CN101508503A - Coupling biochemical reactor for degradation of persistent organic pollutant in wastewater - Google Patents
Coupling biochemical reactor for degradation of persistent organic pollutant in wastewater Download PDFInfo
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- CN101508503A CN101508503A CNA2009100261335A CN200910026133A CN101508503A CN 101508503 A CN101508503 A CN 101508503A CN A2009100261335 A CNA2009100261335 A CN A2009100261335A CN 200910026133 A CN200910026133 A CN 200910026133A CN 101508503 A CN101508503 A CN 101508503A
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- Prior art keywords
- coupling
- biochemical reactor
- organic pollutant
- degradation
- wastewater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a coupling biochemical reactor capable of degrading durable organic pollutants in wastewater. The coupling biochemical reactor is characterized in that: the reactor consists of a plurality of coupling reaction units in series connection or parallel connection; and each coupling reaction unit comprises an electrochemical device filled with an adsorptive filler which has the electrocatalysis activity and is used as an adhesion framework for the growth of microbes.
Description
Technical field:
The present invention relates to a kind of device that organic waste water is carried out purifying treatment.
Background technology:
POPs is the abbreviation of English Persistent Organic Pollutants, and Chinese is " persistence organic pollutant ", and it is the specific pollutant that a class has environmental persistence, biological accumulation, long-distance migration ability and high bio-toxicity.These organic pollutant Stability Analysis of Structures, biodegradability are poor, and the routine biochemistry method can not effectively be handled, and cause the sewage work can not steady running and qualified discharge.
Summary of the invention:
The object of the present invention is to provide a kind of rational in infrastructurely, can realize organic waste water is carried out the coupling biochemical reactor of persistence organic pollutant in the degrading waste water of purifying treatment.
Technical solution of the present invention is:
The coupling biochemical reactor of persistence organic pollutant in a kind of degrading waste water is characterized in that: by a plurality of coupling reaction units in series or compose in parallel; Each coupling reaction unit comprises electrochemical appliance, and harness has electro catalytic activity, adheres to the adsorptivity filler of skeleton as microorganism growth in the electrochemical appliance.
The adsorptivity filler is that the one-tenth by the following weight ratio example is grouped into: chitosan: attapulgite: gac=1:2:3.
Coupled biological technology of the present invention and absorption, oxidation technology are in one, can effectively realize effective processing to POPs, accumulation in waste water is effectively controlled to specific examples of such components, produce a large amount of OH non-selectivity ground by microbiological deterioration and electrochemical oxidation process the POPs in the waste water is degraded to CO2 and H2O, have advantages such as degraded is thorough, non-secondary pollution.
The present invention is adsorbed onto sorbent material with Persistent organic pollutants POPs in the waste water, realization POPs separates with water body, the HO that produces by electrocatalysis brings out a series of radical chain reaction simultaneously, POPs that adsorbs on the attack sorbent material and the POPs in the water body, make it to be degraded to carbonic acid gas, water and other mineral salts, realize the reprocessing cycle of POPs degraded reduction, mineralising and sorbent material, i.e. the coupling technique of the integrated and materialization-biochemistry-electrochemical effect of fractionation by adsorption-degraded mineralising-adsorbent reactivation
The degradation pathway of POPs of the present invention comprises the acting in conjunction of following three kinds of effects:
The A filler is to the physical and chemical adsorption of pollutent
The B microorganism is to the biological degradation of pollutent
Under the C electrochemical action to the Decomposition of pollutent.
The present invention alternately brings into play each coupling reaction unit its absorption, electrochemical oxidation, biological degradation in time to reach organic effective removal; The POPs clearance reaches 90%; Running cost reduces 1/3-1/2 than the processing costs of traditional treatment method water per ton.Be applicable to the processing of all organic wastewater with difficult degradation thereby.
Description of drawings:
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the schema of one embodiment of the invention.
Fig. 2 is a unitary configuration diagram of coupling reaction.
Embodiment:
The coupling biochemical reactor of persistence organic pollutant in a kind of degrading waste water is made up of a plurality of coupling reactions unit 1 serial or parallel connection; Each coupling reaction unit comprises electrochemical appliance (comprising negative electrode 2, anode 3, power supply 4 etc.), and harness has electro catalytic activity, adheres to the adsorptivity filler 5 of skeleton as microorganism growth in the electrochemical appliance.
The adsorptivity filler is that the one-tenth by the following weight ratio example is grouped into: chitosan: attapulgite: gac=1:2:3.The making method of adsorptivity filler is:
1) prepares acid activation attapulgite and chitosan, and mix by 2:1
2) with gac and 1) mixture in the step adds in the Attapulgite stone flour after the activation in the ratio of 1:1, puts into the ball mill ball milling
3) utilize water glass to be pore forming agent, 4% binding agent and 1% pore forming agent are dissolved in the ionized water, make solution as binding agent, polyvinyl alcohol.
4) acid activation Attapulgite stone flour is put into tablets press, spray into institute during the tablets press rotation and join solution, the limit adds the rotation of solution limit, makes the particle of diameter 2-6mm.
5) particle of making is put into thermostatic drying chamber, 105 ℃ of oven dry.
6) particle is put into the box-shaped resistance furnace, 500 ℃ of roastings, thermal activation 2h takes out behind the naturally cooling, makes the attapulgite composite particles.
Illustrate:
Attapulgite acid activation concrete steps are: with attapulgite powder and concentration is that 2mol/L hydrochloric acid is in certain mass ratio (attapulgite: hydrochloric acid soln=1:4) mix, disperse 2h with high speed dispersor with 1600rad/min at normal temperatures, use vacuum pump and B suction filtration with the circulation ability of swimming more, use deionized water wash, approach 7 up to the pH value.Filter cake is put into thermostatic drying chamber, 105 ℃ of oven dry.Take out the back and pulverize, obtain acid activation Attapulgite stone flour with ball mill ball milling 25min..
Principle of work of the present invention is:
Processed dyeing waste water at first pumps into the first coupling reaction unit, utilize the efficient adsorption filtration of extraordinary sorbing material to fall in the waste water and enter following coupling reaction unit behind the suspended substance and large granular impurity, organic pollutant carries out in the biochemical degradation in to water, thereby form electric field by main counter electrode in the coupled reactor being applied a low voltage, under the effect of extra electric field, with static induction the multiple level of particle filled composite being changed into is a multiple level property particle, promptly become the concurrent green anode reaction of anode at particle one end, the other end becomes negative electrode and cathodic reaction takes place, population in the system forms a spatial electrode, constitute numerous micro cell between the particle, the O that electrolysis produces
2Reduction produces H on negative electrode
2O
2, reaction system catalysis simultaneously generates the hydroxyl radical free radical OH that can destroy the POPs structure, will be adsorbed on most of organic matter degradation mineralising on granule electrode surface like this by direct oxidation and indirect oxidation, makes granule electrode regeneration recover absorption and electrochemical function simultaneously.Can not up to standardly then will go out saliva as water outlet and turn back to reaction member one circular treatment until qualified.
Claims (2)
1, the coupling biochemical reactor of persistence organic pollutant in a kind of degrading waste water is characterized in that: by a plurality of coupling reaction units in series or compose in parallel; Each coupling reaction unit comprises electrochemical appliance, and harness has electro catalytic activity, adheres to the adsorptivity filler of skeleton as microorganism growth in the electrochemical appliance.
2, the coupling biochemical reactor of persistence organic pollutant in the degrading waste water according to claim 1 is characterized in that: the adsorptivity filler is that the one-tenth by the following weight ratio example is grouped into: chitosan: attapulgite: gac=1:2:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100261335A CN101508503B (en) | 2009-03-31 | 2009-03-31 | Coupling biochemical reactor for degradation of persistent organic pollutant in wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100261335A CN101508503B (en) | 2009-03-31 | 2009-03-31 | Coupling biochemical reactor for degradation of persistent organic pollutant in wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101508503A true CN101508503A (en) | 2009-08-19 |
| CN101508503B CN101508503B (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100261335A Expired - Fee Related CN101508503B (en) | 2009-03-31 | 2009-03-31 | Coupling biochemical reactor for degradation of persistent organic pollutant in wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011119043A1 (en) * | 2010-03-24 | 2011-09-29 | Dag Arntsen | Method for removal of contaminations from water |
| CN116651456A (en) * | 2023-05-11 | 2023-08-29 | 浙江大学 | Biocompatible hydrogen evolution electrocatalyst and preparation method and application thereof |
-
2009
- 2009-03-31 CN CN2009100261335A patent/CN101508503B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011119043A1 (en) * | 2010-03-24 | 2011-09-29 | Dag Arntsen | Method for removal of contaminations from water |
| CN116651456A (en) * | 2023-05-11 | 2023-08-29 | 浙江大学 | Biocompatible hydrogen evolution electrocatalyst and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN101508503B (en) | 2010-12-01 |
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Granted publication date: 20101201 Termination date: 20120331 |