, the mixture of haydite, sun power microkinetic aerating apparatus comprises solar panel, store battery, gas blower, waste water is 8-12h 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 the urban wastewater treatment firm pollutant emission standard, the one-level B standard of GB18918-2002.
2. a kind of domestic sewage in rural areas by using treatment process 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 domestic sewage in rural areas by using treatment process according to claim 1 is characterized in that described buried anaerobic digester adopts brick or concrete structure, and buried anaerobic digester is spherical.
4. a kind of domestic sewage in rural areas by using treatment process according to claim 1 is characterized in that described filler is elastic filler or soft-filler.
5. a kind of domestic sewage in rural areas by using treatment process according to claim 1 is characterized in that described distribution device is single hole film gas pipe or micropore ceramics gas pipe.
6. a kind of domestic sewage in rural areas by using treatment process according to claim 1, it is characterized in that described building stones are one or more the mixtures in cobble, zeolite, the gravel, the building stones size is 20-50mm, and is big according to lower floor's particle diameter, and the principle that the upper strata particle diameter is little is carried out grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101275718A CN102145968A (en) | 2011-05-17 | 2011-05-17 | Rural domestic sewage treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101275718A CN102145968A (en) | 2011-05-17 | 2011-05-17 | Rural domestic sewage treatment process |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424476A (en) * | 2011-10-27 | 2012-04-25 | 北京国环清华环境工程设计研究院有限公司 | Sewage treatment system supplied by solar power and sewage treatment method |
| CN102557338A (en) * | 2011-12-13 | 2012-07-11 | 浙江省环境保护科学设计研究院 | Method for treating rural domestic sewage |
| CN102603118A (en) * | 2012-03-12 | 2012-07-25 | 浙江省环境保护科学设计研究院 | Sewage treatment method based on blasting laminated artificial wetland |
| CN102897977A (en) * | 2012-10-12 | 2013-01-30 | 常州大学 | Method for treating domestic sewage in industrial concentration districts of villages and small towns |
| CN103030254A (en) * | 2013-01-09 | 2013-04-10 | 广州大学 | Treatment method for low-carbon-source domestic wastewater |
| 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 |
| CN106316004A (en) * | 2016-11-07 | 2017-01-11 | 平潭盖亚环保科技有限公司 | High-concentration organic wastewater direct deep purification method |
| 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 |
| CN107601789A (en) * | 2017-11-06 | 2018-01-19 | 成都信息工程大学 | A kind of integrated form integral life sewage processing method |
| CN107963776A (en) * | 2017-11-10 | 2018-04-27 | 上海曼斐电器贸易有限公司 | A kind of sewage-treatment plant |
| CN112174322A (en) * | 2020-09-24 | 2021-01-05 | 贵州润鸿环保科技有限公司 | Box centralized middle and small-scale domestic sewage modular treatment system |
| CN114085003A (en) * | 2021-11-22 | 2022-02-25 | 中鼎特金秦皇岛科技股份有限公司 | Micro-power intelligent rural drought-to-toilet-changing feces recycling treatment system |
| CN114853168A (en) * | 2022-06-20 | 2022-08-05 | 范保峰 | Sewage treatment device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424476A (en) * | 2011-10-27 | 2012-04-25 | 北京国环清华环境工程设计研究院有限公司 | Sewage treatment system supplied by solar power and sewage treatment method |
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| CN102603118A (en) * | 2012-03-12 | 2012-07-25 | 浙江省环境保护科学设计研究院 | Sewage treatment method based on blasting laminated artificial wetland |
| CN102897977A (en) * | 2012-10-12 | 2013-01-30 | 常州大学 | Method for treating domestic sewage in industrial concentration districts of villages and small towns |
| CN102897977B (en) * | 2012-10-12 | 2014-02-05 | 常州大学 | Method for treating domestic sewage in industrial concentration districts of villages and small towns |
| CN103030254A (en) * | 2013-01-09 | 2013-04-10 | 广州大学 | Treatment method for low-carbon-source domestic wastewater |
| 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 |
| CN106316004B (en) * | 2016-11-07 | 2017-09-01 | 江西盖亚环保科技有限公司 | A kind of method of the direct deep purifying of high concentrated organic wastewater |
| CN106316004A (en) * | 2016-11-07 | 2017-01-11 | 平潭盖亚环保科技有限公司 | High-concentration organic wastewater direct deep purification method |
| WO2018082235A1 (en) * | 2016-11-07 | 2018-05-11 | 江西盖亚环保科技有限公司 | Direct deep purification method for high concentration organic waste water |
| 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 |
| CN107601789A (en) * | 2017-11-06 | 2018-01-19 | 成都信息工程大学 | A kind of integrated form integral life sewage processing method |
| CN107963776A (en) * | 2017-11-10 | 2018-04-27 | 上海曼斐电器贸易有限公司 | A kind of sewage-treatment plant |
| CN112174322A (en) * | 2020-09-24 | 2021-01-05 | 贵州润鸿环保科技有限公司 | Box centralized middle and small-scale domestic sewage modular treatment system |
| CN114085003A (en) * | 2021-11-22 | 2022-02-25 | 中鼎特金秦皇岛科技股份有限公司 | Micro-power intelligent rural drought-to-toilet-changing feces recycling treatment system |
| CN114853168A (en) * | 2022-06-20 | 2022-08-05 | 范保峰 | Sewage treatment device |
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Application publication date: 20110810 |