CN105152479B - Modified particles activated carbon couples membrane bioreactor and heavy metal-containing wastewater treatment method - Google Patents
Modified particles activated carbon couples membrane bioreactor and heavy metal-containing wastewater treatment method Download PDFInfo
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- CN105152479B CN105152479B CN201510575482.8A CN201510575482A CN105152479B CN 105152479 B CN105152479 B CN 105152479B CN 201510575482 A CN201510575482 A CN 201510575482A CN 105152479 B CN105152479 B CN 105152479B
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Abstract
The invention discloses a kind of modified particles activated carbon coupling membrane bioreactor and heavy metal-containing wastewater treatment method,Modified particles activated carbon coupling membrane bioreactor of the present invention includes aerating activated sludge reaction tank and membrane module,The aerating activated sludge reaction tank is provided with water inlet and discharge outlet,Bottom is provided with discharge pipeline,And bottom is provided with the aeration tube being connected with aeration pump,Also include modified particles activated carbon component,The modified particles activated carbon component includes hanging the filter screen of frame supports by holding and is filled in the modified particles activated carbon of its interior,The modified particles activated carbon component is arranged in aerating activated sludge reaction tank,The membrane module is arranged at outside aerating activated sludge reaction tank,The discharge outlet is connected by the import of water pump and membrane module,The membrane module is also connected by mud return line with aerating activated sludge reaction tank.Of the invention to improve the treatment effect to waste water compared with conventional membrane bioreactor, strong adaptability is simple, convenient.
Description
Technical field
The present invention relates to a kind of heavy metal-containing wastewater treatment device and method, specifically a kind of modified particles activated carbon
Couple membrane bioreactor and heavy metal-containing wastewater treatment method.
Background technology
In recent decades, as the rapid development of human social economy and modernization industry and mankind itself society are living
Dynamic influence, pollute with much money it is increasingly severe, wherein the most serious with the heavy metal pollution among water body.Heavy metal pollution itself
It is difficult to administer, once heavy metal contaminants water inlet surface water body and beneath water system, due to such heavy metal in itself and its
Compound has the stability and refractory organicses of height, environment and human lives will be formed and greatly threatened.
If cadmium is typical heavy metal element, it is widely present in the environment.Cadmium metal once into human body and triggers metal
It is mainly shown as osteoporosis and softening, liver and kidney failure after poisoning, feels that gnawing pains take no rest all day.Because cadmium is to human body
Murder by poisoning causes national or even worldwide great attention, and National Environment Policy Act clear stipulaties, cadmium is a class of pollutant,
It can not replace targetedly handling with single physical method (such as dilution method), and the cadmium wastewater of plant emissions is without place
The concentration of contained cadmium must not be higher than the standard that country formulates before reason, and cadmium wastewater has to pass through necessary processing and reached by inspection
Just can directly it be discharged below to national standard.
At present, practical heavy metal-containing wastewater treatment method includes hydroxide precipitation method, sulphide precipitation, ion friendship
Change method, absorption method, oxidation-reduction method, iron oxidizing process, membrane separation process and biochemical precipitation method etc..At present, although water body removing heavy metals
Technology has achieved tremendous development, but very big problem also be present in theoretical and application aspect.On the one hand it is in above-mentioned all kinds of methods
It is based primarily upon based on physics and chemical precipitation, produces substantial amounts of metal sludge, secondary emission can produces a very large impact to environment；
Although on the other hand based on the technology of UF membrane with higher development and application prospect, due to serious fouling membrane and pole be present
The problems such as change, influence widely using for isolation technics.
Therefore, how to improve the treatment effect of waste water and the removal of heavy metal is brought into the processing system of waste water, improve
Overall clearance is the technical bottleneck for needing to solve in heavy metal-containing wastewater treatment, to solving the water body of a current generally existing huge sum of money
Category pollution problem has important practical significance and development prospect.
Biologic treating technique is wastewater processing technology widely used at present, but is had in the processing of part metallic wastewater
There is certain limitation.Development with treatment technology and the raising to water quality requirement, membrane bioreactor are this by UF membrane
And the combination of biologic treating technique has high effect and development and application trend to wastewater treatment.Membrane bioreactor (MBR)
It is the water process new technology that UF membrane forms with microbiological treatment technical combinations, with treatment effeciency is high, effluent quality is good, technique
The advantages of many conventional water treatment processes such as flow is short, floor space is small are incomparable, it is considered to be 21st century is most sent out
Open up the water technology of future.At present, membrane Bio-reactor Technology is used by widely research in water process, membrane biological reaction
Device can improve the effect of wastewater treatment, and effluent quality is more excellent, but because heavy metal has certain toxicity to most of biology, because
This there is no the research application report in terms of membrane bioreactor is applied to except heavy metal-containing waste water.Activated carbon adsorbs as a kind of
Agent, widely used in water process, the application study of physical adsorption techniques is more especially in terms of the removal to Heavy Metals in Waters
To be universal.But due to the limitation of adsorption capacity, normally only suction-operated is used in advanced treating, is difficult to make in the treatment of waste water
With the adsorption technology of activated carbon etc..Therefore, it is heavy metal-polluted to research and develop a kind of effectively removal suitable for membrane bioreactor application
The wastewater processing technology and device of dye are significant.
The content of the invention
The present invention is directed to the proposition of problem above, and a kind of modified particles activated carbon of research and design couples membrane bioreactor
And method of wastewater treatment.The technological means that the present invention uses is as follows：
A kind of modified particles activated carbon couples membrane bioreactor, including aerating activated sludge reaction tank and membrane module, institute
State aerating activated sludge reaction tank and be provided with water inlet and discharge outlet, bottom is provided with discharge pipeline, and bottom is provided with and connected with aeration pump
The aeration tube connect, in addition to modified particles activated carbon component, the modified particles activated carbon component include being hung by holding to hang framework and hold
Filter screen and be filled in the modified particles activated carbon of its interior, it is dirty that the modified particles activated carbon component is arranged at aeration activity
In mud reaction tank, the membrane module is arranged at outside aerating activated sludge reaction tank, and the discharge outlet passes through water pump and membrane module
Import connection, the membrane module is also connected by mud return line with aerating activated sludge reaction tank.
Further, the modified particles activated carbon component is platy structure, and framework is hung in outside to hold, and described hold hangs framework
It is made of stainless steel, inside, which is held, hangs the filter screen made of nylon wire, modified particles activity in the modified particles activated carbon component
The amount of charcoal is 1-4g/L, and modified particles activated carbon component is installed in aerating activated sludge reaction tank with below 10cm interval.
Further, the thickness of the modified particles activated carbon component is 1-3cm.
Further, the specific surface area of the modified particles activated carbon is between 1363.8-1548.3m2/g。
Further, the water inlet is arranged at the bottom of aerating activated sludge reaction tank side, and discharge outlet is arranged at exposure
The opposite side in gas activated sludge reaction pond.
A kind of modified particles activated carbon couples membrane bioreactor heavy metal-containing wastewater treatment method, and use is of the present invention
Modified particles activated carbon coupling membrane bioreactor, comprise the following steps：
1. waste water is discharged into aerating activated sludge reaction tank by water inlet, aeration pump is opened；
2. sewage through discharge outlet enters membrane module after being reacted in aerating activated sludge reaction tank；
3. the sewage of aerating activated sludge reaction tank discharge is discharged after membrane module is handled, the sludge in membrane module passes through back
Flow tube is back to aerating activated sludge reaction tank.
Further, step 2. in, microorganism concn maintains 2500mg/L- in the aerating activated sludge reaction tank
3500mg/L, between pH value maintains 6.5-8.5, residence time of the sewage in aerating activated sludge reaction tank is 3.5-4.5
Hour.
Compared with the prior art, at a kind of modified particles activated carbon coupling membrane bioreactor and waste water of the present invention
Reason method has the advantages that：
(1) it is of the invention compared with conventional membrane bioreactor, the treatment effect to heavy metal-containing waste water can be improved, is adapted to
Property is strong, simple, convenient.
(2) it is of the invention by the multiaction efficient coupling such as modified particles charcoal absorption, bio-absorbable and metabolism, biological adsorption
One, effective removal purpose to heavy metal in water is realized, strong adaptability, is adapted to the improvement of heavy metal-containing waste water, removing heavy metals
Effect is good；
(3) present invention acts on by the lotus rhizome of modified particles activated carbon, promotes the formation and growth of zoogloea, adds and connect
Contacting surface is accumulated, and is promoted the cohesion of zoogloea, is improved the settling property of sludge, reduces the discharge capacity of sludge；
(4) present invention reduces the sludge concentration into membrane module, reduces the dirt of film by the aggtegation of granular activated carbon
Dye；
(5) present invention is coupled in membrane bioreactor using modified particles activated carbon, improves adaptability and the place of waste water
Manage effect；
(6) present invention can intermittently operated can also operate continuously, be both adapted to the batch processed of small water, be adapted to continuous place again
Reason, it is workable；
(7) modified particles activated carbon is built into framework suspention filter screen sheet, readily replaceable regeneration in the present invention；
(8) present invention process is advanced, stable, simple to operate, and equipment is easily managed operation, has stronger practicality
Property, economy.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure：1st, aerating activated sludge reaction tank；2nd, water inlet；3rd, discharge outlet；4th, delivery port；5th, aeration tube；6th, it is aerated
Pump；7th, membrane module；8th, modified particles activated carbon component；9th, water pump；10th, discharge pipeline；11st, mud return line；12nd, activated sludge；
13rd, hold and hang framework；14th, filter screen.
Embodiment
As shown in figure 1, a kind of modified particles activated carbon coupling membrane bioreactor, including aerating activated sludge reaction tank 1
With membrane module 7, the aerating activated sludge reaction tank 1 is provided with water inlet 2 and discharge outlet 3, and bottom is provided with discharge pipeline 10, and bottom
Portion is provided with the aeration tube 5 being connected with aeration pump 6, in addition to modified particles activated carbon component 8, the modified particles activated carbon component
8 include being hung framework 13 by holding and being held the filter screen 14 hung and the modified particles activated carbon being filled in inside filter screen 14, the modified particles
Activated carbon component 8 is arranged in aerating activated sludge reaction tank 1, under certain waterpower and gas shock, filter screen 14 and inside
Modified particles activated carbon can be suspended in aerating activated sludge reaction tank 1 in certain limit, modified particles activated carbon can be with
Regeneration is changed at any time.The membrane module 7 is arranged at outside aerating activated sludge reaction tank 1, the discharge outlet 3 by water pump 9 with
The import connection of membrane module 7, the membrane module 7 are also connected by mud return line 11 with aerating activated sludge reaction tank 1.
The modified particles activated carbon component 8 is platy structure, holds and hangs framework 13, and described hold hangs framework 13 by stainless steel
Into inside, which is held, hangs filter screen 14 made of nylon wire, and the amount of modified particles activated carbon is in the modified particles activated carbon component 8
1-4g/L, modified particles activated carbon component are installed in aerating activated sludge reaction tank 1 with below 10cm interval.
The thickness of the modified particles activated carbon component 8 is 1-3cm.
The specific surface area of the modified particles activated carbon is between 1363.8-1548.3m2/g。
The water inlet 2 is arranged at the bottom of the side of aerating activated sludge reaction tank 1, and discharge outlet 3 is arranged at aeration activity
The opposite side of sludge reaction pond 1.
A kind of modified particles activated carbon couples membrane bioreactor heavy metal-containing wastewater treatment method, uses the present embodiment institute
The modified particles activated carbon coupling membrane bioreactor stated, comprises the following steps：
1. waste water is discharged into aerating activated sludge reaction tank 1 by water inlet, aeration pump 6 is opened；
2. sewage enters membrane module 7 after reaction in aerating activated sludge reaction tank 1 through discharge outlet 3；
3. the sewage that aerating activated sludge reaction tank 1 is discharged is discharged after the processing of membrane module 7 through delivery port 4, membrane module 7
In sludge be back to aerating activated sludge reaction tank 1 through return duct.
Step 2. in, microorganism concn maintains 2500mg/L-3500mg/L in the aerating activated sludge reaction tank 1,
Between pH value maintains 6.5-8.5, residence time of the sewage in aerating activated sludge reaction tank 1 is 3.5-4.5 hours.
In the present embodiment, granular activated carbon first passes around modification, improve its specific surface area (specific surface area between
1363.8-1548.3m2/ g) and surface micropore ratio, while surface can produce charcoal oxygen groups etc..Reacted in aerating activated sludge
Chi Zhong, on the one hand modified particles activated carbon can adsorb the heavy metal in water by huge specific surface area and porous surface, another
Aspect can promote the cohesion of zoogloea by charcoal oxygen groups of Surface Creation etc., add connecing for activated sludge and water pollutant
Have a sudden inspiration meeting, Accelerative mass transfer, promote metabolic adsorption of the sludge to pollutant, while change the settling property of activated sludge, and reduce
Sludge realizes effective processing of waste water and efficiently separates heavy metal in water removal, while change dirt in the adhesion deposition on film surface
The settling property of mud, reduce sludge volume.The a large amount of activated sludge grown in aerating activated sludge reaction tank can be absorbed in water
Heavy metal and the metabolism for participating in microorganism, while the sticky metabolin such as the polysaccharide on activated sludge surface can be adsorbed in water
Heavy metal；Modified particles activated carbon assembles sludge, can reduce the sludge concentration into membrane module, reduce the pollution of film, extends
The service life of film.
Embodiment one
React target solution volume：160L
Aerating activated sludge reaction tank activated sludge concentration：3400mg/L；
React target solution temperature：25℃；
React target solution pollutant initial concentration：CODCrFor 400mg/L, Cd2+For 2.5mg/L；
Solution initial pH value is 8.3；
(wherein 0 represents not add modified the amount 0-4g/L of modified particles activated carbon in modified particles activated carbon component
Grain activated carbon, reactor are interior only with biological treatment)；
Aerated reaction pond residence time 4h；
Operate in batches, handle cadmium wastewater, in different modified particles concentration of activated carbon, the removal situation of cadmium wastewater
It is shown in Table 1.
Table 1：(initial cadmium content is the treatment effect of modified particles activated carbon coupling Membrane Bioreactor for Wastewater Treatment cadmium wastewater
2.5mg/L, residence time 4h)
| The concentration (g/L) of modified particles activated carbon in component | Cd2+(cadmium) clearance (%) | CODCrClearance (%) |
| 0 | 98.0 | 89.5 |
| 0.05 | 98.2 | 89.7 |
| 0.1 | 98.4 | 90.5 |
| 0.2 | 98.6 | 91.3 |
| 0.4 | 98.8 | 92.0 |
| 0.6 | 98.8 | 92.0 |
| 0.8 | 99.4 | 93.5 |
| 1.0 | 99.7 | 95.5 |
| 1.5 | 99.8 | 96.3 |
| 2.0 | 99.9 | 97.0 |
| 3.0 | 99.9 | 97.5 |
| 4.0 | 99.9 | 98.3 |
From embodiment as can be seen that being arranged on for modified particles activated carbon component greatly enhances membrane biological reaction
Device is to cadmium and CODCrRemoval effect, while to pollutant have well adapt to effect.In modified particles activated carbon coupled film
In bioreactor for treatment cadmium wastewater, there is the suction-operated of modified activated carbon, but suction-operated is little, and modified activated carbon is main
By improving the settling property of sludge, the concentration of change activated sludge and promoting the effects such as flocculation, increase mass transfer, the place of waste water is improved
Reason effect simultaneously reduces the moisture content of sludge, reduces sludge volume.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (3)
1. a kind of modified particles activated carbon couples membrane bioreactor, it is made up of aerating activated sludge reaction tank and membrane module, institute
State aerating activated sludge reaction tank and be provided with water inlet and discharge outlet, bottom is provided with discharge pipeline, and bottom is provided with and connected with aeration pump
The aeration tube connect, it is characterised in that：Modified particles activated carbon component, the modified particles activity are provided with aeration active reaction pond
Charcoal component is formed by holding to hang framework and hold the filter screen hung and be filled in the modified particles activated carbon of its interior, and the modified particles are lived
Property charcoal component is arranged in aerating activated sludge reaction tank, and the membrane module is arranged at outside aerating activated sludge reaction tank, institute
State discharge outlet to connect by the import of water pump and membrane module, the membrane module is also anti-with aerating activated sludge by mud return line
Pond is answered to connect；
The modified particles activated carbon component is platy structure, and framework is hung to hold in outside, and described hold is hung framework and be made of stainless steel,
Inside, which is held, hangs the filter screen made of nylon wire, and the amount of modified particles activated carbon is 1-4g/ in the modified particles activated carbon component
L, modified particles activated carbon component are installed in aerating activated sludge reaction tank with below 10cm interval；
The thickness of the modified particles activated carbon component is 1-3cm；
The specific surface area 1363.8-1548.3m of the modified particles activated carbon2/ g, surface have charcoal oxygen groups；
The water inlet is arranged at the bottom of aerating activated sludge reaction tank side, and discharge outlet is arranged at aerating activated sludge reaction
The opposite side in pond.
2. a kind of modified particles activated carbon couples membrane bioreactor heavy metal-containing wastewater treatment method, such as claim 1 is used
Described modified particles activated carbon coupling membrane bioreactor, it is characterised in that：Comprise the following steps：
1. waste water is discharged into aerating activated sludge reaction tank by water inlet, aeration pump is opened；
2. sewage through discharge outlet enters membrane module after being reacted in aerating activated sludge reaction tank；
3. the sewage of aerating activated sludge reaction tank discharge is discharged after membrane module is handled, the sludge in membrane module is through return duct
It is back to aerating activated sludge reaction tank.
3. modified particles activated carbon according to claim 2 couples membrane bioreactor heavy metal-containing wastewater treatment method,
It is characterized in that：Step 2. in, microorganism concn maintains 2500mg/L-3500mg/ in the aerating activated sludge reaction tank
L, between pH value maintains 6.5-8.5, residence time of the sewage in aerating activated sludge reaction tank is 3.5-4.5 hours.
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| CN105776652B (en) * | 2014-12-23 | 2019-03-12 | 北京国电富通科技发展有限责任公司 | A kind of absorption-the membrane-separation water treatment device and method of excess sludge reinforcing |
| CN107055765A (en) * | 2017-05-24 | 2017-08-18 | 深圳信息职业技术学院 | The MBR processing of heavy metal compound wastewater and heavy metal recovery System and method for |
| JP7437139B2 (en) | 2019-11-19 | 2024-02-22 | 住友重機械エンバイロメント株式会社 | Water treatment equipment and water treatment method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200197712Y1 (en) * | 2000-04-17 | 2000-09-15 | 한국건설기술연구원 | Water treatment apparatus using granular membrane bio-reactor |
| CN101323484A (en) * | 2008-07-25 | 2008-12-17 | 山东大学 | Nesting type multidimensional membrane assembly dynamic membrane bioreactor |
| CN102249414A (en) * | 2011-07-08 | 2011-11-23 | 华侨大学 | Integrated GAC (granular activated carbon)-DMBR (dynamic membrane bio-reactor) sewage treatment device and treatment process thereof |
| CN103387316A (en) * | 2013-08-06 | 2013-11-13 | 常州友达环保科技有限公司 | Hybrid two-stage membrane bio-reactor (MBR) |
| CN103466876A (en) * | 2013-08-06 | 2013-12-25 | 常州友达环保科技有限公司 | External double-stage membrane bioreactor |
| WO2014086033A1 (en) * | 2012-12-07 | 2014-06-12 | General Electric Company | Use of activated carbon in membrane bioreactor |
| CN104773815A (en) * | 2015-03-23 | 2015-07-15 | 厦门大学 | Method utilizing active carbon to control MBR membrane pollution |
-
2015
- 2015-09-09 CN CN201510575482.8A patent/CN105152479B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200197712Y1 (en) * | 2000-04-17 | 2000-09-15 | 한국건설기술연구원 | Water treatment apparatus using granular membrane bio-reactor |
| CN101323484A (en) * | 2008-07-25 | 2008-12-17 | 山东大学 | Nesting type multidimensional membrane assembly dynamic membrane bioreactor |
| CN102249414A (en) * | 2011-07-08 | 2011-11-23 | 华侨大学 | Integrated GAC (granular activated carbon)-DMBR (dynamic membrane bio-reactor) sewage treatment device and treatment process thereof |
| WO2014086033A1 (en) * | 2012-12-07 | 2014-06-12 | General Electric Company | Use of activated carbon in membrane bioreactor |
| CN103387316A (en) * | 2013-08-06 | 2013-11-13 | 常州友达环保科技有限公司 | Hybrid two-stage membrane bio-reactor (MBR) |
| CN103466876A (en) * | 2013-08-06 | 2013-12-25 | 常州友达环保科技有限公司 | External double-stage membrane bioreactor |
| CN104773815A (en) * | 2015-03-23 | 2015-07-15 | 厦门大学 | Method utilizing active carbon to control MBR membrane pollution |
Non-Patent Citations (1)
| Title |
|---|
| 添加剂(PAC)耦合膜生物反应器处理低浓度含Cd2+废水的硏究;赵家良;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20121015(第10期);摘要、正文第26-29页、33页 * |
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