CN105689384A - Oxidizing agent for degrading organic contaminated soil of coking plant and use method - Google Patents
Oxidizing agent for degrading organic contaminated soil of coking plant and use method Download PDFInfo
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- CN105689384A CN105689384A CN201610070280.2A CN201610070280A CN105689384A CN 105689384 A CN105689384 A CN 105689384A CN 201610070280 A CN201610070280 A CN 201610070280A CN 105689384 A CN105689384 A CN 105689384A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
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Abstract
An oxidizing agent for degrading organic contaminated soil of a coking plant comprises raw materials including, by mass percent, 20% of 33% sodium hypochlorite aqueous solutions, 55% of 20% or 60% hydrogen peroxide aqueous solutions, 5% of 10% potassium permanganate aqueous solutions and 20% of 10% ammonium persulfate aqueous solutions. A use method adopting the oxidizing agent for degrading the organic contaminated soil of the coking plant comprises following steps: firstly, the content and leaching toxicity of organic matter in the contaminated soil to be treated is detected; secondly, according to a detection result, the oxidizing agent is added; thirdly, stirring and mixing are carried out to form mixed soil; fourthly, the mixed soil is covered with a moisturizing material, and the curing time is at least 7 days; fifthly, sampling detection is carried out; and sixthly, ecological remediation is carried out. The oxidizing agent and the method aim at solving technical problems, and are used for treating the organic contaminated soil of the coking plant, wherein the oxidizing agent is convenient to configure, good in treatment effect and small in secondary pollution.
Description
Technical field
The present invention relates to environmental technology field, particularly relate to oxidant and the using method of a kind of coke-oven plant's organic polluted soil of degrading。
Background technology
In prior art, coke-oven plant's organic polluted soil processing method mainly has: physics administering method, Chemo-Therapy logos, microbial control and plant in treating method。
Physics administering method includes excavating landfill method and ventilation decontamination method。Excavating landfill method is modal physics administering method, is excavated by contaminated soil, migrates to appointed place landfill, is then filled out back by unpolluted soil。Shortcoming is that this method does not have from truly knowing pollutant, and costly。Ventilation decontamination ratio juris is in that organic hydrocarbon has higher volatility, so can by causing air to flow through contaminated soil district in IA well-digging, wherein several mouthfuls of wells are for ventilation inlet, and other wells are used for bleeding, the vacuum system bled loads onto purifier, it is to avoid secondary pollution。But this kind of method is due to Soil structure, hydrocarbon compound variable concentrations between soil particle, different component has different vapour pressures etc. extremely complex, and existing experiment can't provide the clear understanding to ventilation detergency mechanism。
Chemo-Therapy logos mainly includes chemistry burning method, chemical cleaning method and the chemistry anti-method for the treatment of of grid。Chemistry burning method is exactly high temperature incineration, makes Organic substance in soil decompose。Chemical cleaning method includes surfactant washing method, organic solvent ablution, supercritical extraction, cleans by the soil of Organic Pollution all referring to certain chemical solvent, is eluted by organic pollution from soil, thus the method removing pollutant。The chemistry anti-method for the treatment of of grid is to utilize the solid material can permeable again with relatively strong absorption or precipitation pollutant ability to remove the organic contamination in soil。The defect of Chemo-Therapy logos is exactly that expense is too high, it is also possible to cause secondary pollution and poor operability。
Microbial control mainly includes original position administering method, dystopy administering method and original position--dystopy administering method, it utilizes biological vital metabolic activity reduce the concentration of poisonous and harmful substance in environment or make it completely innoxious, so that contaminated soil environmental energy partly or completely returns to original state。Microbial treatment highlights biological utilisation when thinking control。
Plant in treating method is directly to be absorbed by plant or its secretions and enzyme remove organic pollution。But plant in treating organic pollution is relatively difficult, it is difficult to because of mesostate complex observe its conversion in plant。
The reparation medicament of the organic polluted soil used in prior art, cost is higher, not easily produces, and therefore in the urgent need to providing, a kind of cost is not high, configuration is convenient, regulation effect is good, reparation medicament that secondary pollution is few and method, with the content of harmful organic substance in soil of effectively degrading。
Summary of the invention
Technical problem solved by the invention is in that to provide oxidant and the using method of a kind of coke-oven plant's organic polluted soil of degrading, thus the problem solved in above-mentioned background technology。
Technical problem solved by the invention realizes by the following technical solutions:
A kind of oxidant of coke-oven plant's organic polluted soil of degrading, including the raw material of its mass percent following:
The aqueous sodium hypochlorite solution of 33%: 20%-30%
The aqueous hydrogen peroxide solution of 60%: 50-60%
The potassium permanganate solution of 10%: 2%-5%
The ammonium persulfate aqueous solution of 10%: 5%-22%。
After the configuration of described oxidant, room temperature preserves, and the shelf-life is 10 days, as early as possible medicament should be used contaminated site。
A kind of using method adopting above-mentioned oxidant degraded coke-oven plant organic polluted soil, comprises the steps:
(1) detecting organic content and Leaching in pending contaminated soil, need to detect containing pollution factor is benzene, aniline, phenol, benzo (a) pyrene；
(2) setting field, the coke-oven plant organic polluted soil area that need to repair as A, the degree of depth is H, the soil volume V=H × A that need to repair；
1. when H < during 1m, according to testing result, be 10-50:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at uniformly soil surface；
2. as 1m, < H is < during 4m, the soil of the H/2 degree of depth below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 10-50:1 in mass ratio with oxidant, add oxidant, with spraying machine, oxidant is sprayed on inside soil, stirs with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；The soil of ground surface H/2 to the H degree of depth, according to testing result, be 10-50:1 by organic polluted soil and oxidant in mass ratio, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
3. as 4m, < H is < during 10m, the soil of the degree of depth deducting 2m of H below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 10-50:1 in mass ratio with oxidant, add oxidant, with spraying machine by inside the sprinkling soil of oxidant, stir with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；Ground surface H deducts the degree of depth soil to the H degree of depth of 2m, according to testing result, be 10-50:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
4. work as H > 10m, the method should not be used；
(3) adopt the mode of turn over stirring or blender stirring at least to be stirred with oxidant by pending soil to mix 2 times, form mixed soil；
(4) on mixed soil, cover moisturizing material, curing time at least 7 days, allow the oxidant in mixed soil and the Organic substance reaction in organic polluted soil reaction, it is simple to fully decompose and pollute the Organic substance exceeded standard；
(5) content of organics in sample detecting mixed soil, as do not met environmental requirement, increases curing time, until testing result meets environmental requirement；
(6) soil monitoring qualified after, plant the deep turf of root system and seedling at soil surface, carry out restoration of the ecosystem。
There is advantages that
It is an object of the invention to overcome conventional art not enough, to configure conveniently, regulation effect good, oxidant and method that secondary pollution is few administer coke-oven plant's organic polluted soil。
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with specific embodiment, the present invention is expanded on further。
Embodiment 1:
A kind of oxidant of coke-oven plant's organic polluted soil of degrading, including the raw material of its mass percent following:
The aqueous sodium hypochlorite solution of 33%: 20%
The aqueous hydrogen peroxide solution of 60%: 55%
The potassium permanganate solution of 10%: 5%
The ammonium persulfate aqueous solution of 10%: 20%。
A kind of using method adopting above-mentioned oxidant degraded coke-oven plant organic polluted soil, comprises the steps:
(1) detecting organic content and Leaching in pending contaminated soil, need to detect containing pollution factor is benzene, aniline, phenol, benzo (a) pyrene；
(2) setting field, the coke-oven plant organic polluted soil area that need to repair as A, the degree of depth is H, the soil volume V=H × A that need to repair；
1. when H < during 1m, according to testing result, be 10:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at uniformly soil surface；
2. as 1m, < H is < during 4m, the soil of the H/2 degree of depth below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 10:1 in mass ratio with oxidant, add oxidant, with spraying machine, oxidant is sprayed on inside soil, stirs with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；The soil of ground surface H/2 to the H degree of depth, according to testing result, be 10:1 by organic polluted soil and oxidant in mass ratio, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
3. as 4m, < H is < during 10m, the soil of the degree of depth deducting 2m of H below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 10:1 in mass ratio with oxidant, add oxidant, with spraying machine by inside the sprinkling soil of oxidant, stir with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；Ground surface H deducts the degree of depth soil to the H degree of depth of 2m, according to testing result, be 10:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
(3) pending soil is mixed 2 times by the mode adopting stirring of turning over oxidant stirring, forms mixed soil；
(4) on mixed soil, cover moisturizing material, curing time 7 days, allow the oxidant in mixed soil and the Organic substance reaction in organic polluted soil reaction, it is simple to fully decompose and pollute the Organic substance exceeded standard；
(5) content of organics in sample detecting mixed soil, as do not met environmental requirement, increases curing time, until testing result meets environmental requirement；
(6) soil monitoring qualified after, plant the deep turf of root system and seedling at soil surface, carry out restoration of the ecosystem。
Embodiment 2:
A kind of oxidant of coke-oven plant's organic polluted soil of degrading, including the raw material of its mass percent following:
The aqueous sodium hypochlorite solution of 33%: 25%
The aqueous hydrogen peroxide solution of 60%: 50%
The potassium permanganate solution of 10%: 3%
The ammonium persulfate aqueous solution of 10%: 22%。
A kind of using method adopting above-mentioned oxidant degraded coke-oven plant organic polluted soil, comprises the steps:
(1) detecting organic content and Leaching in pending contaminated soil, need to detect containing pollution factor is benzene, aniline, phenol, benzo (a) pyrene；
(2) setting field, the coke-oven plant organic polluted soil area that need to repair as A, the degree of depth is H, the soil volume V=H × A that need to repair；
1. when H < during 1m, according to testing result, be 30:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at uniformly soil surface；
2. as 1m, < H is < during 4m, the soil of the H/2 degree of depth below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 30:1 in mass ratio with oxidant, add oxidant, with spraying machine, oxidant is sprayed on inside soil, stirs with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；The soil of ground surface H/2 to the H degree of depth, according to testing result, be 30:1 by organic polluted soil and oxidant in mass ratio, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
3. as 4m, < H is < during 10m, the soil of the degree of depth deducting 2m of H below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 30:1 in mass ratio with oxidant, add oxidant, with spraying machine by inside the sprinkling soil of oxidant, stir with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；Ground surface H deducts the degree of depth soil to the H degree of depth of 2m, according to testing result, be 30:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
(3) pending soil is mixed 3 times by the mode adopting blender stirring with oxidant stirring, forms mixed soil；
(4) on mixed soil, cover moisturizing material, curing time 8 days, allow the oxidant in mixed soil and the Organic substance reaction in organic polluted soil reaction, it is simple to fully decompose and pollute the Organic substance exceeded standard；
(5) content of organics in sample detecting mixed soil, as do not met environmental requirement, increases curing time, until testing result meets environmental requirement；
(6) soil monitoring qualified after, plant the deep turf of root system and seedling at soil surface, carry out restoration of the ecosystem。
Embodiment 3:
A kind of oxidant of coke-oven plant's organic polluted soil of degrading, including the raw material of its mass percent following:
The aqueous sodium hypochlorite solution of 33%: 30%
The aqueous hydrogen peroxide solution of 60%: 60%
The potassium permanganate solution of 10%: 2%
The ammonium persulfate aqueous solution of 10%: 8%。
A kind of using method adopting above-mentioned oxidant degraded coke-oven plant organic polluted soil, comprises the steps:
(1) detecting organic content and Leaching in pending contaminated soil, need to detect containing pollution factor is benzene, aniline, phenol, benzo (a) pyrene；
(2) setting field, the coke-oven plant organic polluted soil area that need to repair as A, the degree of depth is H, the soil volume V=H × A that need to repair；
1. when H < during 1m, according to testing result, be 50:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at uniformly soil surface；
2. as 1m, < H is < during 4m, the soil of the H/2 degree of depth below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 50:1 in mass ratio with oxidant, add oxidant, with spraying machine, oxidant is sprayed on inside soil, stirs with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；The soil of ground surface H/2 to the H degree of depth, according to testing result, be 50:1 by organic polluted soil and oxidant in mass ratio, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
3. as 4m, < H is < during 10m, the soil of the degree of depth deducting 2m of H below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 50:1 in mass ratio with oxidant, add oxidant, with spraying machine by inside the sprinkling soil of oxidant, stir with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；Ground surface H deducts the degree of depth soil to the H degree of depth of 2m, according to testing result, be 50:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
(3) pending soil is mixed 4 times by the mode adopting stirring of turning over oxidant stirring, forms mixed soil；
(4) on mixed soil, cover moisturizing material, curing time 9 days, allow the oxidant in mixed soil and the Organic substance reaction in organic polluted soil reaction, it is simple to fully decompose and pollute the Organic substance exceeded standard；
(5) content of organics in sample detecting mixed soil, as do not met environmental requirement, increases curing time, until testing result meets environmental requirement；
(6) soil monitoring qualified after, plant the deep turf of root system and seedling at soil surface, carry out restoration of the ecosystem。
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention。Claimed scope is defined by appending claims and equivalent thereof。
Claims (2)
1. degrade the oxidant of coke-oven plant's organic polluted soil, it is characterized in that: include the raw material of its mass percent following:
The aqueous sodium hypochlorite solution of 33%: 20%
The aqueous hydrogen peroxide solution of 60%: 55%
The potassium permanganate solution of 10%: 5%
The ammonium persulfate aqueous solution of 10%: 20%。
2. adopt a using method for oxidant degraded coke-oven plant organic polluted soil described in claim 1, it is characterized in that: comprise the steps:
(1) detecting organic content and Leaching in pending contaminated soil, need to detect containing pollution factor is benzene, aniline, phenol, benzo (a) pyrene；
(2) setting field, the coke-oven plant organic polluted soil area that need to repair as A, the degree of depth is H, the soil volume V=H × A that need to repair；
1. when H < during 1m, according to testing result, be 10-50:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at uniformly soil surface；
2. as 1m, < H is < during 4m, the soil of the H/2 degree of depth below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 10-50:1 in mass ratio with oxidant, add oxidant, with spraying machine, oxidant is sprayed on inside soil, stirs with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；The soil of ground surface H/2 to the H degree of depth, according to testing result, be 10-50:1 by organic polluted soil and oxidant in mass ratio, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
3. as 4m, < H is < during 10m, the soil of the degree of depth deducting 2m of H below ground surface is excavated, then according to testing result, to excavate organic polluted soil is 10-50:1 in mass ratio with oxidant, add oxidant, with spraying machine by inside the sprinkling soil of oxidant, stir with blender, carrying out when measuring big, every crowd of contaminated soil V is not more than 20m in batches3；Ground surface H deducts the degree of depth soil to the H degree of depth of 2m, according to testing result, be 10-50:1 in mass ratio by organic polluted soil and oxidant, interpolation oxidant, with spraying machine, oxidant is sprayed at soil surface uniformly；
4. work as H > 10M, the method should not be used；
(3) adopt the mode of turn over stirring or blender stirring at least to be stirred with oxidant by pending soil to mix 2 times, form mixed soil；
(4) on mixed soil, cover moisturizing material, curing time at least 7 days, allow the oxidant in mixed soil and the Organic substance reaction in organic polluted soil reaction, it is simple to fully decompose and pollute the Organic substance exceeded standard；
(5) content of organics in sample detecting mixed soil, as do not met environmental requirement, increases curing time, until testing result meets environmental requirement；
(6) soil monitoring qualified after, plant the deep turf of root system and seedling at soil surface, carry out restoration of the ecosystem。
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| WO2022125903A1 (en) * | 2020-12-12 | 2022-06-16 | Carus Llc | Methods and system for a mixed liquid oxidant |
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Cited By (4)
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| CN108372195A (en) * | 2018-05-15 | 2018-08-07 | 武汉农尚环境股份有限公司 | A kind of method that oxidizing process collaboration lawn plant repairs petroleum hydrocarbon contaminated soil |
| CN111320986A (en) * | 2020-03-27 | 2020-06-23 | 浙江易承环境科研有限公司 | Soil remediation technology |
| CN111320986B (en) * | 2020-03-27 | 2021-11-09 | 浙江易承环境科研有限公司 | Soil remediation technology |
| WO2022125903A1 (en) * | 2020-12-12 | 2022-06-16 | Carus Llc | Methods and system for a mixed liquid oxidant |
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