CN1422815A - Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization - Google Patents
Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization Download PDFInfo
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- CN1422815A CN1422815A CN01132394A CN01132394A CN1422815A CN 1422815 A CN1422815 A CN 1422815A CN 01132394 A CN01132394 A CN 01132394A CN 01132394 A CN01132394 A CN 01132394A CN 1422815 A CN1422815 A CN 1422815A
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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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- 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
- Y02W10/20—Sludge processing
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Abstract
The invention is a processing technique able to purify percolation water and speed up stabilization of living garbage, referring to fill-bury processing method of municipal living garbage. The technique: firstly make biological aerobe pretreatment on percolation water, then circulate to the fill-bury layer to make inner-layer circulation. Make aerobic bio-treatment again on the discharged percolation water, then recharge to covering layer and then carry out surface recharge to reach evaporation/transpiration reduction.
Description
Technical field
The present invention relates to domestic waste landfill disposal method, specifically is to make the landfill waste bio-stabilization by the method that loading embeading percolation water recharges processing, reaches the purpose that shortens the landfill domestic refuse stabilization time and purify water from diffusion.
Background technology
The domestic waste landfill is most widely used refuse treatment disposal technology, and this technology uses about 90% in China; Developed country is greater than 60%.The essential characteristic of landfill is sealing, and it is the basic fundamental measure of landfill that fluid-tight lower pad and fluid-tight substantially top cover, so claim that this technology is a Sanitary Landfill Technology.In the landfill waste layer, because organic itself the biological metabolizability of the existence of microorganism and rubbish has determined to exist bio-metabolic process, metabolic process is produced the generation source that rainwash that water and part infiltrate the landfill layer has constituted water from diffusion jointly.Water from diffusion is an organic contamination degree height, the water pollution source that intractability is very big.In addition, the sealing measure of adopting worsens the biological metabolism envrionment conditions in the landfill layer: as the unidirectional discharge owing to water, make the water ratio of landfill layer low excessively, the bio-stabilization cycle of landfill waste is extremely grown (above 40 years), even after may extending to sealing measure inefficacy, still can discharge pollutent again, the harm environment.Above-mentioned unmanageable water from diffusion and rubbish that for a long time can not be stable are the main aspects that present landfill technology is left to be desired.
At present, faced problem by solving above-mentioned landfill technology, general employing is strengthened the biological metabolism effect that utilizes in the landfill layer and is reached acceleration landfill waste stabilization purpose, and main direction has two kinds.
A kind of method is the disclosed reinforcement landfill Biostatic metallization processes of United States Patent (USP) U.S.Patent No.5564862 (Method of Improved LandfillMining), its principle is to import air in the landfill layer, make the landfill layer occur aerobic biological metabolism condition to some extent, because the speed of aerobic metabolic process is higher, utilize the organic matter of aerobic or facultative biological activity metabolism rubbish, make stabilization period be expected to foreshorten to the level in 5～10 years.Existence owing to facultative and good oxygen metabolism district simultaneously also can more effectively purify the hardly degraded organic substance (COD) that recharges in the water from diffusion, more can be by nitrated/denitrification process removal NH wherein
3-N.This technology imports air and can adopt: one, bottom level drainage pipe system is communicated with vertical airway in the layer, utilizes the wind-drawing effect of vertical tube to realize; Two, level or vertically lay special-purpose pipe network in layer, the art end connects gas blower, forces to carry in layer air.The subject matter of this type of technology has three aspects: first aspect, the gas noenergy utility value that layer intracellular metabolite produces; Second aspect is pulled out the discharge gas of wind type ventilation naturally and can't effectively be collected, and gas contains odor causing substance harm atmospheric environment; The third aspect, though the possible centralized collection of the discharge gas of forced air supply type, deodorization processing cost height, technical difficulty is big.Therefore aforesaid method only is applicable to medium and small refuse landfill.
Second method is that effusive water from diffusion in the landfill layer is recharged (circulation) to the landfill layer, to improve to the vital water ratio condition of landfill layer intracellular metabolite process, recharge the local inhomogeneous situation that also has buffering landfill layer intracellular metabolite (as local acidifying etc.) simultaneously, make the more isostatic effect of layer intracellular metabolite.U.S.EPA Seminar Publication:Landfill Bioreactor Design and Operation, Wilmington DE, 1995, systematically introduced in the U.S., Britain, Canada, Sweden and Japan, this type of technical study of carrying out and the situation of productive-scale test, explanation is Mierocrystalline cellulose in developed country's domestic refuse, under the high condition of hemicellulose and content of lignin, this kind technology can improve the methane generation of landfill layer, reduce the COD content of water from diffusion (after recharging), the expection landfill waste can reach stabilization stabilization period＞40 of landfill waste (general year) the cycle in 15～20 years, promptly show as: landfill layer settlement stability, the organism of rubbish leach liquor and mineral ion pollute the level near general water quality.But this technology still exists following two problems: one, recharge NH in the water from diffusion tail water of back
3-N concentration has accumulation rising phenomenon, and post-processing difficulty is bigger; Two, developing country is prone to the acid hydrolysis advantage of landfill layer integral body based on the rubbish of carbohydrate after recharging, and the water from diffusion organic contamination can't reduce, and methane produces and is suppressed.
Summary of the invention
The object of the present invention is to provide a kind of new domestic waste landfill process, it can purify the pollution of water from diffusion effectively, reduces the final diafiltration water yield of discharging landfill yard, can quicken the stabilization procedures of landfill waste simultaneously.
To achieve these goals, the present invention is performed such: at first, carry out the collection of water from diffusion, then, the water from diffusion of collecting is carried out the aerobe pre-treatment, recharge then to the landfill waste layer, and carry out interior loop; After interior loop is carried out 3-7 days, the water from diffusion of discharging after the interior loop again after the aerobe pre-treatment, is recharged to tectum, carry out the top layer and recharge; Through interior loop, surface recharge and corresponding circulated backfilling before the pretreated residue water from diffusion of aerobe, go municipal wastewater treatment plant or on-the-spot materialization to handle, final purification is up to standard.
The water from diffusion that produces in the above-mentioned landfill layer is collected to go forward side by side and is acted charitably after the oxygen Biological Pretreatment, and organic matter wherein obtains degraded to a certain degree, NH
3-N quilt is partly nitrated to be NO
2 -Or NO
3 -With pretreated water from diffusion by interior loop (recharging) to the landfill layer, make with it in the garbage loading embeading layer of contact therefore organic facultative good oxygen metabolism and NO take place
2 -Or NO
3 -Denitrification denitrogenation, therefore this layer is known as facultative layer.NO
2 -Or NO
3 -Fully behind the denitrification, the water from diffusion landfill waste layer that continues to flow through can improve layer interior water content thus and make and produces macroscopical current in the layer and play effects such as buffering inhibition concentration, the anaerobic metabolism (methanation) of organic matter in promotion rubbish and the water from diffusion.This technological process by pre-treatment before the water from diffusion circulated backfilling (aerobe) and landfill layer internal recycle (recharging) constitute can make organism and NH in the water from diffusion
3-N pollutent obtains the most effective biopurification via aerobic → facultative → anaerobism → aerobic circulating biological process; Simultaneously, in the landfill layer rubbish also therefore and through being quickened stabilization by facultative or anaerobe metabolic process.So make water from diffusion in landfill layer interior loop, also strengthened the facultative/anaerobism stabilization of landfill waste simultaneously.The water from diffusion that discharge the circulation back after aerobe is handled, recharges to tectum, so that evaporation/rising decrement again.
The present invention has following advantage:
1. the collection of water from diffusion, pre-treatment, the circulation of recharging composition, in the garbage loading embeading layer, formed aerobic → facultative → anaerobism → aerobic circulating biological treating processes, purify organic pollutant contained in the landfill waste (comprising biological component) so can maximally utilise bioprocess than difficult degradation, create the condition of biological nitration/denitrification denitrogenation simultaneously, the present invention can be reached both purified unmanageable water from diffusion, quickened the purpose of waste stabilisation again.
2. recharge the interior loop that the landfill layer forms after the pre-treatment of water from diffusion aerobe, can make the local facultative biological metabolism condition of organism that produces of landfill layer, optimize overall anaerobic metabolism envrionment conditions simultaneously, therefore quickened the bio-stabilization process of landfill waste.
3. because the facultative/anaerobe stabilization procedures of landfill layer rubbish can discharge enough carbon sources, satisfy NH in the water from diffusion
3The carbon source demand of the nitrated back denitrification denitrogenation of-N; The acid hydrolysis biological metabolism at initial stage in the landfill layer can be effectively controlled in the aerobe pre-treatment before the water from diffusion circulated backfilling, has reduced the disadvantageous effect that the water from diffusion organic concentration is raise; The pretreated interior loop of aerobe before the water from diffusion circulated backfilling, can further develop by acid hydrolysis is metabolic in the facultative metabolism key-course again, make the present invention be particularly suitable for handling the carbohydrate component ratio height of the under-developed country as China, the easily domestic rubbish disposal of acidification hydrolization
4. the present invention can guarantee that the atmospheric environment of landfill yard is not subjected to serious foul smell and bioaerosol harm when effectively utilization is recharged, handled the water from diffusion pollution and quickens waste stabilisation.
5. the present invention utilizes the landfill layer as the unit of handling water from diffusion, and its processing cost is expected to be starkly lower than the various treatment process of water from diffusion outside the venue; The acceleration stabilization of landfill waste with the management cycle that obviously shortens after landfill yard closes, is saved spending accordingly.Therefore the present invention has the effect of tangible saving domestic rubbish disposal Financial cost.
Description of drawings
Fig. 1 is a process flow sheet of the present invention
Fig. 2 is a process implementing synoptic diagram of the present invention
Embodiment
Below in conjunction with accompanying drawing, technological process of the present invention is elaborated.
In the typical landfill structure of forming by garbage loading embeading layer and tectum (vegetable layer), by rising and the interior loop cloth ditch 16 of layering setting with the landfill step in the landfill layer, the water distribution perforated tube is housed in the cloth ditch 16 evenly infiltrates the landfill layer, enter the row's infiltration layer 2 above the impervious barrier 1 that landfill layer bottom be provided with at last to guarantee water from diffusion.Water from diffusion is collected by the collection tube of arranging in row's infiltration layer 2.Water from diffusion after the collection enters water from diffusion storage pond 4, and two padding aeration districts 5,6 are arranged in the storage pond 4; After promoting by pump 7 through the water from diffusion in a padding aeration district 6,, send into landfill layer 12, and in landfill layer 12, carry out interior loop through cloth pond 9.After the water from diffusion in another padding aeration district 5 of process is promoted by pump 8, be fed in the inferior surperficial cloth tank 13 that is provided with in the intermediate cover layer 14 of arranging on the landfill step through cloth pond 10, or inferior surperficial cloth tank 13 water distributions that are provided with in the final tectum infiltrate in the overlying soil, finish the top layer and recharge, make water from diffusion evaporation/rising decrement.
Working routine of the present invention is as follows:
A) water from diffusion is collected by row's infiltration layer 2 on impervious barrier 1 top and collection tube wherein;
B) water from diffusion after the collection enters water from diffusion storage pond 4, and two padding aeration districts 5,6 are arranged in the storage pond, carries out aeration by gas blower 3;
C) promote by pump 7 through the water from diffusion in a padding aeration district 6 after, through cloth pond 9,, in landfill layer 12, circulate by infratectal interior loop cloth ditch 15;
D) after the water from diffusion in another padding aeration district 5 of process was promoted by pump 8, in cover surface, by the surperficial cloth tank 13 in Asia, water distribution infiltrated in the overlying soil, via evaporation/rising decrement through cloth pond 10;
E) each landfill step is equipped with interior loop cloth ditch 15 and inferior surperficial cloth tank 13, and when the middle coverage rate of a step on it progressively covers this step, the water distribution system of this step will progressively be abrogated;
F) after the landfill step rises to specified landfill elevation, middle covering will be replaced by final tectum 11, identical in interior loop cloth ditch 15 that the inferior surperficial cloth tank 13 that wherein will be provided with and its are provided with down and the middle covering.
When g) this landfill process is implemented, need the gas guide of configuration, antiseepage to do identical requirement with general sanitary landfill.
In a word, the water from diffusion scavenging process of technology formation of the present invention is: aerobic → facultative → anaerobism → aerobic → evaporation/rising decrement or materialization are handled.The landfill waste stabilization procedures is facultatively to combine with anaerobic digestion.
Claims (4)
1. can purify the burying treatment process of water from diffusion, acceleration domestic refuse stabilization, it is characterized in that:
At first, carry out the collection of water from diffusion; Then, the water from diffusion of collecting is carried out the aerobe pre-treatment, recharge then to the landfill waste layer, carry out interior loop; After interior loop is carried out 3-7 days, the water from diffusion of discharging after the interior loop again after the aerobe pre-treatment, is recharged to tectum, carry out the top layer and recharge; Water from diffusion be will remain at last and municipal wastewater treatment plant or on-the-spot materialization processing, final purification qualified discharge sent to.
2. technology according to claim 1, it is characterized in that, described water from diffusion carries out the aerobe pre-treatment, can adopt the padding aeration method, and two padding aeration districts (4) are recharged on interior loop and the top layer that aeration can be provided with in storage pond (3), carry out (5).
3. technology according to claim 1, it is characterized in that, described interior loop is: the water from diffusion that carries out aerobic pretreatment through padding aeration district (6), after pump (7) lifting, through cloth pond (9), arrive the interior loop cloth ditch (16) that the landfill tectum has, in landfill layer (12), circulate.
4. technology according to claim 1, it is characterized in that, described top layer is recharged and can is: after the water from diffusion in another padding aeration district (5) of process is promoted by pump (8), in cloth pond (10) arrive the inferior surperficial cloth tank (13) that is arranged in the tectum, carrying out water distribution infiltrates in the overlying soil, through evaporation/transpiration, make the water from diffusion decrement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011323949A CN1227163C (en) | 2001-12-03 | 2001-12-03 | Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011323949A CN1227163C (en) | 2001-12-03 | 2001-12-03 | Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1422815A true CN1422815A (en) | 2003-06-11 |
| CN1227163C CN1227163C (en) | 2005-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011323949A Expired - Lifetime CN1227163C (en) | 2001-12-03 | 2001-12-03 | Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization |
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| CN (1) | CN1227163C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329318C (en) * | 2005-09-14 | 2007-08-01 | 北京天地人环保科技有限公司 | Method for disposing refuse leachate of domestic refuse landfill |
| CN100340490C (en) * | 2004-12-15 | 2007-10-03 | 深圳相控科技有限公司 | Method and system for self purification of penetrated liquid from garbage buried site by recirculation |
| CN100531942C (en) * | 2004-02-04 | 2009-08-26 | 同济大学 | On-spot treatment method for leachate of landfill field |
| CN101015832B (en) * | 2007-03-05 | 2010-05-19 | 清华大学 | Denitrification facultative type domestic refuse bioreactor landfill and leachate recirculation process |
| CN101875529A (en) * | 2010-06-23 | 2010-11-03 | 华侨大学 | Sludge dewatering and landfill integrated device for sewage treatment plant |
| CN101182250B (en) * | 2007-11-07 | 2011-03-16 | 浙江大学 | Domestic refuse resource treatment technology and apparatus therefor |
| CN102390881A (en) * | 2011-09-13 | 2012-03-28 | 北京高能时代环境技术股份有限公司 | Recharging device for concentrated solution of refuse landfill |
| CN101717169B (en) * | 2009-12-07 | 2012-06-13 | 浙江大学 | In-situ denitrification method of percolate of domestic refuse landfill |
| CN105127174A (en) * | 2015-10-20 | 2015-12-09 | 南京大学 | Circulating sustainable domestic waste landfill site and treatment method thereof |
| CN106284429A (en) * | 2016-08-10 | 2017-01-04 | 同济大学 | One way of life cinder from refuse incineration landfill yard and good antiscale property processing method thereof |
| CN109772849A (en) * | 2019-03-13 | 2019-05-21 | 刘建伦 | A kind of household refuse landfill sites oxygen-rich treated technique |
| CN113429063A (en) * | 2021-05-28 | 2021-09-24 | 广州南大环保科技有限公司 | Landfill leachate treatment system and method |
-
2001
- 2001-12-03 CN CNB011323949A patent/CN1227163C/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100531942C (en) * | 2004-02-04 | 2009-08-26 | 同济大学 | On-spot treatment method for leachate of landfill field |
| CN100340490C (en) * | 2004-12-15 | 2007-10-03 | 深圳相控科技有限公司 | Method and system for self purification of penetrated liquid from garbage buried site by recirculation |
| CN1329318C (en) * | 2005-09-14 | 2007-08-01 | 北京天地人环保科技有限公司 | Method for disposing refuse leachate of domestic refuse landfill |
| CN101015832B (en) * | 2007-03-05 | 2010-05-19 | 清华大学 | Denitrification facultative type domestic refuse bioreactor landfill and leachate recirculation process |
| CN101182250B (en) * | 2007-11-07 | 2011-03-16 | 浙江大学 | Domestic refuse resource treatment technology and apparatus therefor |
| CN101717169B (en) * | 2009-12-07 | 2012-06-13 | 浙江大学 | In-situ denitrification method of percolate of domestic refuse landfill |
| CN101875529B (en) * | 2010-06-23 | 2012-06-27 | 华侨大学 | Sludge dewatering and landfill integrated device for sewage treatment plant |
| CN101875529A (en) * | 2010-06-23 | 2010-11-03 | 华侨大学 | Sludge dewatering and landfill integrated device for sewage treatment plant |
| CN102390881A (en) * | 2011-09-13 | 2012-03-28 | 北京高能时代环境技术股份有限公司 | Recharging device for concentrated solution of refuse landfill |
| CN105127174A (en) * | 2015-10-20 | 2015-12-09 | 南京大学 | Circulating sustainable domestic waste landfill site and treatment method thereof |
| CN106284429A (en) * | 2016-08-10 | 2017-01-04 | 同济大学 | One way of life cinder from refuse incineration landfill yard and good antiscale property processing method thereof |
| CN109772849A (en) * | 2019-03-13 | 2019-05-21 | 刘建伦 | A kind of household refuse landfill sites oxygen-rich treated technique |
| CN113429063A (en) * | 2021-05-28 | 2021-09-24 | 广州南大环保科技有限公司 | Landfill leachate treatment system and method |
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| Publication number | Publication date |
|---|---|
| CN1227163C (en) | 2005-11-16 |
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Application publication date: 20030611 Assignee: TIANJIN JIANCHANG ENVIRONMENTAL PROTECTION CO., LTD. Assignor: Tongji University Contract record no.: 2016990000071 Denomination of invention: Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization Granted publication date: 20051116 License type: Common License Record date: 20160308 |
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Granted publication date: 20051116 |