CN110576020A - Method for remedying soil pollution of refuse landfill - Google Patents
Method for remedying soil pollution of refuse landfill Download PDFInfo
- Publication number
- CN110576020A CN110576020A CN201910785426.5A CN201910785426A CN110576020A CN 110576020 A CN110576020 A CN 110576020A CN 201910785426 A CN201910785426 A CN 201910785426A CN 110576020 A CN110576020 A CN 110576020A
- Authority
- CN
- China
- Prior art keywords
- garbage
- landfill
- ceiling
- refuse
- water
- 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 21
- 238000003900 soil pollution Methods 0.000 title claims abstract description 14
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 62
- 239000007789 gas Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000015556 catabolic process Effects 0.000 claims abstract description 11
- 238000006731 degradation reaction Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000004080 punching Methods 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000006065 biodegradation reaction Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract 1
- 238000005067 remediation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
the invention discloses a method for remedying soil pollution of a refuse landfill, which specifically comprises the following steps: step one, arranging a ceiling outside the garbage stack, arranging peripheral wall bodies around the ceiling, uniformly punching holes around the bottom of the peripheral wall bodies to enable the distance between the holes to be 1.5-2 m, and communicating a plurality of air guide pipes with the outer surface of the top of the ceiling; step two, forcibly ventilating and oxygen-transferring the interior of the ceiling, filling a fresh garbage layer with water, realizing rapid degradation of the garbage, collecting the generated gas by the gas guide pipe, and after degradation, expelling the water in the garbage layer to collect the water through the hole; the invention relates to the technical field of refuse landfills. According to the method for restoring the soil pollution of the refuse landfill, the refuse is subjected to forced ventilation and oxygen delivery twice, so that the rapid degradation of the refuse is greatly improved, the discharge intensity of leachate and landfill gas is reduced, and harm and secondary pollution are reduced.
Description
Technical Field
the invention relates to the technical field of refuse landfills, in particular to a method for remedying the soil pollution of a refuse landfill.
Background
The refuse landfill is a refuse centralized stacking site adopting a sanitary landfill mode, and the refuse sanitary landfill is widely applied in China due to low cost and good sanitary degree. The largest domestic refuse landfill is the Guangzhou Xingfeng refuse landfill, and the daily treatment of domestic refuse is about 7000 tons. Landfill is carried out in two ways, dumping-digging an open pit above the ground, burying the landfill in the pit, clustering various animals around the pit-building elaborate facilities underground or on the ground to isolate the landfill from the surrounding environment. This isolation is achieved by the bottom lining and daily soil coverage. Sanitary landfill-municipal solid waste landfill separated from the environment by a clay liner-landfill separated from the environment by a synthetic (plastic) liner, the purpose of which is to bury the landfill, isolated from ground water, kept dry and not in contact with air. Under such conditions, the waste is not largely decomposed. Landfills differ from compost heaps in that the purpose of the latter is to allow the buried waste to be rapidly broken down and folded.
The existing landfill pollution remediation has low treatment efficiency, a lot of harmful gases and waste water can grow during garbage treatment and are discharged to the nature, certain pollution is caused to the environment, the landfill soil pollution treatment is not thorough, and the treated soil still contains a lot of harmful substances.
disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for remedying the soil pollution of the refuse landfill, which solves the problems that the treatment efficiency of the existing refuse landfill pollution remediation is low, a lot of harmful gases and waste water can grow during refuse treatment and are discharged into the nature, certain pollution is caused to the environment, the soil pollution treatment of the refuse landfill is not thorough, and the treated soil still has a lot of harmful substances.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for remedying the soil pollution of a refuse landfill specifically comprises the following steps:
step one, arranging a ceiling outside the garbage stack, arranging peripheral wall bodies around the ceiling, uniformly punching holes around the bottom of the peripheral wall bodies to enable the distance between the holes to be 1.5-2 m, and communicating a plurality of air guide pipes with the outer surface of the top of the ceiling;
Step two, forcibly ventilating and oxygen-transferring the interior of the ceiling, filling a fresh garbage layer with water, realizing rapid degradation of the garbage, collecting the generated gas by the gas guide pipe, and after degradation, expelling the water in the garbage layer to collect the water through the hole;
Step three, respectively purifying the collected harmful gas and sewage;
step four, pouring the garbage into a screening machine through the matching between the conveying system and the feeding system, separating the garbage through a screen by the screening machine, recycling fine particle dregs, recycling large particle garbage, conveying the garbage meeting the requirement of backfill soil to a garbage disposal site for landfill, and conveying the garbage to a terminal garbage disposal facility for incineration;
Step five, after the garbage is conveyed to a garbage landfill, injecting air and liquid into the garbage landfill again, and reacting oxygen in the air and water in the liquid with degradable organic components and soluble inorganic components in the household garbage;
and sixthly, realizing landfill.
Preferably, the fourth step is to preferably screen and burn the garbage with higher heat value, so as to avoid potential safety hazard.
Preferably, the mixed liquid in the fourth step and the fifth step is re-filled into a landfill site in the reaction process, the physical and chemical conditions in the landfill site are changed, and an environment conforming to the growth of aerobic microorganisms is created, so that the biodegradation and stabilization rate of the garbage is greatly increased, the discharge intensity of leachate and landfill gas is reduced, and harm and secondary pollution are reduced.
The invention provides a method for remedying the soil pollution of a refuse landfill. The method has the following beneficial effects: the method specifically comprises the following steps: step one, arranging a ceiling outside the garbage stack, arranging peripheral wall bodies around the ceiling, uniformly punching holes around the bottom of the peripheral wall bodies to enable the distance between the holes to be 1.5-2 m, and communicating a plurality of air guide pipes with the outer surface of the top of the ceiling; and step two, forcibly ventilating and oxygen-transferring the interior of the ceiling, filling a fresh garbage layer with water, realizing the rapid degradation of the garbage, collecting the generated gas by the air duct, after the degradation is finished, expelling the water in the garbage layer, and collecting the water through the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
the embodiment of the present invention provides a technical solution: a method for remedying the soil pollution of a refuse landfill specifically comprises the following steps:
step one, arranging a ceiling outside the garbage stack, arranging peripheral wall bodies around the ceiling, uniformly punching holes around the bottom of the peripheral wall bodies to enable the distance between the holes to be 1.5-2 m, and communicating a plurality of air guide pipes with the outer surface of the top of the ceiling;
Step two, forcibly ventilating and oxygen-transferring the interior of the ceiling, filling a fresh garbage layer with water, realizing rapid degradation of the garbage, collecting the generated gas by the gas guide pipe, and after degradation, expelling the water in the garbage layer to collect the water through the hole;
Step three, respectively purifying the collected harmful gas and sewage;
step four, pouring the garbage into a screening machine through the matching between the conveying system and the feeding system, separating the garbage through a screen by the screening machine, recycling fine particle dregs, recycling large particle garbage, conveying the garbage meeting the requirement of backfill soil to a garbage disposal site for landfill, and conveying the garbage to a terminal garbage disposal facility for incineration;
Step five, after the garbage is conveyed to a garbage landfill, injecting air and liquid into the garbage landfill again, and reacting oxygen in the air and water in the liquid with degradable organic components and soluble inorganic components in the household garbage;
And sixthly, realizing landfill.
In the fourth step of the invention, the screening and burning treatment is preferably carried out on the garbage with higher heat value, so as to avoid causing potential safety hazard, and the mixed liquid in the fifth step is recharged into the garbage landfill in the reaction process, so that the physical and chemical conditions in the landfill are changed, and the environment conforming to the growth of aerobic microorganisms is created, thereby greatly accelerating the biodegradation and stabilization rate of the garbage, simultaneously reducing the discharge intensity of leachate and landfill gas, and reducing harm and secondary pollution.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. a method for remedying the soil pollution of a refuse landfill is characterized by comprising the following steps: the method specifically comprises the following steps:
step one, arranging a ceiling outside the garbage stack, arranging peripheral wall bodies around the ceiling, uniformly punching holes around the bottom of the peripheral wall bodies to enable the distance between the holes to be 1.5-2 m, and communicating a plurality of air guide pipes with the outer surface of the top of the ceiling;
Step two, forcibly ventilating and oxygen-transferring the interior of the ceiling, filling a fresh garbage layer with water, realizing rapid degradation of the garbage, collecting the generated gas by the gas guide pipe, and after degradation, expelling the water in the garbage layer to collect the water through the hole;
Step three, respectively purifying the collected harmful gas and sewage;
step four, pouring the garbage into a screening machine through the matching between the conveying system and the feeding system, separating the garbage through a screen by the screening machine, recycling fine particle dregs, recycling large particle garbage, conveying the garbage meeting the requirement of backfill soil to a garbage disposal site for landfill, and conveying the garbage to a terminal garbage disposal facility for incineration;
step five, after the garbage is conveyed to a garbage landfill, injecting air and liquid into the garbage landfill again, and reacting oxygen in the air and water in the liquid with degradable organic components and soluble inorganic components in the household garbage;
And sixthly, realizing landfill.
2. the method for remediating the soil pollution of the refuse landfill according to claim 1, wherein the method comprises the following steps: and step four, preferably screening and incinerating the garbage with higher heat value, so as to avoid potential safety hazards.
3. The method for remediating the soil pollution of the refuse landfill according to claim 1, wherein the method comprises the following steps: and D, recharging the mixed liquid in the step V into the landfill in the reaction process, changing the physical and chemical conditions in the landfill, and creating an environment conforming to the growth of aerobic microorganisms, so that the biodegradation and stabilization rate of the garbage are greatly increased, the discharge intensity of leachate and landfill gas is reduced, and harm and secondary pollution are reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785426.5A CN110576020A (en) | 2019-08-23 | 2019-08-23 | Method for remedying soil pollution of refuse landfill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785426.5A CN110576020A (en) | 2019-08-23 | 2019-08-23 | Method for remedying soil pollution of refuse landfill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110576020A true CN110576020A (en) | 2019-12-17 |
Family
ID=68811935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910785426.5A Pending CN110576020A (en) | 2019-08-23 | 2019-08-23 | Method for remedying soil pollution of refuse landfill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110576020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113926823A (en) * | 2021-10-13 | 2022-01-14 | 捷艾悉环保科技（上海）有限公司 | Intelligent environment-friendly landfill system and construction process and operation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286140A (en) * | 1992-12-17 | 1994-02-15 | Petro Environmental Technologies, Inc. | Bioremediation systems and methods |
| CN101125337A (en) * | 2007-09-13 | 2008-02-20 | 浙江大学 | Two-step city life garbage burying treatment system and method thereof |
| CN104668271A (en) * | 2015-01-30 | 2015-06-03 | 湖南大学 | Method for promoting rapid stabilization of landfills |
| CN107876539A (en) * | 2017-10-17 | 2018-04-06 | 南京中电环保工程有限公司 | The aerobic Ecosystem restoration system of refuse landfill and method |
| CN109500043A (en) * | 2018-11-27 | 2019-03-22 | 北京国环清华环境工程设计研究院有限公司 | A kind of quasi- aerobic ecological restoring method of refuse landfill and system |
| CN109759416A (en) * | 2018-05-21 | 2019-05-17 | 光大环境修复(江苏)有限公司 | A kind of integrated conduct method of house refuse |
-
2019
- 2019-08-23 CN CN201910785426.5A patent/CN110576020A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286140A (en) * | 1992-12-17 | 1994-02-15 | Petro Environmental Technologies, Inc. | Bioremediation systems and methods |
| CN101125337A (en) * | 2007-09-13 | 2008-02-20 | 浙江大学 | Two-step city life garbage burying treatment system and method thereof |
| CN104668271A (en) * | 2015-01-30 | 2015-06-03 | 湖南大学 | Method for promoting rapid stabilization of landfills |
| CN107876539A (en) * | 2017-10-17 | 2018-04-06 | 南京中电环保工程有限公司 | The aerobic Ecosystem restoration system of refuse landfill and method |
| CN109759416A (en) * | 2018-05-21 | 2019-05-17 | 光大环境修复(江苏)有限公司 | A kind of integrated conduct method of house refuse |
| CN109500043A (en) * | 2018-11-27 | 2019-03-22 | 北京国环清华环境工程设计研究院有限公司 | A kind of quasi- aerobic ecological restoring method of refuse landfill and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113926823A (en) * | 2021-10-13 | 2022-01-14 | 捷艾悉环保科技（上海）有限公司 | Intelligent environment-friendly landfill system and construction process and operation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191217 |
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| RJ01 | Rejection of invention patent application after publication |