CN102887606A - Garbage leachate treatment method using direct current flocculation-MBR (membrane bioreactor) - Google Patents
Garbage leachate treatment method using direct current flocculation-MBR (membrane bioreactor) Download PDFInfo
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- CN102887606A CN102887606A CN 201110201114 CN201110201114A CN102887606A CN 102887606 A CN102887606 A CN 102887606A CN 201110201114 CN201110201114 CN 201110201114 CN 201110201114 A CN201110201114 A CN 201110201114A CN 102887606 A CN102887606 A CN 102887606A
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- membrane bioreactor
- flocculation
- mbr
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- chemical oxidation
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Abstract
The main process of a garbage leachate treatment method using direct current flocculation-MBR is an electroflocculation-chemical oxidation-MBR processing method. The process includes a regulating pool, an electroflocculation reactor, a chemical oxidation pool, an anoxic pool, a membrane bioreactor, and a clean water pool. The method of the present invention has the advantages of integrated simultaneous removal of heavy metals and organics.
Description
Technical field
The invention belongs to the water treatment method field, relate to a kind of method of direct current flocculation-MBR treating refuse percolate.
Background technology
Percolate refers to derive from the moisture that rubbish itself contains in the refuse landfill, the sleet water that enters landfill yard and other moisture, the saturation moisture capacity of deduction rubbish, overburden layer, and experience waste layer and overburden layer and a kind of high-concentration waste water of forming.Generally contain a large amount of heavy metal ion and higher COD content in the percolate, intractability is relatively large.
The reaction principle of electricity flocculation is as anode take metals such as aluminium, iron, under galvanic effect, anode is dissoluted, produce Al, Fe plasma, through a series of hydrolysis, polymerization and ferrous oxidising process, develop into various hydroxo complexes, multinuclear hydroxo complex so that oxyhydroxide, make colloidal state impurity in the waste water, suspended impurity coagulative precipitation and separate. simultaneously, the swimming in electric field of charged contaminant particle, its Partial charge is neutralized by electrode and impels it to take off steady coagulation.
Membrane bioreactor (Membrane Bioreactor, be called for short MBR) be a kind of new and effective wastewater treatment and reuse technique with membrane separation technique and the combination of traditional wastewater biological treatment, day by day obtain extensive concern at international water-treatment technology field in recent years.Membrane separation plant is placed in the reactor, with film the dirt water that contains in the biochemical reaction tank is filtered, active sludge and larger molecular organics matter can be held back, realize mud-water separation, the interior activated sludge concentration of reactor is improved a lot, thereby greatly improved the degradation efficiency of biochemical reaction.The high-level efficiency that the combination of membrane sepn and two technology of biochemical processing process obtains and high-quality water outlet, so that membrane bioreactor has become the world advanced, one of New Wastewater Treatment Technique of tool future.。
Summary of the invention
The method that the purpose of this invention is to provide a kind of direct current flocculation-MBR treating refuse percolate.The present invention combines electric flocculation technique and membrane bioreactor method, is used for the processing of percolate.Invention is adopted direct current flocculation-MBR main process to construct to be equalizing tank, electric flocculation reaction, chemical oxidation pond, anoxic pond, membrane bioreactor and clean water basin.
The present invention is achieved through the following technical solutions:
Percolate is with certain hydraulic detention time flow through successively equalizing tank, electric flocculation reactor, chemical oxidation pond, anoxic pond, membrane bioreactor, finally by water outlet behind the clean water basin.The electricity flocculation reactor is comprised of aluminium or ferroelectric pole plate and dc output power; Membrane bioreactor comprises built-in membrane module and efflux aerator; Chemical oxidation pond adds clorox as strong oxidizer.
Method of the present invention may further comprise the steps:
1. percolate enters electric flocculation reactor after regulating through equalizing tank, under galvanic effect, reactor pole plate generation electrolysis, the electrolytic ion of generation (such as aluminum ion) and heavy metal ion generation flocculation precipitation reaction make in the water heavy metal ion be removed.
2. after percolate flowed into chemical oxidation pond, hardly degraded organic substance was become the easily small molecules attitude of degraded by hypochlorite oxidation, and reduction reaction (such as anti-nitration reaction) occurs in the anoxic pond, further changes the elements such as C, N into lower valency.
3. enter the degraded of membrane bioreactor generation biology aerobic, with organic matter removal; The air supporting effect that aeration produces also makes unmanageable organism float on the water surface.
4. after static for some time, detect each contamination index through clean water basin, can discharge or reuse after reaching respective standard.
The present invention implements according to the method described above, reaches the purpose for the treatment of refuse percolate.
Specific examples
Concrete example slightly.
Claims (2)
1. the method for a direct current flocculation-MBR treating refuse percolate, present method combines electric flocculation technique and membrane bioreactor method, is used for the processing of percolate; Method adopts direct current flocculation-MBR main process to construct to be equalizing tank, electric flocculation reaction, chemical oxidation pond, anoxic pond, membrane bioreactor and clean water basin.
2. the method for claim 1 is characterized in that percolate is with certain hydraulic detention time flow through successively equalizing tank, electric flocculation reactor, chemical oxidation pond, anoxic pond, membrane bioreactor, finally by water outlet behind the clean water basin; The electricity flocculation reactor is comprised of aluminium or ferroelectric pole plate and dc output power; Membrane bioreactor comprises built-in membrane module and efflux aerator; Chemical oxidation pond adds clorox as strong oxidizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110201114 CN102887606A (en) | 2011-07-19 | 2011-07-19 | Garbage leachate treatment method using direct current flocculation-MBR (membrane bioreactor) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110201114 CN102887606A (en) | 2011-07-19 | 2011-07-19 | Garbage leachate treatment method using direct current flocculation-MBR (membrane bioreactor) |
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| CN102887606A true CN102887606A (en) | 2013-01-23 |
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| CN 201110201114 Pending CN102887606A (en) | 2011-07-19 | 2011-07-19 | Garbage leachate treatment method using direct current flocculation-MBR (membrane bioreactor) |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355494A (en) * | 2014-11-07 | 2015-02-18 | 青岛力科环保工程有限公司 | Leachate treatment system for town refuse circulation station |
| CN107986551A (en) * | 2017-10-19 | 2018-05-04 | 辽宁海润环保技术股份有限公司 | A kind of processing method of leachate in garbage transfer station |
| CN114314809A (en) * | 2021-12-16 | 2022-04-12 | 中国科学院生态环境研究中心 | Decentralized sewage treatment device and method |
| CN114956485A (en) * | 2022-06-27 | 2022-08-30 | 上海交通大学 | Biological denitrification treatment method based on enhanced utilization of carbon source in landfill leachate |
| CN115196814A (en) * | 2022-05-23 | 2022-10-18 | 陕西化工研究院有限公司 | Treatment method of landfill leachate |
-
2011
- 2011-07-19 CN CN 201110201114 patent/CN102887606A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355494A (en) * | 2014-11-07 | 2015-02-18 | 青岛力科环保工程有限公司 | Leachate treatment system for town refuse circulation station |
| CN107986551A (en) * | 2017-10-19 | 2018-05-04 | 辽宁海润环保技术股份有限公司 | A kind of processing method of leachate in garbage transfer station |
| CN107986551B (en) * | 2017-10-19 | 2020-07-24 | 辽宁海润环保技术股份有限公司 | Method for treating leachate of garbage transfer station |
| CN114314809A (en) * | 2021-12-16 | 2022-04-12 | 中国科学院生态环境研究中心 | Decentralized sewage treatment device and method |
| CN115196814A (en) * | 2022-05-23 | 2022-10-18 | 陕西化工研究院有限公司 | Treatment method of landfill leachate |
| CN114956485A (en) * | 2022-06-27 | 2022-08-30 | 上海交通大学 | Biological denitrification treatment method based on enhanced utilization of carbon source in landfill leachate |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |