CN103880252B - Integrated treatment equipment of rural domestic waste - Google Patents

Integrated treatment equipment of rural domestic waste Download PDF

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Publication number
CN103880252B
CN103880252B CN201410134436.XA CN201410134436A CN103880252B CN 103880252 B CN103880252 B CN 103880252B CN 201410134436 A CN201410134436 A CN 201410134436A CN 103880252 B CN103880252 B CN 103880252B
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pool
contact
hydrolysis acidification
outlet
water
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CN103880252A (en
Inventor
曾胜学
申司浩
王侃
朱红斌
金鑫
龙纯
章秋来
吕一展
陈雁雄
蔡得华
张立奎
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BAISITE ENVIRONMENT PROTECTION ENGINEERING Co Ltd SHENZHEN CITY
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BAISITE ENVIRONMENT PROTECTION ENGINEERING Co Ltd SHENZHEN CITY
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Abstract

The invention provides integrated treatment equipment of rural domestic waste. The integrated treatment equipment includes a hydrolysis acidification pool, a contact oxidation pond, an MBR membrane bioreactor and a disinfecting tank, wherein the inlet of the hydrolysis acidification pool is used for receiving sewage, the outlet of the hydrolysis acidification pool is connected with the inlet of the contact oxidation pond, the outlet of the contact oxidation pond is connected with the inlet of the MBR membrane bioreactor, the outlet of the MBR membrane bioreactor is connected with the inlet of the disinfecting tank, and the outlet of the disinfecting tank is used as the water outlet of the equipment. The equipment for treating domestic waste is low in noise and odor pollution, low in cost, efficient and flexible and is very suitable for treating domestic waste in rural areas.

Description

Domestic sewage in rural areas integrated equipment for wastewater treatment
Technical field
The present invention relates to sewage disposal technology, particularly relate to a kind of domestic sewage in rural areas integrated equipment for wastewater treatment.
Background technology
General domestic sewage processing method is more as contact oxidation method, SBR method, oxidation ditch, cyclic activated sludge system etc. biomembrance process or activated sludge process.But the sanitary sewage general water yield in Rural areas is less, and treatment process easily causes secondary pollution routinely, and floor space is large, and cost of investment is high, operation trouble.
Summary of the invention
Main purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of noise and odor pollution is little, cost is low, use is efficient, convenient, domestic sewage in rural areas integrated equipment for wastewater treatment flexibly.
For achieving the above object, the present invention is by the following technical solutions:
A kind of domestic sewage in rural areas integrated equipment for wastewater treatment, comprise hydrolysis acidification pool, contact-oxidation pool, MBR membrane bioreactor and sterilization pool, the entrance of described hydrolysis acidification pool receives sewage, the outlet of described hydrolysis acidification pool connects the entrance of described contact-oxidation pool, the outlet of described contact-oxidation pool connects the entrance of described MBR membrane bioreactor, the outlet of described MBR membrane bioreactor connects the entrance of described sterilization pool, and the outlet of described sterilization pool is as the water outlet of described equipment.
Preferably,
Described integrated equipment for wastewater treatment also comprises the sludge recirculation system be arranged between described contact-oxidation pool and described hydrolysis acidification pool, and the mud in described contact-oxidation pool sends back in described hydrolysis acidification pool via described sludge recirculation system.
The reflux ratio of described sludge recirculation system is 1-2:1.
In described hydrolysis acidification pool, controlling hydraulic detention time is 5 hours, current lift velocity is 0.5-0.8m/h, is provided with perforated pipe water distributor and water distributing pipe arm in described hydrolysis acidification pool, 150mm-200mm at the bottom of the water outlet distance pond of perforated pipe water distributor and water distributing pipe arm.
The total height of described contact-oxidation pool is 2.5-3 rice, and the height of packing layer is 1.5 meters, and the depth of water on filler is 0.4 meter, the superelevation of pond body 0.3 meter, and filler volumetric loading is 1500gBOD5/m3d; In described contact-oxidation pool, controlling effective duration of contact is 3h, and gas-water ratio is 16:1.
Described sterilization pool is ultraviolet disinfection pond.
Advantageous Effects of the present invention:
By adopting hydrolysis acidification pool, contact-oxidation pool, MBR film, sterilization pool in the present invention, form integrated domestic sewage treatment device, foul smell is not easily excessive, sound is little, effectively avoid causing the secondary pollution such as noise, foul smell, final product is nitrogen, carbonic acid gas and water, the one-level B standard that can reach completely in urban wastewater treatment firm pollutant emission standard is interior and stable, and its cost is low, daily operation management expense is low, except basic charge as per installed capacity, does not need other expenditure, operation management is convenient, and easy-to-operate is reliable.The transport of this integration apparatus is mobile flexibly, can second stage employ, and whole system is conducive to realizing Automatic Control.In a word, the present invention is adapted to the little feature of the sanitary sewage amount in China rural area very much.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of domestic sewage in rural areas integrated equipment for wastewater treatment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.It is emphasized that following explanation is only exemplary, instead of in order to limit the scope of the invention and apply.
Consult Fig. 1, according to embodiments of the invention, domestic sewage in rural areas integrated equipment for wastewater treatment comprises hydrolysis acidification pool, contact-oxidation pool, MBR membrane bioreactor and sterilization pool, the entrance of hydrolysis acidification pool is connected to septic tank, septic tank receives the sewage from sewage discharge point, the sewage that septic tank exports delivers to hydrolysis acidification pool through mechanical filter screen, the outlet of hydrolysis acidification pool connects the entrance of contact-oxidation pool, the outlet of contact-oxidation pool connects the entrance of MBR membrane bioreactor, the outlet of MBR membrane bioreactor connects the entrance of sterilization pool, the outlet of sterilization pool is as the water outlet of equipment.Wherein, from septic tank out sanitary sewage first after mechanical strainer filtering, pump into hydrolysis acidification pool with pump and to be hydrolyzed acidification, then flow to contact-oxidation pool and carry out aerobic treatment, water after having processed flows to MBR membrane bioreactor again and processes, and finally enters sterilization pool disinfection.
Sanitary sewage effectively can destroy the larger molecular organics in waste water, obviously improve the biochemical property of water after being collected into septic tank by each sewage point.Entering before hydrolysis acidification pool carries out biochemical treatment, mechanical filter screen can tackle larger suspended substance and foreign material.
By biological bacteria effect in hydrolysis acidification pool, the larger molecular organics in sewage obtains clearing up to a certain extent, becomes the micromolecular organism that acid, alcohol etc. are conducive to the aerobic treatment of back segment.Acidication process is a kind of technique between aerobic and anaerobic treatment method, can reduce processing cost and improve processing efficiency.Hydrolysis acidification pool is different from the hydrolysis acid-producing bacteria speed of growth according to methanogen, anaerobic treatment is controlled the first and second stages in reaction times shorter anaerobic treatment, namely be dissolved organic matter by insoluble hydrolysis of organic matter under a large amount of hydrolytic bacteria, the effect of acidifying bacterium, the macromolecular substance of difficult for biological degradation is converted into the process of the small-molecule substance of readily biodegradable, thus improve the biodegradability of waste water, for subsequent disposal establishes good basis.
Preferably, in hydrolysis acidification pool, adopt perforated pipe water distributor, water distributing pipe arm, 150mm-200mm at the bottom of water outlet distance pond, controlling hydraulic detention time is 5 hours, controls current lift velocity 0.5-0.8m/h.Above-mentioned design can obtain good acidication effect while obtaining higher processing speed.
Hydrolysis acidification pool water outlet can be flow automatically and be entered contact-oxidation pool.Bio-contact oxidation is waste water aerobic process, the further oxygenolysis of micromolecular organism that acidication produces by being attached to filling surface microorganism by it, thus organics removal, biological contact oxidation process is also fine on the tolerance of the impact of the impact load in system simultaneously, and the water quality processing water outlet like this will keep stable.
In contact-oxidation pool, adopt fixed type biological filler as microorganism carrier, growth has microorganism carrier to be submerged in water, and aerating system is the microorganism oxygen supply in reactor.Because Microorganism incubation in contact oxidation method is grown on biologic packing material, overcome the shortcoming that suspended active mud is easy to run off, very high biomass can be kept in the reactor.It is high that catalytic oxidation has volumetric loading, and the residence time is short, and organic matter removal is effective, and operational management is simple, and the little grade of floor space a little.Preferably, in contact-oxidation pool, filler volumetric loading presses 1500gBOD5/m3d, effective duration of contact is 3h, gas-water ratio is 16:1, bed stuffing height 1.5 meters, filler headwater depth 0.4 meter, the superelevation (pond body exceeds the height of the highest permission liquid level) 0.3 meter of pond body, unit total height controls at 2.5-3 rice.Above-mentioned design can obtain good catalytic oxidation effect, and can ensure higher art breading speed.
Preferably, contact-oxidation pool connects hydrolysis acidification pool by sludge recirculation system, and contact-oxidation pool water outlet part sludge reflux, to hydrolysis acidification pool, to ensure hydrolysis acidification pool activated sludge concentration, and improves processing efficiency.Preferred reflux ratio is 1-2:1.
The water outlet of biological contact oxidation pond enters MBR membrane bioreactor, high reactivity sludge concentration is kept in MBR membrane bioreactor, biological treatment organic loading can be improved, thus reduce sewage treatment facility floor space, and by keeping low sludge loading to reduce surplus sludge volume.MBR membrane bioreactor mainly utilizes active sludge in the membrane separation plant entrapping tank be immersed in aerobe pond and larger molecular organics.Active sludge (MLSS) concentration in MBR membrane bioreactor system can be promoted to 8000 ~ 10,000mg/L, even higher; Sludge age (SRT) can extend to more than 30 days.MBR membrane bioreactor is because of its effective crown_interception, and can retain generation cycle longer microorganism, can realize deep purification of waste water, Simultaneous Nitrification bacterium can fully breed in system, and its nitrification effect is obvious, provides possibility to deep phosphorous removal denitrogenation.
Water outlet flows into sterilization pool, qualified discharge after sterilization, also can reuse as flushed the toilet, greening etc.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.

Claims (2)

1. a domestic sewage in rural areas integrated equipment for wastewater treatment, it is characterized in that, comprise hydrolysis acidification pool, contact-oxidation pool, MBR membrane bioreactor and sterilization pool, the entrance of described hydrolysis acidification pool receives sewage, the outlet of described hydrolysis acidification pool connects the entrance of described contact-oxidation pool, sludge recirculation system is provided with between described hydrolysis acidification pool and described contact-oxidation pool, mud in described contact-oxidation pool sends back in described hydrolysis acidification pool via described sludge recirculation system, reflux ratio is 2:1, the outlet of described contact-oxidation pool connects the entrance of described MBR membrane bioreactor, the outlet of described MBR membrane bioreactor connects the entrance of described sterilization pool, the outlet of described sterilization pool is as the water outlet of described equipment, the total height of described contact-oxidation pool is 3 meters, and the height of packing layer is 1.5 meters, and the depth of water on filler is 0.4 meter, the superelevation of pond body 0.3 meter, and filler volumetric loading is 1500gBOD 5/ m 3d, in described contact-oxidation pool, controlling effective duration of contact is 3h, gas-water ratio is 16:1, in described hydrolysis acidification pool, controlling hydraulic detention time is 5 hours, current lift velocity is 0.5-0.8m/h, is provided with perforated pipe water distributor and water distributing pipe arm in described hydrolysis acidification pool, 150mm-200mm at the bottom of the water outlet distance pond of perforated pipe water distributor and water distributing pipe arm.
2. domestic sewage in rural areas integrated equipment for wastewater treatment as claimed in claim 1, it is characterized in that, described sterilization pool is ultraviolet disinfection pond.
CN201410134436.XA 2014-04-03 2014-04-03 Integrated treatment equipment of rural domestic waste Active CN103880252B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104944683B (en) * 2015-05-26 2017-08-25 浦华环保有限公司 The processing system and processing method of a kind of slaughtering wastewater
CN105601037A (en) * 2015-12-29 2016-05-25 太仓弘杉环保科技有限公司 Underground wastewater treatment method and treatment device thereof
CN110950501A (en) * 2019-12-23 2020-04-03 山东聚祥环境工程有限公司 BOM production process

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201473421U (en) * 2009-05-05 2010-05-19 李波 Buried non-sludge integrated sewage treatment device
CN101987771A (en) * 2010-11-19 2011-03-23 哈尔滨工程大学 Advanced treating device and treating method of salty domestic sewage in ships
CN102603115A (en) * 2012-03-05 2012-07-25 广东东日环保有限公司 Integrated device for processing domestic sewage in small towns
CN103288301A (en) * 2013-06-26 2013-09-11 中国水电顾问集团中南勘测设计研究院 A system and a method for the treatment of hospital sewage through the combination of biological contact oxidation and MBR membrane
CN203392984U (en) * 2013-08-13 2014-01-15 河北龙淼环保工程有限公司 Bio-contact oxidation integrated sewage treatment system
CN203700117U (en) * 2014-01-24 2014-07-09 天津亿利科能源科技发展股份有限公司 Movable integrated regenerating treating device for domestic sewage
CN203794748U (en) * 2014-04-03 2014-08-27 深圳市百斯特环保工程有限公司 Integrated rural domestic sewage treatment device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201473421U (en) * 2009-05-05 2010-05-19 李波 Buried non-sludge integrated sewage treatment device
CN101987771A (en) * 2010-11-19 2011-03-23 哈尔滨工程大学 Advanced treating device and treating method of salty domestic sewage in ships
CN102603115A (en) * 2012-03-05 2012-07-25 广东东日环保有限公司 Integrated device for processing domestic sewage in small towns
CN103288301A (en) * 2013-06-26 2013-09-11 中国水电顾问集团中南勘测设计研究院 A system and a method for the treatment of hospital sewage through the combination of biological contact oxidation and MBR membrane
CN203392984U (en) * 2013-08-13 2014-01-15 河北龙淼环保工程有限公司 Bio-contact oxidation integrated sewage treatment system
CN203700117U (en) * 2014-01-24 2014-07-09 天津亿利科能源科技发展股份有限公司 Movable integrated regenerating treating device for domestic sewage
CN203794748U (en) * 2014-04-03 2014-08-27 深圳市百斯特环保工程有限公司 Integrated rural domestic sewage treatment device

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