CN101823808A - Garbage leachate treatment process - Google Patents
Garbage leachate treatment process Download PDFInfo
- 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
- Authority
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 238000001728 nano-filtration Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 238000005516 engineering process Methods 0.000 claims description 21
- 230000001651 autotrophic Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000012528 membrane Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000006396 nitration reaction Methods 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 238000011068 load Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000001580 bacterial Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001546 nitrifying Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
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
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.
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)
| Publication Number | Publication Date |
|---|---|
| CN101823808A true CN101823808A (en) | 2010-09-08 |
Family
ID=42688008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910255642A Pending CN101823808A (en) | 2009-12-10 | 2009-12-10 | Garbage leachate treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101823808A (en) |
Cited By (3)
| 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 |
-
2009
- 2009-12-10 CN CN200910255642A patent/CN101823808A/en active Pending
Cited By (3)
| 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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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100908 |