CN104259195A - Contaminated soil repair method - Google Patents
Contaminated soil repair method Download PDFInfo
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- CN104259195A CN104259195A CN201410519912.XA CN201410519912A CN104259195A CN 104259195 A CN104259195 A CN 104259195A CN 201410519912 A CN201410519912 A CN 201410519912A CN 104259195 A CN104259195 A CN 104259195A
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- contaminated soil
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Abstract
The invention discloses a contaminated soil repair method, comprising (1) intensively piling up contaminated soil: piling the dug contaminated soil, and closing the contaminated soil with a shield; (2) arranging a ventilation pipeline: embedding the ventilation pipeline in the contaminated soil pile, wherein the ventilation pipeline is communicated with a gas source; (3) supplementing a nutrient liduid: arranging a spray head at the upper part of the contaminated soil pile to spray the nutrient solution to the contaminated soil pile; and (4) arranging a drainage system: arranging a drainage pipe at the bottom of the contaminated soil pile. Diffusion of pollutants can be effectively prevented by intensively treating the contaminated soil, and the pollutants can be effectively degraded by a series of treatment measures, so that the method has a very good treatment effect and is suitable for industrial application.
Description
Technical field
The present invention relates to a kind of contaminated soil restorative procedure, belong to chemical technology field.
Background technology
At present, the organic contamination of the soil of China is very serious, and has started to manifest on the impact of agricultural product and health.Pollution sources are mainly derived from organic agricultural chemicals, chemical fertilizer and three industrial wastes, and a large amount of uses of plastic sheeting for farm use.
The Measures compare of current soil remediation is many, has physical method, chemical method, the method such as biological prosthetic, although traditional method has administered soil pollution to a certain extent, and, the problems such as still there is governance process complexity, cost is high, and regulation effect is undesirable.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide that a kind of method is simple, cost is low, the obvious contaminated soil remediation method of regulation effect.
The present invention is achieved through the following technical solutions:
A kind of contaminated soil remediation method, is characterized in that, comprise the following steps:
(1) heap contaminated soil is concentrated: after being dug out by contaminated soil, pile in heaps, outer edge is closed with blocking;
(2) breather line is arranged: bury breather line underground in the inside of contaminated soil heap, described breather line is communicated with gas source;
(3) Additional nutrient solution: arrange spray head on the top of contaminated soil heap, sprays nutrient solution, for microorganism provides suitable growth key element to contaminated soil heap;
(4) drainage system is set: drainpipe is set in the bottom of contaminated soil heap.
Further, the step that watertight composition is set in the bottom of contaminated soil heap is also included in.
The step of fertilizer and lime is added in the inside being also included in contaminated soil heap.
And the step of straw, wood chip, bark is added in the inside being also included in contaminated soil heap, is easy to degraded.
In addition, described gas source is source of oxygen.
And the temperature of contaminated soil heap is 50-60 DEG C, humidity is 60-70%, and this condition is more conducive to biodegradation.
To the invention has the beneficial effects as follows: the present invention, can the diffusion of effective preventing pollution thing by being focused on by contaminated soil, and a series for the treatment of measures, all can effective degradation of contaminant, treatment effect is very good, is suitable for commercial Application.
Detailed description of the invention
Below in conjunction with specific embodiment, describe the specific embodiment of the present invention in detail:
Embodiment 1:
Contaminated soil remediation concrete steps are:
(1) heap contaminated soil is concentrated: after being dug out by contaminated soil, pile in heaps, outer edge is closed with blocking;
(2) breather line is arranged: bury breather line underground in the inside of contaminated soil heap, described breather line is communicated with gas source, and described gas source is source of oxygen, logical oxygen in breather line;
(3) Additional nutrient solution: arrange spray head on the top of contaminated soil heap, sprays nutrient solution, for microorganism provides suitable growth key element to contaminated soil heap;
(4) arrange drainage system: arrange drainpipe in the bottom of contaminated soil heap, and arrange watertight composition in the bottom of contaminated soil heap, wherein drainpipe is arranged on watertight composition;
(5) add fertilizer, lime, straw, wood chip, bark in the inside of contaminated soil heap, above-mentioned substance belongs to inorganic and organic solid matter, is easy to degraded, promotes the degraded of the pollutant in contaminated soil further;
And in whole process, the temperature of contaminated soil heap is 50-60 DEG C, and humidity is 60-70%, and this condition is more conducive to biodegradation.
Utilize the method described in embodiment 1 to carry out repair process to the contaminated soil containing creasote, after 12 months, can decompose obtain 60% hydrocarbon, wherein, the clearance of PAHs compound reaches more than 90%, treatment effect is very good.
Below disclose the present invention with preferred embodiment, so it is not intended to limiting the invention, and all employings are equal to replacement or the technical scheme that obtains of equivalent transformation mode, all drop within protection scope of the present invention.
Claims (6)
1. a contaminated soil remediation method, is characterized in that, comprises the following steps:
(1) heap contaminated soil is concentrated: after being dug out by contaminated soil, pile in heaps, outer edge is closed with blocking;
(2) breather line is arranged: bury breather line underground in the inside of contaminated soil heap, described breather line is communicated with gas source;
(3) Additional nutrient solution: arrange spray head on the top of contaminated soil heap, sprays nutrient solution to contaminated soil heap;
(4) drainage system is set: drainpipe is set in the bottom of contaminated soil heap.
2. a kind of contaminated soil remediation method according to claim 1, is characterized in that, is also included in the step arranging watertight composition in the bottom of contaminated soil heap.
3. a kind of contaminated soil remediation method according to claim 1, is characterized in that, the step of fertilizer and lime is added in the inside being also included in contaminated soil heap.
4. a kind of contaminated soil remediation method according to claim 1 or 3, is characterized in that, the step of straw, wood chip, bark is added in the inside being also included in contaminated soil heap.
5. a kind of contaminated soil remediation method according to claim 1, is characterized in that, described gas source is source of oxygen.
6. a kind of contaminated soil remediation method according to claim 1, is characterized in that, the temperature of contaminated soil heap is 50-60 DEG C, and humidity is 60-70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519912.XA CN104259195A (en) | 2014-09-29 | 2014-09-29 | Contaminated soil repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519912.XA CN104259195A (en) | 2014-09-29 | 2014-09-29 | Contaminated soil repair method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104259195A true CN104259195A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410519912.XA Pending CN104259195A (en) | 2014-09-29 | 2014-09-29 | Contaminated soil repair method |
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| CN (1) | CN104259195A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607460A (en) * | 2015-03-02 | 2015-05-13 | 南京科盛环保技术有限公司 | Bioremediation method of organic matter contaminated soil |
| CN104607458A (en) * | 2015-01-14 | 2015-05-13 | 苏忠 | Method for restoring chemically contaminated soil through Klebsiella pneumoniae |
| CN108672491A (en) * | 2018-06-19 | 2018-10-19 | 江苏东珠景观股份有限公司 | The method for efficiently repairing heavy metal ion in wetland soil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357369A (en) * | 2008-09-26 | 2009-02-04 | 天津大学 | Heterotopia repairing system of volatile organic pollution soil and processing method thereof |
| CN103008336A (en) * | 2012-12-28 | 2013-04-03 | 南京市环境保护科学研究院 | Ex-situ bioremediation method of soil contaminated by organic matters |
| CN103639193A (en) * | 2013-12-26 | 2014-03-19 | 江苏盖亚环境工程有限公司 | Restoration method for organically polluted site soil through circular in-situ chemical oxidation |
| CN203678832U (en) * | 2013-12-25 | 2014-07-02 | 天津生态城环保有限公司 | Equipment for repairing heavy-metal-polluted soil by leaching in combination with oxidation method |
-
2014
- 2014-09-29 CN CN201410519912.XA patent/CN104259195A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357369A (en) * | 2008-09-26 | 2009-02-04 | 天津大学 | Heterotopia repairing system of volatile organic pollution soil and processing method thereof |
| CN103008336A (en) * | 2012-12-28 | 2013-04-03 | 南京市环境保护科学研究院 | Ex-situ bioremediation method of soil contaminated by organic matters |
| CN203678832U (en) * | 2013-12-25 | 2014-07-02 | 天津生态城环保有限公司 | Equipment for repairing heavy-metal-polluted soil by leaching in combination with oxidation method |
| CN103639193A (en) * | 2013-12-26 | 2014-03-19 | 江苏盖亚环境工程有限公司 | Restoration method for organically polluted site soil through circular in-situ chemical oxidation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607458A (en) * | 2015-01-14 | 2015-05-13 | 苏忠 | Method for restoring chemically contaminated soil through Klebsiella pneumoniae |
| CN104607460A (en) * | 2015-03-02 | 2015-05-13 | 南京科盛环保技术有限公司 | Bioremediation method of organic matter contaminated soil |
| CN104607460B (en) * | 2015-03-02 | 2015-10-21 | 南京科盛环保技术有限公司 | A kind of biological renovation method of organic material contaminated soil |
| CN108672491A (en) * | 2018-06-19 | 2018-10-19 | 江苏东珠景观股份有限公司 | The method for efficiently repairing heavy metal ion in wetland soil |
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Application publication date: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |