CN102976555A - Integrated air floatation-membrane bioreactor - Google Patents
Integrated air floatation-membrane bioreactor Download PDFInfo
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- CN102976555A CN102976555A CN2012105057011A CN201210505701A CN102976555A CN 102976555 A CN102976555 A CN 102976555A CN 2012105057011 A CN2012105057011 A CN 2012105057011A CN 201210505701 A CN201210505701 A CN 201210505701A CN 102976555 A CN102976555 A CN 102976555A
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Abstract
The invention relates to a water treatment device and particularly relates to an integrated air floatation-membrane bioreactor, belonging to the technical field of water treatment. The reactor comprises a shell body, wherein a backflow pressurizing gas-dissolving device is arranged on an outer part of the shell body; the adopted raw water is final effluent water of the reactor, namely a partial backflow pressurizing gas-dissolving way is adopted; the shell body is divided into two single tanks connected through a pipeline; the upper part of the left single tank is an air floatation chamber, and the lower part of the left single tank is a biological filtering layer; and a membrane component is put in the right single tank. Through the reactor, the air floatation technology, the biological membrane technology and the membrane separation technology are organically combined, so that the treatment efficiency is high and the quality of the effluent water is good; the algae in the water can be effectively removed by the air floatation technology; the concentration of the organic matters can be effectively reduced by the biological membrane technology; and the water treated by the membrane separation technology has the advantages of low turbidity and good water quality. The reactor is suitable for treating drinking water which adopts surface water with high content of algae, low turbidity and micro-pollution as the raw water; and good effects can be obtained even under a low-temperature condition.
Description
Technical field
The present invention relates to a kind of water treating equipment, be specifically related to a kind of integration air-float-membrane bioreactor, be particularly useful for the drinking water treatment take high algae, low turbid, micro-polluted surface water as former water, belong to water-treatment technology field.
Background technology
At present, the Drinking Water in China earth surface water source generally suffers little pollution, and algae and organic content are generally higher and conventional treatment process is helpless to this in the water.For this situation, usually the countermeasure that adopts is on the basis of common process former water to be carried out pre-treatment or advanced treatment, technology such as preoxidation, Biological Pretreatment and gac, ozone-active carbon, this certainly will cause the prolongation of technical process, operates, manages also more complicated.Therefore, processing efficiency is high, effluent quality is good, technical process is short, simple to operate, convenient management, to be applicable to high algae, to hang down drinking water treatment technology turbid, the micro-polluted surface water treatment be the study hotspot of the art.In addition, for some remote Rural areass, be applicable to high algae, low Unitary drinking water treating apparatus turbid, the micro-polluted surface water treatment has more and has broad application prospects.
Summary of the invention
The objective of the invention is the deficiency for the prior art existence, a kind of integration air-float-membrane bioreactor is provided.This reactor comprises a housing, and hull outside is equipped with backflow pressure air-dissolving device, and the former water that adopts is the final outflow water of reactor, namely adopts the molten gas mode of partial reflux pressurization; Described housing is divided into two single ponds, is connected by pipeline between two single ponds; The top in single pond, left side is that gas-floating chamber, bottom are biological filtering layer; Membrane module is placed in single pond in the right side.This reactor organically combines air flotation technology, technology of biological membrane and membrane separation technique, processing efficiency is high, effluent quality is good, wherein air flotation technology can effectively be removed the algae in the water, technology of biological membrane can effectively reduce organic concentration, water turbidity after membrane separation technique is processed is low, water quality is good, is applicable to the drinking water treatment take high algae, low turbid, micro-polluted surface water as former water, even if also can obtain good result under cold condition.
The objective of the invention is to be achieved through the following technical solutions: a kind of integration air-float-membrane bioreactor, this reactor comprises a housing, hull outside is equipped with backflow pressure air-dissolving device; It is characterized in that: described housing is divided into left and right two single ponds, is connected by pipeline between two single ponds; The top in single pond, described left side is gas-floating chamber, and described gas-floating chamber comprises flocculation zone, gentle moisture abscission zone, zone of action; Dan Chi bottom, left side is biological filtering layer; Described right side is equipped with membrane module in single pond.
Above the described gas-floating chamber slag scraper is arranged, scum silica frost is discharged by scum pipe, and scum pipe can double as the water shoot of backwashing wastewater simultaneously.
Described backflow pressure air-dissolving device comprises dissolved air release, and the former water that backflow pressure air-dissolving device adopts is the final outflow water of reactor, i.e. the water outlet of film rising pipe; Described raw water tubes is connected with chemical feed pipe.
Described membrane module is micro-filtration membrane module or hyperfiltration membrane assembly, and the pattern of film is hollow-fibre membrane or flat sheet membrane, and the film water-out manners is the suction type water outlet, is equipped with aeration head, air-supply duct at the bottom of pond below the membrane module.
The biologic packing material that adopts in the described biological filtering layer is biological activated carbon or biological ceramic particle, and biologic packing material supports by filter plate.
Be divided into two pipelines after connecing threeway on the rising pipe of bottom, single pond, described left side, one is communicating pipe connection right side Dan Chi, and another is backwash tube; Also has the emptying pipe at the bottom of the described pond.
Principle of work of the present invention:
A. air supporting effect
Pending former water is behind dosing coagulant, and the water-borne glue body takes off surely, flocculates, and flco contacts with microbubble in the dissolved air water and mutually adheres to, and adheres to the surface that floats to water on the microbubble behind the flco, strikes off through slag scraper.The flco proportion that algae-containing water forms and water approach, and are difficult to sink, but very easily float after adhering to bubble, therefore adopt pneumatically supported mode can effectively remove algae in the water.
B. biofiltration effect
Current after air supporting is processed are through biological filtering layer, and under the metabolism of microorganism, organic concentration can reduce greatly in the water.In addition, under filteration, biological filtering layer can be held back the larger suspended substance of particle diameter, reduces the film pollution level in the subsequent technique.
C. membrane sepn effect
Under the sieving effect, but the equal tunicle of the material that the particle diameter ratio membrane pore size is large in the water is held back.Therefore, after the water after the biological filtering layer processing was flowed through membrane module again, effluent quality can further improve.
Advantage of the present invention is: this reactor process flow process is short, compact construction, and floor space is little, has finished flocculation, air supporting, biofiltration and membrane sepn in a reactor; Processing efficiency is high, effluent quality is good, air flotation technology can be removed the algae in the water effectively, technology of biological membrane can effectively reduce organic concentration, water turbidity after membrane separation technique is processed is low, water quality is good, be applicable to the drinking water treatment take high algae, low turbid, micro-polluted surface water as former water, even if under cold condition, also can obtain good result.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
Among Fig. 1: 1, slag scraper, 2, the gas-water separation district, 3, scum pipe, 4, the zone of action, 5, dissolved air release, 6, backflow pressure air-dissolving device, 7, raw water tubes, 8. flocculation zone, 9, chemical feed pipe, 10, biological filtering layer, 11, filter plate, 12, backwash tube, 13, communicating pipe, 14, film rising pipe, 15, housing, 16, membrane module, 17, aeration head, 18, air-supply duct, 19, the emptying pipe.
Embodiment
As shown in the figure: the embodiment of the integrated air supporting-membrane bioreactor of the present invention, housing 15 is made by steel plate, and planeform is rectangle, and whole housing is divided into two single ponds, the top in single pond, left side is that gas-floating chamber, bottom are biological filtering layer 10, and membrane module 16 is placed in single pond in the right side.Gas-floating chamber comprises flocculation zone 8, zone of action 4, gas-water separation district 2, and the pressure air-dissolving water that is provided by backflow pressure air-dissolving device 6 enters in the pond through dissolved air release 5.The bottom, pond arranges aeration head 17 below membrane module 16, and gas is provided by air-supply duct 18, is mainly used in the control that film pollutes, and also can improve the dissolved oxygen concentration in the water simultaneously, for microorganism provides oxygen source.Emptying pipe 19 is installed at the bottom of the pond.
Raw water tubes 7 connects raw water pump, and pending former water enters flocculating chamber 8 through the raw water pump pressurization by raw water tubes 7.
Chemical feed pipe 9 connects volume pumps, and certain density coagulating agent enters raw water tubes 7 by chemical feed pipe 9 after the volume pump pressurization, coagulating agent with enter flocculating chamber 8 after former water mixes.
Backflow pressure air-dissolving device 6 used former water are the final outflow water of reactor, i.e. the water outlet of film rising pipe 14.
The scum silica frost that slag scraper 1 strikes off is discharged by scum pipe 3, and scum pipe 3 can double as the water shoot of backwashing wastewater simultaneously.
Biologic packing material in the biological filtering layer 10 is biological activated carbon or biological ceramic particle, and biologic packing material is supported by filter plate 11.On the backwash tube 12 under meter is installed.
Film rising pipe 14 is connected with vacuum primingpump, installs on the water absorption tube of vacuum primingpump on vacuum meter, the pressure pipe under meter is installed.
The gas of air-supply duct 18 is provided by air compressor machine, on the air-supply duct 18 under meter is installed.
Bottom, single pond, left side rising pipe is divided into two pipelines by threeway: one is communicating pipe 13, two single ponds about being used for connecting; Another is backwash tube 12, and being used for provides backwashing water, and backwashing water can adopt the final outflow water of reactor, i.e. the water outlet of film rising pipe 14.
This reactor configurations automatic control system can be controlled normal water inlet, water outlet, be scraped slag, back flushing, aeration etc.
Working process: from the pending former water of raw water tubes 7, behind chemical feed pipe 9 dosing coagulants, enter flocculation zone 8, the flco that elimination of colloid stability forms by flocculation fully contacts and mutually adhesion with microbubble from backflow pressure air-dissolving device 6 in zone of action 4, then in gas-water separation district 2, realize gas, moisture from, scum silica frost is struck off by slag scraper 1 and is discharged by scum pipe 3.Water after air supporting the is processed biological filtering layer 10 of flowing through downwards, under the metabolism of microorganism, organic concentration reduces in the water.In addition, under filteration, concentration of suspension also can reduce in the water.Water enters right side Dan Chi through communicating pipe 13 after the filter, the membrane module 16 of under the suction function of vacuum primingpump, flowing through, and through film rising pipe 14 final outflow water.The air that air-supply duct 18 provides enters water body through aeration head 17, and the bubble of generation is mainly used in controlling diaphragm and pollutes, and also provides oxygen source for microorganism in addition.When having held back a large amount of pollutents in the biological filtering layer and cause the filtering layer strainability to descend, can close the valve on communicating pipe 13, open simultaneously the valve on the backwash tube 12, carry out back flushing, flushing waste water is discharged by scum pipe 3.
Integration air-float-membrane bioreactor of the present invention can be used for the purifying treatment of tap water, is particularly useful for processing take high algae, low turbid, micro-polluted surface water as the drink water purifying of former water.
Above-mentioned explanation is not to be limitation of the present invention, and the present invention is not limited to above-mentioned giving an example, those skilled in the art, and in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement all should belong to protection scope of the present invention.
Claims (6)
1. integration air-float-membrane bioreactor, this reactor comprises a housing (15), hull outside is equipped with backflow pressure air-dissolving device (6); It is characterized in that: described housing is divided into left and right two single ponds, is connected by pipeline between two single ponds; The top in single pond, described left side is gas-floating chamber, and described gas-floating chamber comprises flocculation zone (8), gentle moisture abscission zone, zone of action (4) (2); Dan Chi bottom, left side is biological filtering layer (10); Described right side is equipped with membrane module (16) in single pond.
2. integration air-float-membrane bioreactor according to claim 1 is characterized in that: slag scraper (1) is arranged above the described gas-floating chamber, and scum silica frost is discharged by scum pipe (3), and scum pipe can double as the water shoot of backwashing wastewater simultaneously.
3. integration air-float-membrane bioreactor according to claim 1, it is characterized in that: described backflow pressure air-dissolving device comprises molten gas release room (5), the former water that backflow pressure air-dissolving device adopts is the final outflow water of reactor, i.e. the water outlet of film rising pipe (14); Described raw water tubes (7) is connected with chemical feed pipe (9).
4. integration air-float-membrane bioreactor according to claim 1, it is characterized in that: described membrane module is micro-filtration membrane module or hyperfiltration membrane assembly, the pattern of film is hollow-fibre membrane or flat sheet membrane, the film water-out manners is the suction type water outlet, at the bottom of pond below the membrane module, be equipped with aeration head (17), air-supply duct (18).
5. integration air-float-membrane bioreactor according to claim 1, it is characterized in that: the biologic packing material that adopts in the described biological filtering layer is biological activated carbon or biological ceramic particle, biologic packing material supports by filter plate (11).
6. integration air-float-membrane bioreactor according to claim 1 is characterized in that: be divided into two pipelines after connecing threeway on the rising pipe of bottom, single pond, described left side, one be communicating pipe (13) connection right side Dan Chi, and another is backwash tube (12); Also has emptying pipe (19) at the bottom of the described pond.
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| CN2012105057011A CN102976555A (en) | 2012-11-30 | 2012-11-30 | Integrated air floatation-membrane bioreactor |
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| CN2012105057011A CN102976555A (en) | 2012-11-30 | 2012-11-30 | Integrated air floatation-membrane bioreactor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708645A (en) * | 2013-12-19 | 2014-04-09 | 武汉尚远环保股份有限公司 | Oil field wastewater treatment equipment |
| CN105330068A (en) * | 2015-11-30 | 2016-02-17 | 无锡工源机械有限公司 | Air flotation and filtering integrated device |
| CN105347567A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Sewage treatment device |
| CN105347563A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Air floating and filtering integrated device |
| CN105347569A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Air-flotation, filtering and membrane-filtering treatment device |
| CN113233707A (en) * | 2021-05-24 | 2021-08-10 | 河南中烟工业有限责任公司 | Air floatation, MBR (membrane bioreactor) and multi-medium filtration integrated smoke plant sewage treatment process equipment |
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| CN1332124A (en) * | 2001-08-11 | 2002-01-23 | 杭州浙大华滤膜工程有限公司 | High-turbidity water treater with integrated flocculation, air floating and membrane separation functions |
| CN101708933A (en) * | 2009-12-02 | 2010-05-19 | 青岛赛尔环境保护有限公司 | Water treatment device |
| CN102674585A (en) * | 2011-03-14 | 2012-09-19 | 上海市政工程设计研究总院（集团）有限公司 | Combined enhanced treatment process for low-turbidity high-alga raw water |
| CN202924871U (en) * | 2012-11-30 | 2013-05-08 | 徐州工程学院 | Integrated air flotation-membrane bioreactor |
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2012
- 2012-11-30 CN CN2012105057011A patent/CN102976555A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1332124A (en) * | 2001-08-11 | 2002-01-23 | 杭州浙大华滤膜工程有限公司 | High-turbidity water treater with integrated flocculation, air floating and membrane separation functions |
| CN101708933A (en) * | 2009-12-02 | 2010-05-19 | 青岛赛尔环境保护有限公司 | Water treatment device |
| CN102674585A (en) * | 2011-03-14 | 2012-09-19 | 上海市政工程设计研究总院（集团）有限公司 | Combined enhanced treatment process for low-turbidity high-alga raw water |
| CN202924871U (en) * | 2012-11-30 | 2013-05-08 | 徐州工程学院 | Integrated air flotation-membrane bioreactor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708645A (en) * | 2013-12-19 | 2014-04-09 | 武汉尚远环保股份有限公司 | Oil field wastewater treatment equipment |
| CN103708645B (en) * | 2013-12-19 | 2015-06-24 | 武汉尚远环保股份有限公司 | Oil field wastewater treatment equipment |
| CN105330068A (en) * | 2015-11-30 | 2016-02-17 | 无锡工源机械有限公司 | Air flotation and filtering integrated device |
| CN105347567A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Sewage treatment device |
| CN105347563A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Air floating and filtering integrated device |
| CN105347569A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Air-flotation, filtering and membrane-filtering treatment device |
| CN105347567B (en) * | 2015-11-30 | 2018-06-26 | 无锡工源机械有限公司 | A kind of sewage-treatment plant |
| CN105347563B (en) * | 2015-11-30 | 2018-07-24 | 无锡工源机械有限公司 | A kind of air supporting and filtering integral device |
| CN113233707A (en) * | 2021-05-24 | 2021-08-10 | 河南中烟工业有限责任公司 | Air floatation, MBR (membrane bioreactor) and multi-medium filtration integrated smoke plant sewage treatment process equipment |
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Application publication date: 20130320 |