CN108130087A - A kind of soil conditioner and application process for repairing cadmium-arsenic combined pollution - Google Patents
A kind of soil conditioner and application process for repairing cadmium-arsenic combined pollution Download PDFInfo
- Publication number
- CN108130087A CN108130087A CN201810002312.4A CN201810002312A CN108130087A CN 108130087 A CN108130087 A CN 108130087A CN 201810002312 A CN201810002312 A CN 201810002312A CN 108130087 A CN108130087 A CN 108130087A
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- soil
- soil conditioner
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- combined pollution
- arsenic combined
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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
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- 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
-
- 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
- C09K2101/00—Agricultural use
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of soil conditioners and application process for repairing cadmium arsenic combined pollution, it includes following mass component：2 30 parts of molysite, 10 45 parts of silicide, 2 15 parts of Mn oxide, 10 40 parts of quick lime, 20 50 parts of bentonite, application process is characterized in that：Farmland Soil Pollution degree is first investigated, soil conditioner is uniformly spread fertilizer over the fields on agricultural land soil surface, is then turned over soil conditioner and the abundant mixing of agricultural land soil, maintenance transplants crop after 37 days.The present invention have many advantages, such as to repair simultaneously cadmium arsenic combined pollution agricultural land soil, dosage is small, do not influence soil texture and property, with long-term stability, the secondary release of heavy metal can be prevented.
Description
Technical field
The present invention relates to contaminated soil remediation field more particularly to a kind of soil conditioners for repairing cadmium-arsenic combined pollution
And application process.
Background technology
With the continuous quickening of China's process of industrialization, sewage and rubbish that the discharge of Industrial " three Waste ", urban life generate
Atmospheric sedimentation caused by the unreasonable use and human activity of the pollution of rubbish, the pesticide containing heavy metal and chemical fertilizer, causes
Soil pollution is serious.Heavy metal in soil pollutant sources are extensive, wide variety, can be divided into from ionic species cadmium ion,
The anionics pollutant such as the cationics such as copper ion pollutant and arsenate, chromate.In many contaminated soils, negative and positive from
Subtype pollution is simultaneous, needs a kind of recovery technique that can reduce male/female ionic hazard of contaminant risk simultaneously
Realize effective improvement to contaminated soil.
At present, heavy metal pollution of soil repair mode is based on physics, chemical remediation, including with soil moved in improve the original, soil removal and replacement and deep ploughing
Gongwu measure based on digging etc. and the chemical remediation measure based on curing/stabilizing.It is deep in gongwu measure
Plough soil and be suitable for slight pollution soil, soil moved in improve the original and soil removal and replacement are suitable for seriously polluted area, although with repair thoroughly, stablize it is excellent
Point, but there are quantities is big, investment is high, destroys the problems such as big, secondary pollution and agricultural soil resource shortage, it is difficult to it pushes away on a large scale
Wide application.Chemical remediation be then by adding modifying agent into contaminated soil, changing Heavy Metals and its biological effectiveness, with
Inhibit or reduce absorption of the plant to heavy metal.Common modifying agent includes inorganic matter phosphate, lime, red mud, calcium magnesium phosphate,
And the organic matters such as straw compost.At present, it is more for the soil conditioner type of single heavy metal pollution, and for cadmium-arsenic
The soil conditioner of combined pollution agricultural land soil is few, such as Chinese patent (application number：201510412174.3) disclose it is a kind of heavy
Metallic stabilizer and application process specifically disclose phosphate, quick lime, zeolite powder, potassium chloride etc. and are applied in combination, processing
Heavy metal ion Pb2+、Zn2+、Cu2+、Cd2+Deng, but its exist can not fixed arsenic, repairing effect is single, usage amount is big and easy
The problem of secondary release.
Invention content
The purpose of the present invention is overcome the deficiencies of the prior art and provide one kind to repair cadmium-arsenic combined pollution farmland simultaneously
Soil, dosage are small, do not influence soil texture and property, have long-term stability, can prevent the reparation cadmium of the secondary release of heavy metal-
The soil conditioner and application process of arsenic combined pollution.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of soil conditioner for repairing cadmium-arsenic combined pollution, it is characterised in that：It includes following mass component：Molysite
2-30 parts, 10-45 parts of silicide, 2-15 parts of Mn oxide, 10-40 parts of quick lime, 20-50 parts of bentonite.
As being further improved for above technical scheme：
The silicide is silicate or clay mineral, specifically using calcium silicates or potassium feldspar, have to heavy metal absorption,
Precipitation and biological inhibition function, and be conducive to crop growth.
The molysite uses ferrous sulfate or iron chloride, has preferably co-precipitation and adsorption effect.
The Mn oxide is manganese dioxide or hausmannite, can control the migration and enrichment of heavy metal contaminants, and can be right
Organic murder by poisoning object is degraded.
Due to belonging to a total inventive concept, the invention also discloses a kind of soil tune for repairing cadmium-arsenic combined pollution
Manage agent application process, it is characterised in that：Farmland Soil Pollution degree is first investigated, soil conditioner is uniformly spread fertilizer over the fields in agricultural land soil
On surface, then turn over soil conditioner and the abundant mixing of agricultural land soil, maintenance transplants crop after 3-7 days.
As being further improved for above technical scheme：
0.05%-0.2%, i.e. 75kg/ mu -300kg/ of the adding proportion of the soil conditioner for soil quality per acre
Mu.
Compared with prior art, the advantage of the invention is that：
Can repair simultaneously cadmium-arsenic combined pollution agricultural land soil, dosage is small, do not influence soil texture and property, have it is long-acting
Stability can prevent the secondary release of heavy metal.Compared with prior art：This technology can be realized compound to cadmium-arsenic in agricultural land soil
The in-situ immobilization of pollution reduces cadmium-arsenic biological effectiveness in agricultural land soil；This technology is made using environmentally friendly raw material,
With long-term stability, it can effectively prevent stabilized heavy metal and discharge again, prevent secondary pollution, this technology additive amount exists
Within 0.2%, additive amount is few, can ensure that agricultural land soil original structure is not destroyed.
Specific embodiment
The present invention is described in further detail below with reference to specific embodiment.
Embodiment 1, the present invention include following mass component：2-30 parts of molysite, 10-45 parts of silicide, Mn oxide 2-15
Part, 10-40 parts of quick lime, 20-50 parts of bentonite uniformly mixes above-mentioned each component to obtain finished product；The silicide is silicon
Hydrochlorate or clay mineral specifically using calcium silicates or potassium feldspar, have heavy metal absorption, precipitation and biological inhibition function, and
Be conducive to crop growth, the molysite uses ferrous sulfate or iron chloride, has preferably co-precipitation and adsorption effect, preferably
For ferrous sulfate, the Mn oxide is manganese dioxide or hausmannite, can control the migration and enrichment of heavy metal contaminants, and energy
It degrades to organic murder by poisoning object, preferably manganese dioxide.
The application process of the present invention：Farmland Soil Pollution degree is first investigated, then uniformly spreads fertilizer over the fields soil conditioner in agriculture
On the soil surface of field, then turn over soil conditioner and the abundant mixing of agricultural land soil, maintenance transplants crop after 3-7 days；It is described
0.05%-0.2% of the adding proportion of soil conditioner for soil quality per acre, i.e. 75kg/ mus -300kg/ mus.
Embodiment 2, the present invention include following mass component：5-20 parts of molysite, 15-35 parts of silicide, Mn oxide 5-10
Part, 15-30 parts of quick lime, 30-40 parts of bentonite uniformly mixes above-mentioned each component to obtain finished product；The silicide is silicon
Hydrochlorate or clay mineral specifically using calcium silicates or potassium feldspar, have heavy metal absorption, precipitation and biological inhibition function, and
Be conducive to crop growth, the molysite uses ferrous sulfate or iron chloride, has preferably co-precipitation and adsorption effect, preferably
For ferrous sulfate, the Mn oxide is manganese dioxide or hausmannite, can control the migration and enrichment of heavy metal contaminants, and energy
It degrades to organic murder by poisoning object, preferably manganese dioxide.
The application process of the present invention：Farmland Soil Pollution degree is first investigated, then uniformly spreads fertilizer over the fields soil conditioner in agriculture
On the soil surface of field, then turn over soil conditioner and the abundant mixing of agricultural land soil, maintenance transplants crop after 3-7 days；It is described
0.05%-0.2% of the adding proportion of soil conditioner for soil quality per acre, i.e. 75kg/ mus -300kg/ mus.Remaining reference
Embodiment 1.
Embodiment 3, the weight ratio of each component is molysite in the present invention：Silicide：Mn oxide：Quick lime：Bentonite=
10:30:5:25:30。
In order to illustrate the practical application effect of the present embodiment, the soil conditioner of this exemplary configuration is added to contaminated soil,
Turning over makes soil conditioner be sufficiently mixed with contaminated soil.The soil conditioner of 100kg the present embodiment is added per acre, in soil
PH, cadmium, the treatment effect of arsenic are as follows：
| pH | Cadmium (Cd) | Arsenic (As) | |
| Before processing (mg/kg) | 5.63 | 1.27 | 25 |
| After processing (mg/kg) | 6.07 | 0.42 | 9 |
| Effect | Promote 0.44 unit | Abatement 66.9% | Abatement 64.0% |
, remaining refers to above-described embodiment.
Embodiment 4, the present invention are used for the weight ratio of each component in the soil conditioner for repairing cadmium-arsenic combined pollution farmland
For molysite：Silicide：Mn oxide：Quick lime：Bentonite=10:20:10:20:40.
In order to illustrate the practical application effect of the present embodiment, the soil conditioner of this exemplary configuration is added to contaminated soil,
Turning over makes soil conditioner be sufficiently mixed with contaminated soil.The soil conditioner of 150kg the present embodiment is added per acre, in soil
PH, cadmium, the treatment effect of arsenic are as follows：
| pH | Cadmium (Cd) | Arsenic (As) | |
| Before processing (mg/kg) | 5.21 | 1.28 | 18 |
| After processing (mg/kg) | 5.56 | 0.37 | 4.8 |
| Effect | Promote 0.35 unit | Abatement 71.1% | Abatement 73.3% |
, remaining refers to above-described embodiment.
Embodiment 5, the present invention are used for the weight ratio of each component in the soil conditioner for repairing cadmium-arsenic combined pollution farmland
For：Molysite：Silicide：Mn oxide：Quick lime：Bentonite=10:25:5:30:30.
In order to illustrate the practical application effect of the present embodiment, the soil conditioner of this exemplary configuration is added to contaminated soil,
Turning over makes soil conditioner be sufficiently mixed with contaminated soil.The soil conditioner of 200kg the present embodiment is added per acre, in soil
PH, cadmium, the treatment effect of arsenic are as follows：
, remaining refers to above-described embodiment.
Above-mentioned only presently preferred embodiments of the present invention not makees the present invention limitation in any form.It is although of the invention
It is disclosed above with preferred embodiment, however it is not limited to the present invention.Any those skilled in the art are not taking off
In the case of from technical solution of the present invention range, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
Mostly possible changes and modifications or the equivalent embodiment for being revised as equivalent variations.Therefore, it is every without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (6)
1. a kind of soil conditioner for repairing cadmium-arsenic combined pollution, it is characterised in that：It includes following mass component：Molysite 2-
30 parts, 10-45 parts of silicide, 2-15 parts of Mn oxide, 10-40 parts of quick lime, 20-50 parts of bentonite.
2. the soil conditioner according to claim 1 for repairing cadmium-arsenic combined pollution, it is characterised in that：The silicide
For silicate or clay mineral, calcium silicates or potassium feldspar are specifically used.
3. the soil conditioner according to claim 1 for repairing cadmium-arsenic combined pollution, it is characterised in that：The molysite is adopted
With ferrous sulfate or iron chloride.
4. the soil conditioner according to claim 1 for repairing cadmium-arsenic combined pollution, it is characterised in that：The manganese oxidation
Object is manganese dioxide or hausmannite.
5. a kind of soil conditioner application process for repairing cadmium-arsenic combined pollution, it is characterised in that：First investigate Farmland Soil Pollution
Degree, then uniformly spreads fertilizer over the fields soil conditioner on agricultural land soil surface, then turns over soil conditioner and agricultural land soil
Abundant mixing, maintenance transplant crop after 3-7 days.
6. a kind of soil conditioner application process for repairing cadmium-arsenic combined pollution according to claim 5, feature exist
In：0.05%-0.2% of the adding proportion of the soil conditioner for soil quality per acre, i.e. 75kg/ mus -300kg/ mus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810002312.4A CN108130087A (en) | 2018-01-02 | 2018-01-02 | A kind of soil conditioner and application process for repairing cadmium-arsenic combined pollution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810002312.4A CN108130087A (en) | 2018-01-02 | 2018-01-02 | A kind of soil conditioner and application process for repairing cadmium-arsenic combined pollution |
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Family
ID=62399442
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| CN201810002312.4A Pending CN108130087A (en) | 2018-01-02 | 2018-01-02 | A kind of soil conditioner and application process for repairing cadmium-arsenic combined pollution |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435768A (en) * | 2018-04-09 | 2018-08-24 | 湖南金旅环保股份有限公司 | A kind of method that biochemical joint repairs mercury pollution |
| CN109174958A (en) * | 2018-10-15 | 2019-01-11 | 通化海汇龙洲化工有限公司 | Prepare the method for arsenic cadmium passivator, by the arsenic cadmium passivator and purposes of this method preparation |
| CN109233849A (en) * | 2018-09-14 | 2019-01-18 | 安吉艾格赛思生物科技有限公司 | A kind of soil conditioner |
| CN109575926A (en) * | 2018-11-26 | 2019-04-05 | 华中农业大学 | Cadmium arsenic combined contamination soil renovation agent |
| CN109810711A (en) * | 2019-02-27 | 2019-05-28 | 湖南金旅环保股份有限公司 | A kind of reparation cadmium-mercury combined pollution soil conditioner and application method |
| CN109825300A (en) * | 2019-02-19 | 2019-05-31 | 北京润鸣环境科技有限公司 | A kind of As polluted soil renovation agent and preparation method thereof and application method |
| CN110016345A (en) * | 2019-04-24 | 2019-07-16 | 广西博世科环保科技股份有限公司 | A kind of steady arsenic soil passivator of drop cadmium and its application method |
| CN110272743A (en) * | 2019-06-20 | 2019-09-24 | 湖南双红农科生态工程有限公司 | A kind of cadmium arsenic soil conditioner |
| CN110303035A (en) * | 2019-07-01 | 2019-10-08 | 湖南农业大学 | A kind of method that the modified rice hull carbon of manganese repairs cadmium arsenic combined contamination soil and reduces cadmium arsenic in rice |
| CN110922972A (en) * | 2019-12-10 | 2020-03-27 | 江苏省农业科学院 | Composite passivator for repairing cadmium-polluted soil and application method thereof |
| CN111057553A (en) * | 2018-10-17 | 2020-04-24 | 武汉市秀谷科技有限公司 | Cadmium and arsenic composite pollution passivator for farmland, preparation method and use method thereof |
| CN111072237A (en) * | 2019-12-10 | 2020-04-28 | 北京高能时代环境技术股份有限公司 | Arsenic-polluted river and lake bottom mud treatment method |
| CN111676023A (en) * | 2020-05-27 | 2020-09-18 | 永清环保股份有限公司 | Semi-wrapping stabilizing material and preparation method and use method thereof |
| CN111718721A (en) * | 2019-03-18 | 2020-09-29 | 武汉中塘环保科技有限公司 | Novel soil cadmium arsenic passivator and preparation method thereof |
| CN112920802A (en) * | 2021-01-21 | 2021-06-08 | 中国科学院南京土壤研究所 | Application of manganese dioxide as repair material in reducing bioavailability of Cd in weakly alkaline soil |
| CN112939696A (en) * | 2021-02-28 | 2021-06-11 | 湖南中米环保科技有限公司 | Soil conditioner for treating farmland cadmium and arsenic combined pollution and application method thereof |
| CN113105899A (en) * | 2021-04-15 | 2021-07-13 | 上海彩凤环保科技股份有限公司 | Heavy metal stabilizer and application and use method thereof |
| CN113732053A (en) * | 2021-10-13 | 2021-12-03 | 江苏景然生态建设集团有限公司 | Heavy metal soil remediation agent |
| CN114011868A (en) * | 2021-10-13 | 2022-02-08 | 生态环境部南京环境科学研究所 | Arsenic-polluted soil remediation method based on red soil-ferrous sulfate compound stabilizer |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435768A (en) * | 2018-04-09 | 2018-08-24 | 湖南金旅环保股份有限公司 | A kind of method that biochemical joint repairs mercury pollution |
| CN109233849A (en) * | 2018-09-14 | 2019-01-18 | 安吉艾格赛思生物科技有限公司 | A kind of soil conditioner |
| CN109174958A (en) * | 2018-10-15 | 2019-01-11 | 通化海汇龙洲化工有限公司 | Prepare the method for arsenic cadmium passivator, by the arsenic cadmium passivator and purposes of this method preparation |
| CN111057553A (en) * | 2018-10-17 | 2020-04-24 | 武汉市秀谷科技有限公司 | Cadmium and arsenic composite pollution passivator for farmland, preparation method and use method thereof |
| CN109575926A (en) * | 2018-11-26 | 2019-04-05 | 华中农业大学 | Cadmium arsenic combined contamination soil renovation agent |
| CN109825300A (en) * | 2019-02-19 | 2019-05-31 | 北京润鸣环境科技有限公司 | A kind of As polluted soil renovation agent and preparation method thereof and application method |
| CN109810711A (en) * | 2019-02-27 | 2019-05-28 | 湖南金旅环保股份有限公司 | A kind of reparation cadmium-mercury combined pollution soil conditioner and application method |
| CN111718721A (en) * | 2019-03-18 | 2020-09-29 | 武汉中塘环保科技有限公司 | Novel soil cadmium arsenic passivator and preparation method thereof |
| CN110016345B (en) * | 2019-04-24 | 2020-10-27 | 广西博世科环保科技股份有限公司 | Cadmium-reducing arsenic-stabilizing soil passivator and use method thereof |
| CN110016345A (en) * | 2019-04-24 | 2019-07-16 | 广西博世科环保科技股份有限公司 | A kind of steady arsenic soil passivator of drop cadmium and its application method |
| CN110272743A (en) * | 2019-06-20 | 2019-09-24 | 湖南双红农科生态工程有限公司 | A kind of cadmium arsenic soil conditioner |
| CN110303035B (en) * | 2019-07-01 | 2021-12-03 | 湖南农业大学 | Method for repairing cadmium-arsenic composite polluted soil and reducing cadmium and arsenic in rice by manganese-modified rice husk carbon |
| CN110303035A (en) * | 2019-07-01 | 2019-10-08 | 湖南农业大学 | A kind of method that the modified rice hull carbon of manganese repairs cadmium arsenic combined contamination soil and reduces cadmium arsenic in rice |
| CN111072237A (en) * | 2019-12-10 | 2020-04-28 | 北京高能时代环境技术股份有限公司 | Arsenic-polluted river and lake bottom mud treatment method |
| CN110922972A (en) * | 2019-12-10 | 2020-03-27 | 江苏省农业科学院 | Composite passivator for repairing cadmium-polluted soil and application method thereof |
| CN111676023A (en) * | 2020-05-27 | 2020-09-18 | 永清环保股份有限公司 | Semi-wrapping stabilizing material and preparation method and use method thereof |
| CN112920802A (en) * | 2021-01-21 | 2021-06-08 | 中国科学院南京土壤研究所 | Application of manganese dioxide as repair material in reducing bioavailability of Cd in weakly alkaline soil |
| CN112939696A (en) * | 2021-02-28 | 2021-06-11 | 湖南中米环保科技有限公司 | Soil conditioner for treating farmland cadmium and arsenic combined pollution and application method thereof |
| CN113105899A (en) * | 2021-04-15 | 2021-07-13 | 上海彩凤环保科技股份有限公司 | Heavy metal stabilizer and application and use method thereof |
| CN113732053A (en) * | 2021-10-13 | 2021-12-03 | 江苏景然生态建设集团有限公司 | Heavy metal soil remediation agent |
| CN114011868A (en) * | 2021-10-13 | 2022-02-08 | 生态环境部南京环境科学研究所 | Arsenic-polluted soil remediation method based on red soil-ferrous sulfate compound stabilizer |
| CN114011868B (en) * | 2021-10-13 | 2022-11-25 | 生态环境部南京环境科学研究所 | Arsenic-polluted soil remediation method based on red soil-ferrous sulfate compound stabilizer |
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