CN1449873A - Refuse burying method with percolation liquid treatment layer - Google Patents
Refuse burying method with percolation liquid treatment layer Download PDFInfo
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- CN1449873A CN1449873A CN 03119069 CN03119069A CN1449873A CN 1449873 A CN1449873 A CN 1449873A CN 03119069 CN03119069 CN 03119069 CN 03119069 A CN03119069 A CN 03119069A CN 1449873 A CN1449873 A CN 1449873A
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Abstract
The present invention discloses a garbage burying method containing percolated liquor treatment layer, and is characterized by that on the bottom impervious layer of garbage-burying yard a first broken stone or grit stratum is laid, and on the first broken stone or grit stratum the second broken stone or grit stratum in which the percolated liquor collecting pipe is mounted is laid, and between the first broken stone or grit stratum and second broken stone or grit stratum an iron-carbon layer consisting of cast iron and active carbon is laid, the ratio of cast iron and active carbon is 1:0.5-2.5, perfectly is 1:1, and the thickness of iron-carbon layer is 50-250 mm, so that the electrochemical action of the iron-carbon original cell can make the harmful substance being in percolated liquor passed through the iron-carbon layer be greatly reduced.
Description
Technical field:
The present invention relates to field of environment protection, more specifically relate to the landfill disposal method of rubbish.
Background technology:
Nearly 1.4 hundred million tons of the house refuses that China city 2000 produces, and annual amplitude with 8% is increasing.The rubbish total amount of national unordered stacking over the years reaches 6,000,000,000 tons, has taken about 500,000,000 square metres soil.Present garbage disposal has only about 3% to meet sanitary requirement, and the overwhelming majority's rubbish adopts lining both in the air usually, does not also have leachate collection processing and landfill gas and utilizes the simple heap of facility to be filled into the row processing.This processing method does not change the severe contamination situation of rubbish to atmosphere and groundwater resources environment in fact just with waste deposit somewhere, and once causes the accident that gas that rubbish produces is blasted.Along with the raising of Chinese society expanding economy and people's living standard, also more and more higher to the urban life environment requirement, therefore, be necessary to seek new method and come garbage disposal, to satisfy the demand of people living environment.Existing waste disposal method mainly contains three kinds, the one, adopt the method for burning to handle, advantage is the heat energy that can utilize in the house refuse, its weak point is, adopt the investment of this method very big, operating cost is high, the flue gas difficult treatment, therefore, the application in China has been subjected to very big restriction; It two is to adopt the method for compost to handle, and advantage is the organic matter that can utilize in the house refuse, and problem is that the rubbish of China does not have categorised collection mostly and deposits, and causes the quality of composting production low, is difficult to popularization; The third is to adopt the method for sanitary landfills to handle, because this processing method technology is simple, small investment, operation and administrative expenses are low, will be the main method of China's garbage disposal in considerable time from now on therefore.
Existing garbage sanitary filling method is: lay impervious barrier in the refuse landfill bottom, laying metalling or pipeline are used to collect percolate on impervious barrier, and the percolate of reception enters percolate treating apparatus or backflow device by pipeline.Be the dumping layer on the metalling, rubbish is settled collecting methane pipeline and leachate recirculation pipeline according to design in stacking process.Wherein the collecting methane pipeline connects the biogas treating apparatus, and the leachate recirculation pipeline is communicated with the leachate recirculation device.Dumping layer top adds confining bed.
The weak point of above-mentioned garbage loading embeading processing mode is: the method that 1, does not contain backflow device has just been collected percolate, does not carry out any processing.This method needs huge reprocessing facility, not only expends very greatly, and operating cost is bigger.2, adopt the method for the measure of recharging effectively to utilize living resources a large amount of in the landfill waste, effectively reach percolate and handle purposes such as waste reduction.But because rubbish wide material sources complicated component, wherein heavy metal ion becomes branch to destroy greatly down to the activation of microorganism that eliminates fully in the landfill waste.This also is the reason that poor effect is recharged in old landfill place in the general refuse landfill.
Summary of the invention:
The purpose of this invention is to provide a kind of rubbish and flowed or blow over and cover completely method with percolate processing capacity.This method is to flow or blow over and cover completely between a bottom impervious barrier and the garbage bury layer at rubbish to add the iron carbon-coating in the middle of the leachate collection layer, utilize the electrochemical action of iron carbon galvanic cell that percolate is handled, to reduce heavy metal ion content in the percolate, and the concentration of elimination part chemical oxygen demand cod, alleviate the soot to surrounding enviroment and phreatic pollution.
For achieving the above object, the present invention adopts following technical scheme: impervious barrier is laid ground floor rubble or grit layer in the refuse landfill bottom, lay second rubble or the grit layer of laying the leachate collection pipeline thereon, between first rubble or grit layer and second rubble or grit layer, lay the iron carbon-coating that constitutes by iron filings and active carbon, iron filings are preferably cast-iron scrap, the volume ratio of iron filings and active carbon is 1: 0.5～2.5, and the volume ratio of iron filings and active carbon is preferably 1: 1.The thickness of iron carbon-coating is 50～250 millimeters.The design of iron carbon-coating height guarantees that the iron carbon-coating is immersed in the percolate below the leachate collection pipe outlet.
Compared with prior art, the present invention has increased the iron carbon-coating between first metalling bottom the refuse landfill between first rubble or grit layer and second rubble or the grit layer and second metalling, because the electrochemical action of iron carbon galvanic cell, make and significantly reduce by the heavy metal ion in the percolate of iron carbon-coating, the soluble heavy metal ions clearance is 80～99.9%, and can reduce the concentration of chemical oxygen demand cod, percolate COD concentration clearance is 23.88～82%, alleviate the percolate difficulty of post-processing, not only be suitable for the leachate recirculation system, improve the effect of refuse landfill biochemical treatment, and be suitable for not containing the transformation of the percolate gathering system of backflow device.It is long that this method has life cycle, simple, do not account for the place in addition, and economy is characteristics easily.
Description of drawings:
Fig. 1 flows or blow over and cover completely the field structure schematic diagram for rubbish of the present invention.
Wherein: 1 is that last confining bed, 2 is that leachate recirculation pipeline, 3 is that collecting methane pipeline, 4 is that dumping layer, 5 is that second rubble or grit layer, 6 are that leachate collection pipeline, 7 is that iron carbon-coating, 8 is first rubble or grit layer, 9 is impervious barrier, 10 accept treating apparatus for biogas, and 11 is that percolate is accepted to handle or backflow device.
Fig. 2 flows or blow over and cover completely the partial cutaway schematic of field for rubbish of the present invention.
Wherein: 4 for dumping layer, 5 is that second rubble or grit layer, 6 are that leachate collection pipeline, 7 is that iron carbon-coating, 8 is first rubble or grit layer, and 9 is impervious barrier.
The specific embodiment 1:
Below in conjunction with accompanying drawing, the present invention is further illustrated:
A kind of waste landfill method that contains the percolate processing layer, this method is to flow or blow over and cover completely a bottom at rubbish to lay impervious barrier 9, on impervious barrier 9, lay rubble or grit layer 8, lay the iron carbon-coating 7 that constitutes by iron filings and active carbon thereon, iron filings are preferably cast-iron scrap, the volume ratio of iron filings and active carbon is 1: 1, and the thickness of iron carbon-coating 7 is 150 millimeters; And on this iron carbon-coating 7, lay leachate collection pipeline 6, this pipeline 6 places among rubble or the grit layer 5, avoid waste layer to stop up the leachate collection pipeline, iron carbon-coating 7 height are below leachate collection pipeline 6 outlet horizontal planes, to guarantee that iron carbon-coating 7 is immersed in the percolate, this leachate collection pipeline 6 with rubbish is set flows or blow over and cover completely the percolate on next door and accept treating apparatus 9 and be communicated with, on this rubble or grit layer 5, be dumping layer 4, at the half of dumping to setting height, lay collecting methane pipeline 3, this pipeline 3 with rubbish is set flows or blow over and cover completely the biogas on next door and accept treating apparatus 8 and be communicated with, in dumping after setting height, lay leachate recirculation pipeline 2, this pipeline is flowed or blow over and cover completely the percolate on next door and is accepted treating apparatus 9 and be communicated with rubbish is set, and adds confining bed 1 on leachate recirculation pipeline 2.This waste landfill method, the clearance of soluble heavy metal ions is 80～99.9% in the percolate, the clearance of percolate COD concentration is 23.88～82%.
The specific embodiment 2:
The volume ratio that a kind of waste landfill method that contains the percolate processing layer, this method remove cast iron and active carbon is 1: 0.5, and the thickness of iron carbon-coating 7 is outside 250 millimeters, other all identical with the specific embodiment 1.
The specific embodiment 3:
The volume ratio that a kind of waste landfill method that contains the percolate processing layer, this method remove cast iron and active carbon is 1: 2.5, and the thickness of iron carbon-coating is outside 50 millimeters, other all identical with the specific embodiment 1.
Claims (3)
1, a kind of waste landfill method that contains the percolate processing layer, this method is to flow or blow over and cover completely last first rubble or the grit layer (8) laid of bottom impervious barrier (9) of field at rubbish, lay second rubble or the grit layer (5) of laying leachate collection pipeline (6) thereon, it is characterized in that, between first rubble or grit layer (8) and second rubble or grit layer (5), lay the iron carbon-coating (7) that constitutes by iron filings and active carbon, iron carbon-coating (7) is immersed in the percolate, the volume ratio of iron filings and active carbon is 1: 0.5～2.5, and the thickness of iron carbon-coating (7) is 50～250 millimeters.
2, a kind of waste landfill method that contains the percolate processing layer according to claim 1 is characterized in that, the volume ratio of described iron filings and active carbon is 1: 1.
3, according to claim 1,2 described a kind of waste landfill methods that contain the percolate processing layer, it is characterized in that described iron filings are cast-iron scrap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119069 CN1449873A (en) | 2003-05-15 | 2003-05-15 | Refuse burying method with percolation liquid treatment layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03119069 CN1449873A (en) | 2003-05-15 | 2003-05-15 | Refuse burying method with percolation liquid treatment layer |
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| CN1449873A true CN1449873A (en) | 2003-10-22 |
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| CN 03119069 Pending CN1449873A (en) | 2003-05-15 | 2003-05-15 | Refuse burying method with percolation liquid treatment layer |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN100449066C (en) * | 2007-03-09 | 2009-01-07 | 傅仲萼 | Shunting drainage method used in treatment leachate of garbage sanitary landfill and rainwater in storeroom |
| CN100460612C (en) * | 2007-02-12 | 2009-02-11 | 傅仲萼 | Reticular blind drainage method for groundwater of sanitary landfill for disposing house refuse |
| CN100467727C (en) * | 2006-12-20 | 2009-03-11 | 中国矿业大学 | Gas and liquid collecting and drainage device for landfill garbage, and its construction process |
| CN102153241A (en) * | 2011-04-27 | 2011-08-17 | 吉林大学 | Method for carrying out in-situ remediation on polluted ground water by chemical and biological combination reaction zone |
| CN101041163B (en) * | 2006-03-24 | 2012-05-30 | 首都圈埋立地管理公社 | Landfill site capable of recycling middle covering sol and waste landfill method thereof |
| CN102776948A (en) * | 2012-08-13 | 2012-11-14 | 佛山市南海绿电再生能源有限公司 | Percolate guiding system |
| CN101612626B (en) * | 2008-06-23 | 2013-01-02 | 贵阳铝镁设计研究院有限公司 | Method for processing electrolytic residue |
| WO2016201958A1 (en) * | 2015-06-16 | 2016-12-22 | 河海大学 | Anti-seepage system of landfill for extending penetration time of leachate and manufacturing method thereof |
| CN107470315A (en) * | 2017-09-22 | 2017-12-15 | 新中天环保股份有限公司 | A kind of junk landfill yard |
| CN112028215A (en) * | 2020-09-02 | 2020-12-04 | 生态环境部环境规划院 | Method and reaction device for synchronously removing heavy metal composite pollution in underground water |
-
2003
- 2003-05-15 CN CN 03119069 patent/CN1449873A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101041163B (en) * | 2006-03-24 | 2012-05-30 | 首都圈埋立地管理公社 | Landfill site capable of recycling middle covering sol and waste landfill method thereof |
| CN100467727C (en) * | 2006-12-20 | 2009-03-11 | 中国矿业大学 | Gas and liquid collecting and drainage device for landfill garbage, and its construction process |
| CN100460612C (en) * | 2007-02-12 | 2009-02-11 | 傅仲萼 | Reticular blind drainage method for groundwater of sanitary landfill for disposing house refuse |
| CN100449066C (en) * | 2007-03-09 | 2009-01-07 | 傅仲萼 | Shunting drainage method used in treatment leachate of garbage sanitary landfill and rainwater in storeroom |
| CN101612626B (en) * | 2008-06-23 | 2013-01-02 | 贵阳铝镁设计研究院有限公司 | Method for processing electrolytic residue |
| CN102153241B (en) * | 2011-04-27 | 2013-06-19 | 吉林大学 | Method for carrying out in-situ remediation on polluted ground water by chemical and biological combination reaction zone |
| CN102153241A (en) * | 2011-04-27 | 2011-08-17 | 吉林大学 | Method for carrying out in-situ remediation on polluted ground water by chemical and biological combination reaction zone |
| CN102776948A (en) * | 2012-08-13 | 2012-11-14 | 佛山市南海绿电再生能源有限公司 | Percolate guiding system |
| CN102776948B (en) * | 2012-08-13 | 2013-09-18 | 佛山市南海绿电再生能源有限公司 | Percolate guiding system |
| WO2016201958A1 (en) * | 2015-06-16 | 2016-12-22 | 河海大学 | Anti-seepage system of landfill for extending penetration time of leachate and manufacturing method thereof |
| US10017911B2 (en) | 2015-06-16 | 2018-07-10 | Hohai University | Municipal solid waste landfill barrier system capable of prolonging breakthrough time of leachate and manufacturing method thereof |
| CN107470315A (en) * | 2017-09-22 | 2017-12-15 | 新中天环保股份有限公司 | A kind of junk landfill yard |
| CN112028215A (en) * | 2020-09-02 | 2020-12-04 | 生态环境部环境规划院 | Method and reaction device for synchronously removing heavy metal composite pollution in underground water |
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