CN109261706A - Application of the surfactant in terms of handling organic phosphor polluted soil - Google Patents
Application of the surfactant in terms of handling organic phosphor polluted soil Download PDFInfo
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- CN109261706A CN109261706A CN201811089743.5A CN201811089743A CN109261706A CN 109261706 A CN109261706 A CN 109261706A CN 201811089743 A CN201811089743 A CN 201811089743A CN 109261706 A CN109261706 A CN 109261706A
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/38—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidation; by combustion
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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
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- 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
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/26—Organic substances containing nitrogen or phosphorus
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to soil improvement fields, and in particular to a kind of application of surfactant in terms of handling organic phosphor polluted soil.Include the following steps: 1) to pre-process 100 parts of soil, after sieve picks sundries, stalk 10-20 parts of addition, 12-16 parts of biomass carbon and highly basic；2) nonionic surface active agent is added；3) by soil sealing stockpiling 2-7 days in step 2), the moisture content of soil 20%-70% is kept during stockpiling maintenance；4) strong oxidizer sodium hypochlorite is added into the soil that step 3) obtains and stirs；5) strong acid solution is added；6) step 5) is sufficiently stirred to the soil sealing stockpiling of processing, the moisture content of 20%-70% is kept to conserve 1-3 days.The application proposes the treatment process of joint chemical oxidation, and the stalk of addition can be improved the gas porosity of soil after subsequent step aoxidizes, more stable thoroughly than directlying adopt chemical oxidation treatment organic polluted soil merely.
Description
Technical field
The invention belongs to soil improvement fields, and in particular to a kind of surfactant is in terms of handling organic phosphor polluted soil
Application.
Background technique
It is well known that in the past few decades, it is a large amount of dirty due to factors such as industrial technology, urban planning, industrial patterns
It contaminates serious old enterprise to be forced to shut down, wherein being no lack of large number of scale state owned enterprise.Along with China cities and towns in recent years
The swift and violent propulsion changed, some contaminating enterprises gradually enter city hinterland by suburb, are faced with removal important task.What these had been shut down
Old enterprise and the contaminating enterprises location removed or will removed need to be developed and used again to meet Development of Urbanization
It just needs, but these areas (foreign countries are normally referred to as palm fibre ground) have often been highly contaminated, and need to carry out site remediation.
It wherein just include various types of insecticide factory places, it is organic phosphorus to be used as efficient organic agricultural chemicals, it is the agricultural hair in China
Exhibition be made that tremendous contribution, such as DDVP, metrifonate, Rogor, Folithion, thimet, parathion etc. these what's frequently heard can be repeated in detail
Organophosphorus pesticide product, production process need outlet largely to include the organic wastewater of organophosphorus pesticide and reaction intermediate, so
And the waste water disposal facility of most insecticide factories and unsound at that time, or even do not have at all, these high concentrated organic wastewaters lead to
Often be directly discharged into the pond of digging pit of facing of no any safeguard procedures, it is for years, cause nearby large area region depth up to several
The soil pollution that even tens meters of rice, a large amount of foul odour disperses of simultaneous are brought many to the life of neighbouring resident
Puzzlement, also brings serious challenge to the development of urbanization.
But China on the whole about the law of contaminated site reparation, standard, technology etc. all still in grope and experience product
It could be promulgated in tired " ten, soil " estimated year in the stage, being equally concerned with " ten, the water " promulgated, at that time related soil
The technology of earth reparation will be more noticeable.Currently, multi-party data and external practical engineering experience show related soil remediation
Mature technology is mainly thermal desorption technology and chemistry redox technology.Thermal desorption technology is since energy consumption is high, secondary pollution is serious
Etc. drawbacks and receive and denounce extensively, receive stringent limitation in some areas, even prohibite.And chemistry redox
Technology is the difference according to target contaminant, the mistake for selecting efficient oxidation agent or reducing agent to degrade organic matter in soil
Journey, main oxidant to be applied includes Fenton, persulfate, permanganate, chlorine dioxide and hypochlorite etc., due to technology city
Field demand is big, and domestic correlative study is also many.
Summary of the invention
The purpose of the present invention is to provide a kind of application of surfactant in terms of handling organic phosphor polluted soil.
The technical solution adopted to achieve the purpose of the present invention is:
The application of a kind of surfactant in terms of handling organic phosphor polluted soil, which is characterized in that include the following steps:
1) 100 parts of soil, after sieve picks sundries are pre-processed, stalk 10-20 parts of addition, 12-16 parts of biomass carbon and highly basic
Property medicament simultaneously stirs evenly and makes its final ph 9-12；
2) nonionic surface active agent is configured to the aqueous solution that mass fraction is 0.5%-5%, step 1) soil is added
It in earth and quickly stirs, the liquid-solid ratio between additional amount and soil is calculated as 3-20:50 by ml/g；
3) by soil sealing stockpiling 2-7 days in step 2), holding soil 20%-70%'s is aqueous during stockpiling maintenance
Rate；
4) strong oxidizer sodium hypochlorite is added into the soil that step 3) obtains and stirs, it is strong described in additional amount
Oxidant and soil quality part ratio are calculated as 0.5-3:50；
5) strong acid is configured to aqueous solution to be added in step 4) soil, while with quickly stirring, additional amount and soil
Between liquid-solid ratio be calculated as 3-15:100 by ml/g, make its final pH value 3-7；
6) step 5) is sufficiently stirred to the soil sealing stockpiling of processing, the moisture content of 20%-70% is kept to conserve 1-3 days.
The nonionic surface active agent is the nonionic surface active agent that HLB value is greater than 8.
The nonionic surface active agent is one of peregal, polyethylene glycol or any combination.
The strong acid is one of hydrochloric acid, sulfuric acid, nitric acid or any combination.
Compared with prior art, the beneficial effects of the present invention are:
The application proposes the treatment process of joint chemical oxidation, and the stalk of addition can be improved soil after subsequent step aoxidizes
The gas porosity of earth is more stable thoroughly than directlying adopt chemical oxidation treatment organic polluted soil merely.Change dosing method, coupling
It closes and strengthens medicament dissolution heat release and surfactant to the solubilized effect of organic pollutant, the out-phase of organic matter in soil is accelerated to move
It moves and reaction participates in, realize the comprehensive utilization of energy.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, implement below with reference to best
The present invention is described in further detail for example.
It is analyzed combined with specific embodiments below:
Embodiment 1:
1. a kind of application of surfactant in terms of handling organic phosphor polluted soil, which is characterized in that including following steps
It is rapid:
1) 100 parts of soil, after sieve picks sundries are pre-processed, stalk 10-20 parts of addition, 12-16 parts of biomass carbon and highly basic
Property medicament simultaneously stirs evenly and makes its final ph 9-12；
2) nonionic surface active agent is configured to the aqueous solution that mass fraction is 0.5%-5%, step 1) soil is added
It in earth and quickly stirs, the liquid-solid ratio between additional amount and soil is calculated as 3-20:50 by ml/g；
3) by soil sealing stockpiling 2-7 days in step 2), holding soil 20%-70%'s is aqueous during stockpiling maintenance
Rate；
4) strong oxidizer sodium hypochlorite is added into the soil that step 3) obtains and stirs, it is strong described in additional amount
Oxidant and soil quality part ratio are calculated as 0.5-3:50；
5) strong acid is configured to aqueous solution to be added in step 4) soil, while with quickly stirring, additional amount and soil
Between liquid-solid ratio be calculated as 3-15:100 by ml/g, make its final pH value 3-7；
6) step 5) is sufficiently stirred to the soil sealing stockpiling of processing, the moisture content of 20%-70% is kept to conserve 1-3 days.
The results show that treated, soil fully meets " exhibition land used evaluation criteria of soil environment quality " (HJ 350-
2007) the A grade standard in.Soil color reverts to yellowish-brown after processing, and strong foul smell disappears.
The embodiment of invention is described in detail above, but content is only the preferred embodiment of the present invention, no
It can be believed to be used to limit the scope of the invention.Any changes and modifications in accordance with the scope of the present application,
It should still fall within the scope of the patent of the present invention.
Claims (4)
1. a kind of application of surfactant in terms of handling organic phosphor polluted soil, which is characterized in that include the following steps:
1) 100 parts of soil, after sieve picks sundries are pre-processed, stalk 10-20 parts of addition, 12-16 parts of biomass carbon and strong basicity medicine
Agent simultaneously stirs evenly and makes its final ph 9-12；
2) nonionic surface active agent is configured to the aqueous solution that mass fraction is 0.5%-5%, be added in step 1) soil
And quickly stir, the liquid-solid ratio between additional amount and soil is calculated as 3-20:50 by ml/g；
3) by soil sealing stockpiling 2-7 days in step 2), the moisture content of soil 20%-70% is kept during stockpiling maintenance；
4) strong oxidizer sodium hypochlorite is added into the soil that step 3) obtains and stirs, Strong oxdiative described in additional amount
Agent and soil quality part ratio are calculated as 0.5-3:50；
5) strong acid is configured to aqueous solution to be added in step 4) soil, while with quickly stirring, between additional amount and soil
Liquid-solid ratio be calculated as 3-15:100 by ml/g, make its final pH value 3-7；
6) step 5) is sufficiently stirred to the soil sealing stockpiling of processing, the moisture content of 20%-70% is kept to conserve 1-3 days.
2. application of the surfactant according to claim 1 in terms of handling organic phosphor polluted soil, which is characterized in that
The nonionic surface active agent is the nonionic surface active agent that HLB value is greater than 8.
3. application of the surfactant according to claim 2 in terms of handling organic phosphor polluted soil, which is characterized in that
The nonionic surface active agent is one of peregal, polyethylene glycol or any combination.
4. application of the surfactant according to claim 1 in terms of handling organic phosphor polluted soil, which is characterized in that
The strong acid is one of hydrochloric acid, sulfuric acid, nitric acid or any combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089743.5A CN109261706A (en) | 2018-09-18 | 2018-09-18 | Application of the surfactant in terms of handling organic phosphor polluted soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089743.5A CN109261706A (en) | 2018-09-18 | 2018-09-18 | Application of the surfactant in terms of handling organic phosphor polluted soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109261706A true CN109261706A (en) | 2019-01-25 |
Family
ID=65197621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811089743.5A Withdrawn CN109261706A (en) | 2018-09-18 | 2018-09-18 | Application of the surfactant in terms of handling organic phosphor polluted soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109261706A (en) |
-
2018
- 2018-09-18 CN CN201811089743.5A patent/CN109261706A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190125 |
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| WW01 | Invention patent application withdrawn after publication |