CN103880244B - Comprehensive treatment method for liquid dung of livestock and poultry and domestic wastewater in country - Google Patents
Comprehensive treatment method for liquid dung of livestock and poultry and domestic wastewater in country Download PDFInfo
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- CN103880244B CN103880244B CN201410099774.4A CN201410099774A CN103880244B CN 103880244 B CN103880244 B CN 103880244B CN 201410099774 A CN201410099774 A CN 201410099774A CN 103880244 B CN103880244 B CN 103880244B
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Abstract
The invention relates to a comprehensive treatment method for liquid dung of livestock and poultry and domestic wastewater in a country, and is used for solving the problems of random discharge of comprehensive wastewater by peasant household and shortage of matching treatment facilities. The comprehensive treatment method comprises steps of mixing the domestic wastewater of peasant household with excrement sewage of livestock and poultry according to weight ratio of 1:1, then pre-treating sequentially by a coarse screen, a water collecting tank and a fine screen, and treating by an anaerobic biofilter, a two-stage biological aerated filter and a constructed wetland, wherein macromolecular organic matters are degraded into micromolecular organic matters through the anaerobic biofilter, so that the biochemical degradability of the wastewater is improved; the effluent passing through the two-stage biological aerated filter flows back to the anaerobic biofilter for nitrogen removal by denitrification; two-stage aeration is mainly used for removing most organic matters, and most ammonia nitrogen is converted into nitrate nitrogen through the action of nitrobacterium; the constructed wetland is mainly used for further purification treatment on the wastewater, so that the effluent reaches the standard and is discharged.
Description
Technical field
The present invention relates to rural comprehensive waste water, i.e. the treatment process of the sanitary sewage of waste water of livestock poultry, people, belong to wastewater processing technology and Appropriate application field.
Background technology
Along with the fast development of rural economy, rural comprehensive wastewater discharge increases gradually, and Rural areas environmental aspect is gone from bad to worse, and environmental quality obviously declines, directly threaten the living environment of the vast farmers masses and healthy, constrain the sound development of rural economy.
Rural area peasant household often cultivates 2 ~ 5 pigs, relative to people, the wastewater flow rate that livestock and poultry produce is more, the sewage quantity of a pig generation is 7 times that a people produces sewage quantity, in waste water of livestock poultry, organic content is that people produces the 4-6 of wastewater through organic matter content doubly, and simultaneously because aquaculture small scale, scope are comparatively wide, unified collection and treatment is difficult to perform, peasant household's comprehensive wastewater cannot effectively be administered, and most of waste water finally collect inflow river, water environment.At present, one of rural comprehensive waste water main source becoming water pollutant.
The shortcomings such as the Main Patterns of current rural domestic sewage treatment has: 1. build traditional septic tank, and traditional septic tank exists organics removal ability, do not meet hygienic standard, regularly takes out excrement, traffic capacity is large, management inconvenience.2. build a methane generating pit, build a large amount of methane-generating pit, but methane-generating pit affects by temperature comparatively large on the processing efficiency of comprehensive wastewater, the waste water that peasant household produces is all direct discharge.3. new village sewage water treatment method, as artificial wetland treatment, land treatment systems, activated sludge process etc.But its domestic sewage in rural areas produced mainly for people, does not have the treatment process of the comprehensive wastewater produced for single peasant household people and livestock and poultry so far.Such as patent " a kind of Low-energy self-circulation treatment method for rural sewage ", the number of applying for a patent 201310006853.1, it is a kind for the treatment of process of the sanitary sewage mainly for people's generation, and the comprehensive wastewater utilizing this method peasant household to produce can not get effective process.At present, but fewer for the research of rural comprehensive wastewater treatment, and compare with variation with the maturation of unified collection and treatment technology, the also deficient research to decentralized type sewage process, deficienter to the technology of rural comprehensive waste water at present simultaneously.Therefore, for rural comprehensive the characteristics of bleach effluent, the rural comprehensive waste water treatment process that research is suitable and method seem very necessary.
Summary of the invention
Low in order to overcome rural comprehensive wastewater treatment rate, easily to problems such as environments, the present invention proposes anaerobic biofilter-one-level BAF-secondary BAF-ecological wetland treatment process, for the treatment of the comprehensive wastewater that rural area peasant household produces.
The present invention realizes above-mentioned purpose like this:
The integrated conduct method of a kind of rural area livestock and poultry liquid dung, sanitary sewage, comprise Wastewater Pretreatment, Prepositive denitrification bio-filter process and wetland variation, Prepositive denitrification bio-filter process comprises the process of upflow type anaerobic biological filter, the process of two-stage upflowing aerobic biofilter.
Through the grid filtration of the grid filtration of 50 mm, the balanced waste water of water collecting basin, 3 mm after sanitary sewage is mixed with poultry liquid dung 1:1, suspended substance in removing comprehensive wastewater, prevent foreign material from blocking water inlet pipe and biological filter on the one hand, realize gas, being uniformly distributed of water, on the other hand organic compost can be carried out, for the farm crop of peasant household provide organic fertilizer through the grid filtration of 50 mm, the balanced waste water of water collecting basin, waste residue that the grid filtration of 3 mm produces.Pretreated waste water sends into the upflow type anaerobic biological filter containing cinder filler with the flow of 90 mL/min, hydraulic retention 4h, in described upflow type anaerobic biological filter, dissolved oxygen concentration is lower than 1 mg/L, wherein filtrate accounts for 1/5 ~ 1/3 of filter tank volume, because the specific surface area of cinder is comparatively large, microorganism is easy in cinder surface growth, improves the bio-degradable of waste water, part that can be removed COD simultaneously, total COD clearance reaches 40%.The one-level upflow type aerating biological filter that waste water after anaerobic treatment is sent into containing cinder filler processes, hydraulic retention 3h, in described one-level upflow type aerating biological filter, dissolved oxygen concentration is higher than 4 mg/L, wherein filtrate accounts for 1/4 ~ 1/3 of filter tank volume, in first step BAF, comprehensive wastewater concentration is higher, a large amount of bacterium adapting to high-concentration waste water is there is in this biological filter, ciliate echinid class, the microorganisms such as ciliate suction pipe insects, major part organism and ammonia nitrogen are removed at this, through this stage processing, the clearance of total COD can reach 67.76%, ammonia nitrogen removal frank is 89.02%.Then be the secondary upflow type aerating biological filter of cinder through filler, there is the microorganisms such as a large amount of adaptation low concentration wastewater point caterpillar genus, rotifers, threadworms in this biological filter, further comprehensive wastewater is processed, hydraulic retention 3h, in described one-level upflow type aerating biological filter, dissolved oxygen concentration is higher than 4 mg/L, wherein filtrate accounts for 1/4 ~ 1/3 of filter tank volume, and after secondary aeration, total COD clearance reaches 75%, and ammonia nitrogen removal frank reaches 99.32%.Secondary aeration effluent recycling enters anaerobic biofilter and carries out denitrification denitrogenation, and due to the diluting effect of recirculation water, makes front establishment method remove COD and NH
3the stability of-N is higher.Process water finally flows into artificial wet land treating system, purifies further water outlet.The filler of artificial wet land treating system is divided into three layers, is soil, cinder, gravel from top to bottom successively.
The advantage of this rural comprehensive sewage treatment technology process and method: (1) power consumption is low, and floor space is little.Power system of the present invention is a peristaltic pump, two electromagnetic air pumps; Water collecting basin in treatment unit, anaerobic pond, aeration tank all replace with plastic tank or plastic box, and floor space is little.(2) this treatment process operation is simple, input cost, runs that capital, maintenance cost are lower, routine maintenance simple and convenient management, and equipment can intermitten service, stop if long-time need not after re-use, its facility can recover normal operation in several days.Equipment, once run, except suitable management, no longer needs other fees.(3) the effective pollutent such as organics removal, nitrogen, phosphorus.Because waste water experienced by hydrolysis, acidifying, product acid and methane phase four-stage in anaerobic biofilter, larger molecular organics can be degraded to small organic molecule, improves the biodegradable of waste water, improves the treatment effect of waste water.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, present method is further illustrated.
Fig. 1 is Rural Waste Water processing technological flow figure.
Fig. 2 is that treatment process is to comprehensive wastewater removal efficiency figure.
Embodiment
Below in conjunction with accompanying drawing, present treatment technical process and method are described in detail
Fig. 1 is rural comprehensive sewage treatment technology process figure.Pre-treatment is carried out through coarse rack, water collecting basin, fine fack successively after the sanitary sewage mixing that waste water of livestock poultry and people produce, comprehensive wastewater processes through anaerobic biofilter, two-stage aerated biological filter afterwards, partially disposed water is back to anaerobic biofilter and carries out denitrification denitrogenation, waste water after Air Exposure flows into artificial wet land system and is further processed sewage, and water quality is purified.The effect of coarse rack is the large suspended substance of removing and floating matter; Water collecting basin has the effect of settling pit, for removing larger particles; Fine fack is mainly used in removing suspended substance less in waste water, prevents the water inlet pipe blocking peristaltic pump.Anaerobic biofilter, mainly makes larger molecular organics be degraded into small organic molecule by acidication effect, improves the bio-degradable of waste water, carries out denitrification denitrogenation simultaneously; Two-stage aerated biological filter is mainly used in removing most organism in waste water, and makes ammonia nitrogen change nitric nitrogen under the effect of nitrifier.Artificial swamp is mainly further processed aeration tank water outlet, water quality is purified again, wet land treating system is many-sided to the waste water Water warfare mechanism of action, has the adsorption of physics settlement action, chemical precipitation, soil, the metabolism of microorganism.The water outlet of wet land system can qualified discharge.
Fig. 2 be with rural area, reservoir area of Three Gorges casual household's comprehensive wastewater for handling object, utilize present treatment technique to the treatment effect figure of comprehensive wastewater.Test period is 40 days, and the mean value of the indices of comprehensive wastewater is respectively: COD 745.77 mg/L; Ammonia nitrogen 336.97 mg/L; Total phosphorus 28.97 mg/L.Effluent index is respectively: COD 68.90 mg/L; Ammonia nitrogen 1.72 mg/L; Total phosphorus 3.46 mg/L.Present treatment technique to the clearance of COD, ammonia nitrogen, total phosphorus in rural comprehensive waste water with monitoring time changing conditions as shown in Figure 2, the average removal rate of COD, ammonia nitrogen, total phosphorus is respectively 90 %, 99.44% and 87.2 %, this treatment process is better to rural comprehensive water treatment effect, and effluent quality meets national agricultural irrigation water quality standard.The gravity flow ground irrigation water that after process, water can be used for before and after peasant household house uses.
Claims (4)
1. the integrated conduct method of a rural area livestock and poultry liquid dung, sanitary sewage, comprise Wastewater Pretreatment, Prepositive denitrification bio-filter process and wetland variation, it is characterized in that: Prepositive denitrification bio-filter process comprises the process of upflow type anaerobic biological filter, the process of two-stage upflowing aerobic biofilter
Described Prepositive denitrification bio-filter process is that pretreated waste water is sent into upflow type anaerobic biological filter with the flow of 90 ~ 100 mL/min, hydraulic detention time 4 h; Waste water after anaerobic treatment enters one-level upflow type aerating biological filter successively, hydraulic detention time 3 h, secondary upflow type aerating biological filter, hydraulic detention time 3h;
The water outlet of secondary aeration enters anaerobic biofilter with the backflow of the flow of 90-100mL/min, wetland variation is carried out in all the other secondary aeration water outlets, in upflow type anaerobic biological filter, dissolved oxygen concentration is lower than 1 mg/L, wherein filtrate accounts for 1/5 ~ 1/3 of filter tank volume, in one-level upflow type aerating biological filter, dissolved oxygen concentration is higher than 4 mg/L, wherein filtrate accounts for 1/4 ~ 1/3 of filter tank volume, and in secondary upflow type aerating biological filter, dissolved oxygen concentration is higher than 4 mg/L, and wherein filtrate accounts for 1/4 ~ 1/3 of filter tank volume;
Described anaerobic biofilter, one-level BAF, secondary BAF are equipped with filler, and described filler is cinder.
2. the integrated conduct method of rural area according to claim 1 livestock and poultry liquid dung, sanitary sewage, is characterized in that: the grid filtration that described Wastewater Pretreatment is is the grid filtration of 50 mm successively through gap after being mixed with 1:1 ~ 3 with poultry liquid dung by sanitary sewage, the balanced waste water of water collecting basin, gap are 3 mm.
3. the integrated conduct method of rural area according to claim 1 livestock and poultry liquid dung, sanitary sewage, it is characterized in that: described wetland variation wet land treating system is sent in the water outlet of secondary aeration purify, filler is provided with in described wet land treating system, filler divides three layers, is followed successively by pedosphere, cinder layer, gravel bed from top to bottom.
4. the integrated conduct method of rural area according to claim 3 livestock and poultry liquid dung, sanitary sewage, is characterized in that: described pedosphere thickness is 30cm, and cinder layer thickness is 25cm, and gravel bed thickness is 20cm.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104211262B (en) * | 2014-09-22 | 2016-03-02 | 中共桐乡市委农业和农村工作办公室 | Sewage ecological treatment system |
| CN104193115A (en) * | 2014-09-22 | 2014-12-10 | 合肥市市政设计院有限公司 | Technology for treating slaughter wastewater by adopting biological filter |
| CN105399275B (en) * | 2015-11-27 | 2018-10-23 | 中铁五局集团建筑工程有限责任公司 | A kind of sewage water treatment method |
| CN105645698B (en) * | 2016-03-31 | 2018-05-15 | 上海惠果环境工程有限公司 | High concentrated organic wastewater water cleaning systems and technological process |
| CN106045207A (en) * | 2016-07-12 | 2016-10-26 | 台州学院 | Deep treating method for pharmaceutical wastewater |
| CN108409069A (en) * | 2018-06-01 | 2018-08-17 | 河池学院 | A kind of rural domestic sewage treatment system |
| CN108751593B (en) * | 2018-06-21 | 2021-01-22 | 浙江鑫广环保科技有限公司 | Comprehensive treatment method and system for large-tonnage industrial wastewater |
| CN109183898B (en) * | 2018-09-19 | 2020-08-21 | 华北水利水电大学 | Water resource recycling system |
| CN110104877A (en) * | 2019-04-28 | 2019-08-09 | 广东美景园林建设有限公司 | A kind of artificial ecology wet land system handling cesspool sewage |
| CN109987798B (en) * | 2019-04-30 | 2021-10-26 | 生态环境部华南环境科学研究所 | Rural non-point source polluted water body comprehensive treatment device and method thereof |
| CN110713322A (en) * | 2019-11-13 | 2020-01-21 | 李洪腾 | Breeding and slaughtering wastewater treatment system and method |
| CN112408724A (en) * | 2020-12-07 | 2021-02-26 | 深圳市浩天源环保科技有限公司 | Method and system for treating wastewater of farm |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759323A (en) * | 2009-12-24 | 2010-06-30 | 江西省科学院能源研究所 | Treatment combined process for pig farm waste water with high nitrogen content |
| CN102775025A (en) * | 2012-08-13 | 2012-11-14 | 陈秋竹 | Municipal life wastewater treatment system with high efficiency and low energy consumption |
| CN103395937A (en) * | 2013-08-06 | 2013-11-20 | 环境保护部南京环境科学研究所 | Processing device and processing method applicable to high-ammonia-nitrogen agricultural wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101759323A (en) * | 2009-12-24 | 2010-06-30 | 江西省科学院能源研究所 | Treatment combined process for pig farm waste water with high nitrogen content |
| CN102775025A (en) * | 2012-08-13 | 2012-11-14 | 陈秋竹 | Municipal life wastewater treatment system with high efficiency and low energy consumption |
| CN103395937A (en) * | 2013-08-06 | 2013-11-20 | 环境保护部南京环境科学研究所 | Processing device and processing method applicable to high-ammonia-nitrogen agricultural wastewater |
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Inventor after: Liu Yaoxing Inventor after: Lei Yuxin Inventor after: Liao Zaiyi Inventor after: Chen Jianjun Inventor after: Zhou Yihong Inventor after: Zhao Chunju Inventor after: Wu Xiaoyun Inventor after: Xu Yang Inventor after: Shao Panpan Inventor before: Liu Yaoxing Inventor before: Liao Zaiyi Inventor before: Lei Yuxin Inventor before: Zhou Yihong Inventor before: Zhao Chunju Inventor before: Chen Jianjun Inventor before: Wu Xiaoyun Inventor before: Xu Yang Inventor before: Shao Panpan |
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Free format text: CORRECT: INVENTOR; FROM: LIU YAOXING LIAO ZAIYI LEI YUXIN ZHOU YIHONG ZHAO CHUNJU CHEN JIANJUN WU XIAOYUN XU YANG SHAO PANPAN TO: LIU YAOXING LEI YUXIN LIAO ZAIYI CHEN JIANJUN ZHOU YIHONG ZHAO CHUNJU WU XIAOYUN XU YANG SHAO PANPAN |
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