CN101224935A - Method for treating landfill leachate - Google Patents
Method for treating landfill leachate Download PDFInfo
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- CN101224935A CN101224935A CNA2007100729647A CN200710072964A CN101224935A CN 101224935 A CN101224935 A CN 101224935A CN A2007100729647 A CNA2007100729647 A CN A2007100729647A CN 200710072964 A CN200710072964 A CN 200710072964A CN 101224935 A CN101224935 A CN 101224935A
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- percolate
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- rubbish leachate
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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 relates to a processing method of garbage percolate, which comprises the following steps of pretreatment, biological treatment and advanced treatment. The processing method of garbage percolate of the invention aims at the characteristics of the percolate of garbage incineration plants, adopts a three stage type processing system and arranges a plurality of adjusting facilities, thus guaranteeing stable and highly efficient operation of the whole system and finally causing the garbage percolate to achieve discharge standards.
Description
[technical field]
The present invention relates to a kind of rubbish leachate treatment method, particularly relate to a kind of rubbish leachate treatment method that is used for garbage burning factory.
[background technology]
The percolate that garbage burning factory produces, similar to the percolate that refuse landfill produces, all be the very high sewage of pollutent index level, difference be percolate that garbage burning factory produces on every pollutent index than landfill yard produce higher.
Percolate will be if unprocessed discharging environment will cause severe contamination, and at present, the percolate that garbage burning factory produces does not still have sophisticated treatment process.
[summary of the invention]
The present invention the invention provides a kind of rubbish leachate treatment method that is used for garbage burning factory in order to overcome above-mentioned the deficiencies in the prior art.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rubbish leachate treatment method is provided, and it may further comprise the steps: pre-treatment; Biological treatment; Advanced treatment.
The scheme that the present invention solves further technical problem is: this pre-treatment may further comprise the steps: percolate is stayed for some time the flow of regulating and storing in an equalizing tank; Percolate is fed a reaction settling basin finish the suspended solids precipitation; Percolate is fed an ammonia blow-removing system stripping go out ammonia; Percolate is fed a pH value equalizing tank.
The scheme that the present invention solves further technical problem is: percolate is 10 days at the hydraulic detention time of equalizing tank.
The scheme that the present invention solves further technical problem is: in reaction settling basin, by adding flocculation agent and slaked lime, make that the suspended solids in the percolate is finished precipitation.
The scheme that the present invention solves further technical problem is: add a certain amount of sulfuric acid at pH value equalizing tank, percolate pH value is adjusted to neutrality.
The scheme that the present invention solves further technical problem is: this biological treatment may further comprise the steps: the percolate that pretreatment stage is handled feeds a heating system; Percolate is fed an anaerobic reation pool; Percolate is fed an Aerobic Pond carry out aerobic treatment.
The scheme that the present invention solves further technical problem is: this heating system is heated to 30-35 degree centigrade with percolate, carries out the anaeration in normal temperature reaction.
The scheme that the present invention solves further technical problem is: this anaerobic reation pool is a two-stage type UBF anaerobic reation pool.
The scheme that the present invention solves further technical problem is: this Aerobic Pond is the SBR pond of having added floating stuffing.
The scheme that the present invention solves further technical problem is: this advanced treatment may further comprise the steps: percolate is fed a filtering system to remove the suspended substance in the water; Just percolate feeds an ozone oxidation system, to being difficult to the biodegradable organic chemical oxidation that carries out in the water, makes pollution substance be oxidized into CO completely
2And H
2O; Percolate is fed a nanofiltration membrane treatment system, multiple larger molecular organics in the interception water; Standard compliant water is discharged.
Compared to prior art, the invention has the beneficial effects as follows: rubbish leachate treatment method of the present invention is at the characteristic of garbage burning factory percolate, adopt three stage treatment systems, and had many places to regulate the setting of facility, guaranteed the stable and high effective operation of whole system; The anaerobion that is arranged so that of two-stage UBF is able to good separation mutually, has improved the processing efficiency of anaerobic reactor; UBF has adopted the system of preheating simultaneously, can keep the stable of reactor operating temperature.
[description of drawings]
Fig. 1 is the schema of rubbish leachate treatment method of the present invention.
[embodiment]
Below in conjunction with drawings and Examples rubbish leachate treatment method of the present invention is described further.
Rubbish leachate treatment method of the present invention may further comprise the steps:
The S1 pre-treatment
This pre-treatment may further comprise the steps: percolate is stayed for some time the flow of regulating and storing in an equalizing tank; Percolate is fed a reaction settling basin finish the suspended solids precipitation; Percolate is fed an ammonia blow-removing system stripping go out ammonia; Percolate is fed a pH value equalizing tank.
Wherein at pretreatment stage, this equalizing tank is that a hydraulic detention time is 10 days a equalizing tank, the flow of percolate and water quality all are very unsettled, and this equalizing tank can play the effect of the flow of regulating and storing, and percolate can be finished anaerobic hydrolysis to a certain degree in the pond simultaneously.
In reaction settling basin, by adding flocculation agent and slaked lime, make that the suspended solids in the percolate is finished precipitation, simultaneously Ca (OH) by adding
2, ionizing event takes place in water:
Ca(OH)
2→Ca
2++2OH
-
This reaction has the beneficial effect of two aspects, and the first is regulated pH value to 10～11 of percolate, for follow-up ammonia stripping is got ready; It two is to pass through OH
-Heavy metal ion in ion and the percolate reacts, and generates precipitation of hydroxide, thereby precipitation and disengaging from percolate guarantees the steady running of subsequent biological treatment technology.
The ammonia blow-removing system, by air blast, from percolate with the NH of molecular state
3Stripping comes out, and forms ammonia, and at high altitude discharge.
Through after the stripping, percolate is fed a pH value equalizing tank, the actual pH situation according to percolate adds a certain amount of sulfuric acid, and the pH value is adjusted to neutrality, helps follow-up biological treatment.
The S2 biological treatment
This biological treatment may further comprise the steps: the percolate that pretreatment stage is handled feeds a heating system; Percolate is fed an anaerobic reation pool; Percolate is fed an Aerobic Pond carry out aerobic treatment.
Percolate enters biological treatment stage, at first is a heating system, and percolate is carried out to a certain degree heating, rises to 30-35 degree centigrade until the garbage filter liquid temp, carries out the anaeration in normal temperature reaction.
After heating system, enter two-stage type UBF anaerobic reation pool, the UBF anaerobic reation pool is the anaerobic reactor of the third generation, have many outstanding advantages, in this technology, for energy stable treated percolate, be provided with two-stage UBF anaerobic reactor, what wherein first step UBF played mainly is the effect of acidication, second stage UBF plays a part to produce methane fermentation, by the setting of two-stage UBF, makes that main two quasi-microorganisms of anaerobic reaction are kept respectively mutually in the UBF reactor, form separately independently running environment and condition, help improving the operational efficiency of UBF.
After UBF, the treatment stage of entering aerobe, percolate is fed the SBR pond that is added with floating stuffing, interpolation by floating stuffing, biofilm treatment system has been introduced active sludge processing system, can improve processing power and efficient greatly, the ability of denitrogenation dephosphorizing also is able to further raising in addition.Floating stuffing has been added in this SBR pond, the processing efficiency the treatment stage of having improved aerobe.
The S3 advanced treatment
This advanced treatment may further comprise the steps: percolate is fed a filtering system to remove the suspended substance in the water; Just percolate feeds an ozone oxidation system, to being difficult to the biodegradable organic chemical oxidation that carries out in the water, makes pollution substance be oxidized into CO completely
2And H
2O; Percolate is fed a nanofiltration membrane treatment system, multiple larger molecular organics in the interception water; Standard compliant water is discharged.
At first be that percolate is fed a filtering system,, remove the suspended substance in the water by the filtering separation effect of microfiltration membrane.
Then percolate is fed an ozone oxidation system,, can finish, make pollution substance be oxidized into CO completely being difficult to biodegradable organic chemical oxidation in the water by adding ozone
2And H
2O.This ozone oxidation system has very high operational efficiency, and the removal of pollution substance is had clearly effect.
Through after the ozone oxidation, percolate has entered the nanofiltration membrane treatment system, and nanofiltration membrane can be tackled larger molecular organics multiple in the water, guarantees that the organic concentration in the water outlet greatly reduces, and finally satisfies water quality standard.
Rubbish leachate treatment method of the present invention is at the characteristic of garbage burning factory percolate, adopted three stage treatment systems, and had the many places to regulate the setting of facility, guarantees the stable and high effective operation of whole system; The anaerobion that is arranged so that of two-stage UBF is able to good separation mutually, has improved the processing efficiency of anaerobic reactor; UBF has adopted the system of preheating simultaneously, can keep the stable of reactor operating temperature.
Claims (10)
1. rubbish leachate treatment method, it may further comprise the steps: pre-treatment; Biological treatment; Advanced treatment.
2. rubbish leachate treatment method according to claim 1 is characterized in that: this pre-treatment may further comprise the steps: percolate is stayed for some time the flow of regulating and storing in an equalizing tank; Percolate is fed a reaction settling basin finish the suspended solids precipitation; Percolate is fed an ammonia blow-removing system stripping go out ammonia; Percolate is fed a pH value equalizing tank.
3. rubbish leachate treatment method according to claim 2 is characterized in that: percolate is 10 days at the hydraulic detention time of equalizing tank.
4. rubbish leachate treatment method according to claim 2 is characterized in that: in reaction settling basin, by adding flocculation agent and slaked lime, make that the suspended solids in the percolate is finished precipitation.
5. rubbish leachate treatment method according to claim 2 is characterized in that: add a certain amount of sulfuric acid at pH value equalizing tank, percolate pH value is adjusted to neutrality.
6. rubbish leachate treatment method according to claim 1 is characterized in that: this biological treatment may further comprise the steps: the percolate that pretreatment stage is handled feeds a heating system; Percolate is fed an anaerobic reation pool; Percolate is fed an Aerobic Pond carry out aerobic treatment.
7. rubbish leachate treatment method according to claim 6 is characterized in that: this heating system is heated to 30-35 degree centigrade with percolate, carries out the anaeration in normal temperature reaction.
8. rubbish leachate treatment method according to claim 6 is characterized in that: this anaerobic reation pool is a two-stage type UBF anaerobic reation pool.
9. rubbish leachate treatment method according to claim 6 is characterized in that: this Aerobic Pond is the SBR pond of having added floating stuffing.
10. rubbish leachate treatment method according to claim 1 is characterized in that: this advanced treatment may further comprise the steps: percolate is fed a filtering system to remove the suspended substance in the water; Just percolate feeds an ozone oxidation system, to being difficult to the biodegradable organic chemical oxidation that carries out in the water, makes pollution substance be oxidized into CO completely
2And H
2O; Percolate is fed a nanofiltration membrane treatment system, multiple larger molecular organics in the interception water; Standard compliant water is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100729647A CN101224935A (en) | 2007-01-15 | 2007-01-15 | Method for treating landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100729647A CN101224935A (en) | 2007-01-15 | 2007-01-15 | Method for treating landfill leachate |
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| Publication Number | Publication Date |
|---|---|
| CN101224935A true CN101224935A (en) | 2008-07-23 |
Family
ID=39857176
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100729647A Pending CN101224935A (en) | 2007-01-15 | 2007-01-15 | Method for treating landfill leachate |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219328A (en) * | 2010-04-16 | 2011-10-19 | 中国科学院生态环境研究中心 | Photoelectric integrated reactor capable of deeply treating garbage leachate |
| CN102295387A (en) * | 2011-07-27 | 2011-12-28 | 上海复旦水务工程技术有限公司 | Device and method for processing high-density landfill leachate |
| CN102329057A (en) * | 2011-09-09 | 2012-01-25 | 杭州江南科学研究院有限公司 | Method for treating high concentration ammonia nitrogen landfill leachate |
| CN102557324A (en) * | 2010-12-07 | 2012-07-11 | 光大环保科技发展（北京）有限公司 | Method for treating garbage leachate |
| CN102795746A (en) * | 2012-08-24 | 2012-11-28 | 新源（中国）环境科技有限责任公司 | Treatment method for waste incineration power plant leachate and device thereof |
| CN102086075B (en) * | 2009-12-08 | 2013-02-20 | 北京机电院高技术股份有限公司 | Deep treatment process of landfill leachate |
| CN103626353A (en) * | 2012-08-23 | 2014-03-12 | 宋乾武 | Method for processing city household garbage leachate |
| CN104671613A (en) * | 2015-02-28 | 2015-06-03 | 北京科益创新环境技术有限公司 | Landfill leachate treatment technology |
| CN105502815A (en) * | 2015-12-10 | 2016-04-20 | 南京国能环保工程有限公司 | Treatment method of sludge drying condensate water |
| CN111762791A (en) * | 2020-05-21 | 2020-10-13 | 北京市城市管理研究院 | Method for preparing flocculating agent by utilizing furnace slag and application thereof |
| CN111977909A (en) * | 2020-08-22 | 2020-11-24 | 杭州乾景环保工程有限公司 | Leachate denitrification device for garbage transfer station and use method |
-
2007
- 2007-01-15 CN CNA2007100729647A patent/CN101224935A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086075B (en) * | 2009-12-08 | 2013-02-20 | 北京机电院高技术股份有限公司 | Deep treatment process of landfill leachate |
| CN102219328A (en) * | 2010-04-16 | 2011-10-19 | 中国科学院生态环境研究中心 | Photoelectric integrated reactor capable of deeply treating garbage leachate |
| CN102557324A (en) * | 2010-12-07 | 2012-07-11 | 光大环保科技发展（北京）有限公司 | Method for treating garbage leachate |
| CN102295387A (en) * | 2011-07-27 | 2011-12-28 | 上海复旦水务工程技术有限公司 | Device and method for processing high-density landfill leachate |
| CN102329057A (en) * | 2011-09-09 | 2012-01-25 | 杭州江南科学研究院有限公司 | Method for treating high concentration ammonia nitrogen landfill leachate |
| CN103626353A (en) * | 2012-08-23 | 2014-03-12 | 宋乾武 | Method for processing city household garbage leachate |
| CN102795746A (en) * | 2012-08-24 | 2012-11-28 | 新源（中国）环境科技有限责任公司 | Treatment method for waste incineration power plant leachate and device thereof |
| CN102795746B (en) * | 2012-08-24 | 2014-10-22 | 新源（中国）环境科技有限责任公司 | Treatment method for waste incineration power plant leachate and device thereof |
| CN104671613A (en) * | 2015-02-28 | 2015-06-03 | 北京科益创新环境技术有限公司 | Landfill leachate treatment technology |
| CN105502815A (en) * | 2015-12-10 | 2016-04-20 | 南京国能环保工程有限公司 | Treatment method of sludge drying condensate water |
| CN105502815B (en) * | 2015-12-10 | 2018-10-12 | 南京国能环保工程有限公司 | A kind of sludge drying condensation method for treating water |
| CN111762791A (en) * | 2020-05-21 | 2020-10-13 | 北京市城市管理研究院 | Method for preparing flocculating agent by utilizing furnace slag and application thereof |
| CN111977909A (en) * | 2020-08-22 | 2020-11-24 | 杭州乾景环保工程有限公司 | Leachate denitrification device for garbage transfer station and use method |
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Effective date of registration: 20081212 Address after: Guangdong city of Shenzhen province Futian District Fuhua Road No. 88 Shenzhen business center building room 1301 post encoding: 518000 Applicant after: Guangda environmental protection engineering technology (Shenzhen) Co., Ltd. Co-applicant after: Guangda Environmental Protection Technology Development (Beijing) Co., Ltd. Address before: Guangdong city of Shenzhen province Futian District Fuhua Road No. 88 Shenzhen business center building room 1301 post encoding: 518000 Applicant before: Guangda Environmental Protection Engineering Technology (Shenzhen) Co., Ltd. |
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Open date: 20080723 |