CN105036328A - Village decentralized wastewater treatment method - Google Patents
Village decentralized wastewater treatment method Download PDFInfo
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- CN105036328A CN105036328A CN201510183884.3A CN201510183884A CN105036328A CN 105036328 A CN105036328 A CN 105036328A CN 201510183884 A CN201510183884 A CN 201510183884A CN 105036328 A CN105036328 A CN 105036328A
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Abstract
The invention belongs to the technical field of environment protection and particularly relates to a treatment method aiming to village decentralized wastewater. In the invention, a wastewater treatment facility with village as unit is established, wherein the facility is composed of a regulation tank and an integrated anoxic membrane-biological reactor. The facility is used in a manner of continuous water feeding, periodical aeration and periodical water discharge. The regulation tank is communicated with the integrated anoxic membrane-biological reactor through a submerged pump, wherein aeration is carried out in a treatment zone in the reactor so that the reactor is in a coexistence status of micro-aerobic, anoxic and anaerobic. Various bacteria colonies exist in the reactor and various reactions are carried out synchronously, so that carbon, nitrogen, phosphorus and such pollutants in the wastewater are removed synchronously. During operation processes, zero emission of organic excess sludge is achieved, and discharged water after treatment from the integrated anoxic membrane-biological reactor flows into a clean water zone through a water production pump.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to a kind for the treatment of process for rural area decentralized type sewage.
Background technology
The movable sewage produced such as country sewage refers to that urban residents live, production, comprise the movable sewage produced such as flushing the toilet, cooking, laundry, bathing, plantation and family livestock and poultry are raised scattered.Along with the development of rural economy, Rural areas standard of living improves constantly, and China's country sewage is current unprocessedly directly enters river course mostly, and the pollution of area source problem caused is also day by day serious, is cause one of lake eutrophication major reason.
Rural sewage treatment situation is faced with severe predicament, two aspects of having traced it to its cause: on the one hand, and construction drops into and follow-up management maintenance input needs substantial contribution, especially long-term managed operation cost; On the other hand, actual processing effect is unsatisfactory, and inefficient operation is failure phenomenon ubiquity even, causes the serious wasting of resources.55.6 ten thousand, the existing administrative village of China, people in the countryside are less, widely distributed and dispersion, major part does not have sewage discharge pipe network." improvement of country sewage not only will see that more will see underground, be the construction of pipe network to the matter of utmost importance of countryside sewage treating on the ground." data show, in January, 2014-May, country sewage pipeline network construction project about 45, accumulatively laid pipe network 500 kilometers, gross investment about 1.1 hundred million yuan, accounted for 34% of period sewage disposal gross investment.Open source information shows, in Jinze Town in Qingpu District in Shanghai, a rural domestic sewage treatment facility less than 400 families, the process water yield is about 200 tons every day, although technical matters belongs to low cost, the managed operation cost of a year still reaches about 15.4 ten thousand yuan, and wherein about 50% is the expenditure of routine maintenance.
According to measuring and calculating, annual sanitary sewage quantity discharged 11,000,000,000 tons, but processing rate is very low, wastewater treatment rate 8%, domestic sewage in rural areas concentration is low, substantially not containing heavy metal and hazardous and noxious substances in water, containing a certain amount of nitrogen, phosphorus, variation water quality is large, and biodegradability is strong, the water quality of Different periods is different again, is not suitable for adopting centralized processing.Sewage treatment facility has been built by centralized renovation in some villages and small towns, but just occurred that facility is idle damaged soon, foreign material huddle leave about, garbage leachate still Problems existing.
Country sewage has water quality and quantity instability, is difficult to the features such as unification is collected, multi-point and wide-ranging, management difficulty is large, and town sewage pipe network can not be included in, take on the spot or the decentralized village Sewage Treatment Facilities processing and build nearby, at present, the biomembrance process of artificial swamp, natural aeration, bio-oxidation pond become mainstream technology.Though Artificial Wetland Techniques process runs easy, take up an area large, anti impulsion load ability is weak, treatment effect is subject to season and the impact of temperature; Biomembrance process investment is higher, and processed in units efficiency is lower; Bio-oxidation pond exists that hydraulic detention time is long, the treatment effect impact of weather on stabilization pond is comparatively large, easily produce stink and grow mosquitos and flies, mud not easily discharges and processing and utilizing, easily causes secondary pollution.In addition, China's rural area specific resistance to filtration facility wretched insufficiency, has formed the potential safety hazard of ecotope in a large number without the mud of harmless treatment.
So, research and develop a kind of be applicable to rural decentralized wastewater practical situation and operational management convenience, non-secondary pollution, not climate seasonal effect, sewage disposal technology that processing efficiency high less on surrounding enviroment impact, be the vital task responding new countryside construction policy at present.
Summary of the invention
For the deficiency that existing rural decentralized wastewater tupe exists, the object of the present invention is to provide a kind of new treatment method for rural sewage.
To achieve these goals, the present invention adopts following technical scheme:
A kind of rural area decentralized sewage treatment method, build the sewage treatment facility in units of village, described facility is by equalizing tank, integration facultative aerobic membrane bioreactor is formed, adopt continuum micromeehanics, periodically aeration, periodical discharge, described equalizing tank is communicated with integrated facultative aerobic membrane bioreactor by submersible pump, in reactor, aeration is carried out in treatment zone, reactor assembly is made to be in micro-oxygen, anoxic, anaerobism also deposits state, all kinds of flora mutual survival in reactor, various reaction is synchronously carried out, C in synchronous removal sewage, N, the pollution substances such as P, organic residual sludge zero discharge in operational process, water outlet after the process of integration facultative aerobic membrane bioreactor enters clear water zone under the effect of product water pump.
Described integrated facultative aerobic membrane bioreactor, not anthropogenic discharge's organic residual mud in reactive system, the thalline of decline i.e. mud but also be decomposed as the nutrition source of other bacteriums, maintains the running balance of reactive system mud.
The integrated facultative aerobic membrane bioreactor of rural decentralized wastewater treatment process main body of the present invention, carries out aeration aerating by gas blower to treatment zone in reactor.Country sewage in equalizing tank enters reactor by submersible pump, in periodicity aeration process, aeration is carried out to treatment zone in reactor, reactor assembly is made to be in micro-oxygen, anoxic, anaerobism also deposits state, and the characteristic microorganism system of turning out based on facultative composite bacteria, all kinds of flora mutual survival in reactor, various reaction is synchronously carried out, C in synchronous removal sewage, N, the pollution substances such as P, carbonic acid gas is decomposed under facultative composite bacteria effect, nitrogen, the material such as phosphuret-(t)ed hydrogen and water, water outlet after process enters clear water zone under the effect of product water pump, can directly discharge also reproducible utilization.
While in integrated FMBR facultative aerobic membrane bioreactor of the present invention, the pollutent in water is degraded to the inorganic substance such as carbonic acid gas and water by the facultative composite bacteria of high density, not anthropogenic discharge's organic residual mud in reactive system, the thalline (namely mud) of decline but also be decomposed as the nutrition source of other bacteriums, the running balance of maintenance reactive system mud.
Treatment method for rural sewage of the present invention adopts fully automatic operation mode, and by the sequence control system in housing, convenient management, without the need to staff on duty.
Instant invention overcomes easy climate impact, fluctuation of service, the difficult management of prior art, cause the deficiencies such as secondary pollution, have the following advantages:
(1) floor space is little, less investment.Simple process of the present invention, equipment integration degree is high, equipment ton water floor space 0.1 ~ 0.2m
2, take up an area the 10%-25% being only traditional technology, economize the land resource, be convenient to addressing.
(2) without the need to staff on duty.Present invention process Automatic Control runs, without the need to being equipped with professional and technical personnel.
(3) processing efficiency is high, effect stability.Effluent quality after process of the present invention is better than " urban wastewater treatment firm pollutant emission standard " GB/T18918-2002 first discharge standard, and Absorbable organic halogens reaches " urban sewage reutilization, urban reclaimed water water quality " GB/T18920-2002 standard.
(4) little on surrounding enviroment impact.Present invention process produces without organic residual mud, and it is little that equipment runs noise, has no significant effect surrounding enviroment.
(5) low-carbon energy-saving.The FMBR facultative aerobic membrane bioreactor that the present invention adopts, reduces oxygen supply, save aeration consumption, more conventional traditional aerobic process energy-conservation 60%.In addition, without the discharge of residue organic sludge, the carbon emission that sludge disposal causes is decreased, so the overall carbon emission of technique compares traditional technology reduce about 2/3.
Accompanying drawing explanation
Fig. 1 is present invention process schema
Fig. 2 integrated facultative aerobic membrane bioreactor device schematic diagram
In Fig. 2 I---inspection port; II---battery limits; III---clear water zone; IV---treatment zone
1---water producing pipe road; 2---produce water pump; 3---gas blower; 4---housing;
5---ventage; 6---aerating pipelines; 7---membrane module.
Embodiment
Further illustrate the present invention below in conjunction with accompanying drawing and specific embodiment how to realize:
Embodiment 1
Water quality treatment parameter: handling object is country sewage, is mainly resident living water, and quantity discharged is about 50m
3/ d, total quantity control on emission is COD=250mg/L, TN=25mg/L, TP=3mg/L.
Treating processes: country sewage enters equalizing tank after collecting, the regulating water quality water yield, integrated FMBR facultative aerobic membrane bioreactor is promoted to by submersible pump, housing 4 controls whole reactive system, aeration aerating is carried out by gas blower 3 pairs for the treatment of zones IV in reactor, reactor assembly is made to be in micro-oxygen, anoxic, anaerobism also deposits state, and the characteristic microorganism system of turning out based on facultative composite bacteria, all kinds of flora mutual survival, various reaction is synchronously carried out, C in synchronous removal sewage, N, the pollution substances such as P, carbonic acid gas is decomposed under facultative composite bacteria effect, nitrogen, the material such as phosphuret-(t)ed hydrogen and water, water outlet after process is discharged treatment zone by water producing pipe road 1 and is entered IV clear water zone under product water pump 2 acts on, can directly discharge also reproducible utilization.
Treatment effect: after the inventive method process, every average index of water outlet is CODcr=18.2mg/L; TN=5.09mg/L; TP=0.3mg/L, water outlet requires to reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard, the zero release of operational process organic sludge.
Embodiment 2
Water quality treatment parameter: handling object is country sewage, be mainly the composite wastes such as resident living water, breeding wastewater and food processing wastewater, quantity discharged is about 50m
3/ d, total quantity control on emission is COD=450mg/L, TN=50mg/L, TP=4.5mg/L.
Treating processes: country sewage enters equalizing tank after collecting, the regulating water quality water yield, integrated FMBR facultative aerobic membrane bioreactor is promoted to by submersible pump, housing 4 controls whole reactive system, aeration aerating is carried out by gas blower 3 pairs for the treatment of zones IV in reactor, reactor assembly is made to be in micro-oxygen, anoxic, anaerobism also deposits state, and the characteristic microorganism system of turning out based on facultative composite bacteria, all kinds of flora mutual survival in reactor, various reaction is synchronously carried out, C in synchronous removal sewage, N, the pollution substances such as P, carbonic acid gas is decomposed under facultative composite bacteria effect, nitrogen, phosphuret-(t)ed hydrogen, the materials such as water, water outlet after process is discharged treatment zone by water producing pipe road 1 and is entered IV clear water zone under product water pump 2 acts on, can directly discharge also reproducible utilization.
Treatment effect: after the inventive method process, every average index of water outlet is CODcr=24.55mg/L; TN=12.18mg/L; TP=0.23mg/L, water outlet requires to reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard, the zero release of operational process organic sludge.
Claims (2)
1. a rural area decentralized sewage treatment method, build the sewage treatment facility in units of village, it is characterized in that: described facility is by equalizing tank, integration facultative aerobic membrane bioreactor is formed, adopt continuum micromeehanics, periodically aeration, periodical discharge, described equalizing tank is communicated with integrated facultative aerobic membrane bioreactor by submersible pump, in reactor, aeration is carried out in treatment zone, reactor assembly is made to be in micro-oxygen, anoxic, anaerobism also deposits state, all kinds of flora mutual survival in reactor, various reaction is synchronously carried out, C in synchronous removal sewage, N, the pollution substances such as P, organic residual sludge zero discharge in operational process, water outlet after the process of integration facultative aerobic membrane bioreactor enters clear water zone under the effect of product water pump.
2. rural area according to claim 1 decentralized sewage treatment method, it is characterized in that: not anthropogenic discharge's organic residual mud in the reactive system of integrated facultative aerobic membrane bioreactor, the thalline i.e. mud of decline but also be decomposed as the nutrition source of other bacteriums, maintains the running balance of reactive system mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510183884.3A CN105036328A (en) | 2015-04-20 | 2015-04-20 | Village decentralized wastewater treatment method |
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| CN201510183884.3A CN105036328A (en) | 2015-04-20 | 2015-04-20 | Village decentralized wastewater treatment method |
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| CN105036328A true CN105036328A (en) | 2015-11-11 |
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| CN201510183884.3A Pending CN105036328A (en) | 2015-04-20 | 2015-04-20 | Village decentralized wastewater treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373204A (en) * | 2018-03-23 | 2018-08-07 | 南昌大学 | A kind of bioreactor-plant life delay tank combined system |
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| CN101885538A (en) * | 2009-05-15 | 2010-11-17 | 江西金达莱环保研发中心有限公司 | Membrane bioreactor process for removing phosphorus without mud discharge |
| CN202246328U (en) * | 2011-07-25 | 2012-05-30 | 天津天一爱拓科技有限公司 | Integrated buried equipment for sewage treatment |
| CN102730914A (en) * | 2012-07-12 | 2012-10-17 | 江西金达莱环保研发中心有限公司 | Method for processing livestock breeding wastewater by using anoxic membrane bioreactor |
| CN103539251A (en) * | 2013-10-22 | 2014-01-29 | 江西金达莱环保股份有限公司 | Method for synchronously degrading carbon, nitrogen and phosphorus in wastewater without discharging sludge |
| CN103864211A (en) * | 2014-02-26 | 2014-06-18 | 上海大学 | Method for processing food processing wastewater by adopting facultative membrane bioreactor and facultative membrane bioreactor |
-
2015
- 2015-04-20 CN CN201510183884.3A patent/CN105036328A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885538A (en) * | 2009-05-15 | 2010-11-17 | 江西金达莱环保研发中心有限公司 | Membrane bioreactor process for removing phosphorus without mud discharge |
| CN202246328U (en) * | 2011-07-25 | 2012-05-30 | 天津天一爱拓科技有限公司 | Integrated buried equipment for sewage treatment |
| CN102730914A (en) * | 2012-07-12 | 2012-10-17 | 江西金达莱环保研发中心有限公司 | Method for processing livestock breeding wastewater by using anoxic membrane bioreactor |
| CN103539251A (en) * | 2013-10-22 | 2014-01-29 | 江西金达莱环保股份有限公司 | Method for synchronously degrading carbon, nitrogen and phosphorus in wastewater without discharging sludge |
| CN103864211A (en) * | 2014-02-26 | 2014-06-18 | 上海大学 | Method for processing food processing wastewater by adopting facultative membrane bioreactor and facultative membrane bioreactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373204A (en) * | 2018-03-23 | 2018-08-07 | 南昌大学 | A kind of bioreactor-plant life delay tank combined system |
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Application publication date: 20151111 |