CN101823808A - Garbage leachate treatment process - Google Patents

Garbage leachate treatment process Download PDF

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Publication number
CN101823808A
CN101823808A CN200910255642A CN200910255642A CN101823808A CN 101823808 A CN101823808 A CN 101823808A CN 200910255642 A CN200910255642 A CN 200910255642A CN 200910255642 A CN200910255642 A CN 200910255642A CN 101823808 A CN101823808 A CN 101823808A
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CN
China
Prior art keywords
percolate
reactor
garbage leachate
nitrogen removal
nanofiltration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200910255642A
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Chinese (zh)
Inventor
张寿通
刘保良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DEZHOU LVNENG WATER TREATMENT Co Ltd
Original Assignee
DEZHOU LVNENG WATER TREATMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DEZHOU LVNENG WATER TREATMENT Co Ltd filed Critical DEZHOU LVNENG WATER TREATMENT Co Ltd
Priority to CN200910255642A priority Critical patent/CN101823808A/en
Publication of CN101823808A publication Critical patent/CN101823808A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention relates to a garbage leachate treatment process. The concrete flows include: garbage leachate is firstly treated by a composite anaerobic baffling reactor, then the garbage leachate is treated by the core single-stage autrophism denitrification film biological reactor, and finally effluent is output after meeting requirement by nanofiltration treatment. Compared with the existing process, the process can obviously reduce treatment cost, improves treatment effect and has wide market application prospect.

Description

Garbage leachate treatment process
Technical field
The present invention relates to a kind of water pollution control technology, especially garbage leachate treatment process.
Background technology
Percolate is the secondary pollutant of refuse landfill association, is mainly derived from the interior moisture of precipitation and rubbish itself.Because liquid has many factors may have influence on the character of percolate in flow process, comprises physical factor, chemical factor and biotic factor etc., so the character of percolate changes in a sizable scope.The component complexity of percolate, Pollutant levels height, big, the strong toxicity of colourity not only contain a large amount of organic pollutants, also contain all kinds of heavy metal contaminants, are a kind of high concentrated organic wastewaters of complicated component.The improper disposal of percolate not only influences the quality of surface water, goes back the phreatic safety of entail dangers to, handles and does not directly enter environment if do not add, and can cause serious environmental to pollute.At present, comparatively generally accepted refuse leachate treatment technology is:
(1) adopt " biochemistry+materialization " Technology to handle percolate, the biochemical treatment process can be degraded effectively, removal of pollutants, but is subjected to the not restriction of bio-degradable resistates existence, generally only can reach (GB16889-1997) three grades of emission standards.
(2) directly adopt " high-pressure membrane separation " Technology to handle percolate, the membrane sepn treating processes can be divided dried up and pollutent effectively, can reach (GB16889-1997) first discharge standard, but, correspondingly can produce concentrated sewage more difficult in a large number, that dispose because the membrane sepn processing can not be degraded, removal of pollutants.
(3) comprehensive " biochemistry+materialization+membrane sepn " Technology that adopts is handled percolate, can reach (GB16889-1997) first discharge standard.Wherein, the biochemical treatment process can be degraded effectively, removal of pollutants, and the membrane sepn treating processes can be separated effectively and removed the not amounts of residual contamination do of bio-degradable, but also can produce condensed water.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of garbage leachate treatment process, the problem that exists at the percolate water quality characteristic with in the pre-treatment reduces processing cost, improves processing efficiency, realizes qualified discharge.
The technical solution adopted for the present invention to solve the technical problems is: garbage leachate treatment process, and idiographic flow is:
Percolate → composite anaerobic baffled reactor → one-step autotrophic nitrogen removal membrane bioreactor → nanofiltration → water outlet up to standard
1, percolate at first passes through the composite anaerobic baffled reactor, by in the effective treating refuse percolate of anaerobic hydrolysis, acidifying and methanation can biochemical organism, and recycle the biogas resource of its output.
2, the water after the composite anaerobic baffled reactor is handled enters the core one-step autotrophic nitrogen removal membrane bioreactor of this technology again, and generation part short distance nitration and anaerobism ammonia nitriding are finished the single-stage denitrification process in this reactor.
3, the water that goes out of one-step autotrophic nitrogen removal film bioreactor device is after after nanofiltration handles, reach " household refuse landfill sites pollution control criterion " (GB16889-2008) direct water outlet up to standard.
Characteristics of the present invention:
(1) this project adopts composite anaerobic baffled reactor-one-step autotrophic nitrogen removal bioreactor-nano filtering membrane technology to carry out the percolate processing, than existing treatment technology, the processing efficiency height, processing cost is low, the energy and resource consumption are few, be a kind of sustainability sewage treatment process, have important generalization and application value.
(2) adopt the composite anaerobic baffled reactor, but can remove the biochemical component in the percolate, simultaneously, the hardly degraded organic substance acidication can be improved the percolate biodegradability.This reactor has the processing efficiency height, effectively prevents sludge loss, the advantage of strong shock resistance.
(3) the one-step autotrophic nitrogen removal technology is compared with traditional nitrated-denitrification denitrogenation technology, has following advantage:
(1) short distance nitration-anaerobic ammoxidation technology can reduce 64.1% than traditional nitrated-denitrification technology oxygen-consumption, and the oxygen supply energy consumption is declined to a great extent;
(2) because ammonia can be directly as the electron donor of anti-nitration reaction, and therefore no longer needing to add organism makes electron donor, both cost savings prevent secondary pollution again;
(3) short distance nitration-anaerobic ammoxidation process integration sludge output is little, can save 80% sludge treatment energy consumption nearly;
(4) sludge activity of short distance nitration-anaerobic ammoxidation biological denitrificaion and reactor capacity thereof all are higher than the nitrated-denitrification in the traditional sludge method far away, can improve processing speed and the volume that reduces reactor.
(5) terminal unit that adopts ultrafiltration membrane bioreactor-nanofiltration technique to handle as percolate can significantly improve effluent quality, guarantees the water outlet qualified discharge.
The invention has the beneficial effects as follows that compare with existing technology, this technology can significantly reduce processing cost, improve treatment effect, have wide market application prospect.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the process flow sheet of garbage leachate treatment process.
1. percolates among the figure, 2. composite anaerobic baffled reactor, 3. one-step autotrophic nitrogen removal membrane bioreactor, 4. nanofiltration.
Embodiment
In Fig. 1, garbage leachate treatment process, idiographic flow is:
Percolate → composite anaerobic baffled reactor → one-step autotrophic nitrogen removal membrane bioreactor → nanofiltration → water outlet up to standard
1, percolate (1) at first passes through composite anaerobic baffled reactor (2), by in the effective treating refuse percolate of anaerobic hydrolysis, acidifying and methanation can biochemical organism, and recycle the biogas resource of its output.Strong, the organic loading rate height of this reactor capacity of resisting impact load, the processing efficiency height, and can prevent that anaerobic sludge runs off because filler is set.
2, the water after the composite anaerobic baffled reactor is handled enters the core one-step autotrophic nitrogen removal membrane bioreactor (3) of this technology again, and this reactor especially is fit to handle the lower high ammonia-nitrogen wastewater of C/N.Percolate is after anaerobic treatment, and ammonia nitrogen concentration is very high, and further the purpose of handling is exactly the ammonia nitrogen of removing wherein.In one-step autotrophic, by limit oxygen and sequence batch (operational mode,, create the condition that is beneficial to the part nitrifying process by measures such as control dissolved oxygen, pH, basicity, finish denitrogenation and remove the ammonia nitrogen process.Adopt one-step autotrophic nitrogen removal technology, the nitric efficiency height, it is minimum to handle energy consumption and cost.With respect to other autotrophic denitrification technology, adopt one-step autotrophic nitrogen removal technology, have remarkable advantages for bacterial classification enrichment, technology startup operation and effluent characteristics.
3, the water that goes out of one-step autotrophic nitrogen removal film bioreactor device is after after nanofiltration (4) handles, reach " household refuse landfill sites pollution control criterion " (GB16889-2008) direct water outlet up to standard.

Claims (1)

1. garbage leachate treatment process, it is characterized in that: idiographic flow is: percolate → composite anaerobic baffled reactor → one-step autotrophic nitrogen removal membrane bioreactor → nanofiltration → water outlet up to standard
(1), percolate at first passes through the composite anaerobic baffled reactor, by in the effective treating refuse percolate of anaerobic hydrolysis, acidifying and methanation can biochemical organism, and recycle the biogas resource of its output,
(2), the water of composite anaerobic baffled reactor after handling, enter the core one-step autotrophic nitrogen removal membrane bioreactor of this technology again, in this reactor the part short distance nitration takes place and the anaerobism ammonia nitriding is finished the single-stage denitrification process,
(3), the water that goes out of one-step autotrophic nitrogen removal film bioreactor device, after after nanofiltration handles, direct water outlet up to standard.
CN200910255642A 2009-12-10 2009-12-10 Garbage leachate treatment process Pending CN101823808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910255642A CN101823808A (en) 2009-12-10 2009-12-10 Garbage leachate treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910255642A CN101823808A (en) 2009-12-10 2009-12-10 Garbage leachate treatment process

Publications (1)

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CN101823808A true CN101823808A (en) 2010-09-08

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CN200910255642A Pending CN101823808A (en) 2009-12-10 2009-12-10 Garbage leachate treatment process

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CN (1) CN101823808A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109775863A (en) * 2019-03-06 2019-05-21 清华大学 High concentrated organic wastewater anaerobism embrane method water handling reclamation set and technique
CN110372096A (en) * 2019-07-26 2019-10-25 中国恩菲工程技术有限公司 The processing method of garbage leachate
CN110451721A (en) * 2019-08-08 2019-11-15 同济大学 A kind of garbage burning factory percolate carbon and nitrogen removal processing unit and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109775863A (en) * 2019-03-06 2019-05-21 清华大学 High concentrated organic wastewater anaerobism embrane method water handling reclamation set and technique
CN110372096A (en) * 2019-07-26 2019-10-25 中国恩菲工程技术有限公司 The processing method of garbage leachate
CN110451721A (en) * 2019-08-08 2019-11-15 同济大学 A kind of garbage burning factory percolate carbon and nitrogen removal processing unit and method

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Open date: 20100908