CN107384414A - Rice field heavy metal absorbent - Google Patents

Rice field heavy metal absorbent Download PDF

Info

Publication number
CN107384414A
CN107384414A CN201710510155.3A CN201710510155A CN107384414A CN 107384414 A CN107384414 A CN 107384414A CN 201710510155 A CN201710510155 A CN 201710510155A CN 107384414 A CN107384414 A CN 107384414A
Authority
CN
China
Prior art keywords
parts
heavy metal
rice field
soil
metal absorbent
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
Application number
CN201710510155.3A
Other languages
Chinese (zh)
Inventor
陆俊嘉
蓝贤波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fangchenggang Water Conservancy And Hydropower Survey And Design Institute
Original Assignee
Fangchenggang Water Conservancy And Hydropower Survey And Design Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fangchenggang Water Conservancy And Hydropower Survey And Design Institute filed Critical Fangchenggang Water Conservancy And Hydropower Survey And Design Institute
Priority to CN201710510155.3A priority Critical patent/CN107384414A/en
Publication of CN107384414A publication Critical patent/CN107384414A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00Soil-conditioning materials or soil-stabilising materials
    • C09K17/40Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/08Reclamation of contaminated soil chemically
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2101/00Agricultural use

Abstract

The invention discloses a kind of rice field heavy metal absorbent, mainly it is made up of following raw material:Peat, biological carbon, vinasse, marine alga, bentonite, volcano lime, citric acid, humic acid, oyster shell whiting, ground phosphate rock, diatomite, furfural dregs and filter mud.Rice field heavy metal absorbent of the present invention, after heavy metal contaminated soil carries out adsorption treatment, the adsorption effect of heavy metal absorbent is good.Heavy metal element in the thorough strong adsorption soil of energy, it is set to cannot participate in cation exchange, it will be exchanged to the heavy metal adsorbed in the soil liquid, the heavy metal of plant absorption is available in soil to be largely reduced in allowable range, solves soil compaction phenomenon simultaneously, soil is become soft, it is solid to be not easy knot.Application method is simple, and adsorbent is dissipated such as Tanaka, and is discharged water toward Tanaka, then beats field with tractor, is mixed into soil, mixes and stands a period of time afterwards, to be adsorbed dose with the heavy metal reaction absorption of Tanaka, the heavy metal ion that removal Tanaka dissociates.

Description

Rice field heavy metal absorbent
Technical field
The present invention relates to heavy metal to administer field, more particularly to a kind of rice field heavy metal absorbent.
Background technology
Reservoir is one of widely used engineering measure of China's flood control.Being built in flood control zone upper river appropriate location to adjust The multiple purpose reservoir of flood storage water, using reservoir capacity water conservation, the crest discharge into downstream river course is cut down, reaches deduction and exemption The purpose of flood damage.Reservoir has two kinds of different modes to the adjustment effect of flood, and one kind plays retention effect of lake, and another kind plays flood storage Effect.
Heavy metal refers to the metal that proportion is equal to or more than 5.0, such as Fe, Mn, Zn, Cd, Hg, Ni, Co;As is a kind of accurate Metal, but because its chemical property and environmental behaviour have similarity more with heavy metal, therefore frequently included when discussing heavy metal Arsenic, some are then directly included into the range of heavy metal.Because iron and manganese content are higher in soil, thus it is generally acknowledged that them It is not soil pollution element, but under strong reducing condition, the murder by poisoning caused by iron and manganese also causes enough attention.China is multiple It is exceeded that the rice produced is found cadmium, and soil pollution is into " public hazards ".The appearance of " cadmium rice crisis ", beats soil pollution again Alarm bell.In the season that amount of rainfall is larger, the water of upstream is washed into reservoir, and life of the reservoir generally also as resident nearby is used Water.The water quality of reservoir is polluted if subjected to heavy metal pollution, then easily immerse reservoir by rain drop erosion for the soil of upstream.Soil It is contaminated, after Planting Crops, crops absorb the heavy metal in soil, can cause crop production reduction or the product of crops Matter is affected.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering It has been the prior art well known to persons skilled in the art when being considered as recognizing or implying the information structure in any form.
The content of the invention
It is an object of the invention to provide a kind of rice field heavy metal absorbent, so as to overcome soil by heavy metal pollution, The inapparent shortcoming of regulation effect.
It is another object of the present invention to provide a kind of preparation method of rice field heavy metal absorbent, and provide rice field The application method of heavy metal absorbent.
To achieve the above object, the invention provides a kind of rice field heavy metal absorbent, mainly it is made up of following raw material:Mud Charcoal, biological carbon, vinasse, marine alga, bentonite, volcano lime, citric acid, humic acid, oyster shell whiting, ground phosphate rock, diatomite, furfural dregs And filter mud.
Preferably, in above-mentioned technical proposal, described rice field heavy metal absorbent, count in parts by weight, mainly by following Raw material is made:Peat 33-55 parts, biological carbon 12-25 parts, vinasse 5-15 parts, marine alga 17-27 parts, bentonite 12-25 parts, volcano Lime 9-17 parts, citric acid 3-9 parts, humic acid 10-15 parts, oyster shell whiting 5-18 parts, ground phosphate rock 5-14 parts, diatomite 9-18 parts, Furfural dregs 11-24 parts and filter mud 23-35 parts.
Preferably, in above-mentioned technical proposal, described rice field heavy metal absorbent, count in parts by weight, mainly by following Raw material is made:45 parts of peat, 17 parts of biological carbon, 9 parts of vinasse, 23 parts of marine alga, 17 parts of bentonite, 12 parts of volcano lime, citric acid 6 Part, 12 parts of humic acid, 12 parts of oyster shell whiting, 8 parts of ground phosphate rock, 13 parts of diatomite, 17 parts of furfural dregs and 29 parts of filter mud.
A kind of preparation method of rice field heavy metal absorbent, comprises the following steps:
(1) peat, vinasse, marine alga, humic acid, filter mud and aerobic fermentation bacterium are well mixed, heap piles up temperature as 20 DEG C More than, fermentation obtains mixed fermentation thing in 10-20 days;
(2) by mixed fermentation thing made from step (1) with, biological carbon, bentonite, volcano lime, citric acid, oyster shell whiting, Ground phosphate rock, diatomite, furfural dregs are well mixed, and obtain rice field heavy metal absorbent.
Preferably, in above-mentioned technical proposal, the aerobic fermentation bacterium is VT zymophytes, and its dosage is marine alga quality 0.03-0.1%.
A kind of application method of rice field heavy metal absorbent, comprises the following steps:Every mu is applied 400-500 kilograms of rice field weight Metal absorbent, uniformly give in farmland, Tanaka there need to be water, then beat field with tractor, be mixed into soil, quiet after mixing Put 3-10 days, the water during this in paddy field, which does not enter, also not to be gone out.
Compared with prior art, the present invention has the advantages that:
(1) rice field heavy metal absorbent of the present invention, after heavy metal contaminated soil carries out adsorption treatment, heavy metal absorbent Adsorption effect it is good.Heavy metal element in the thorough strong adsorption soil of energy, makes it cannot participate in cation exchange, will be with suction Attached heavy metal firmly is exchanged in the soil liquid, and model can be allowed by being available for the heavy metal of plant absorption to be largely reduced in soil In enclosing, while solve soil compaction phenomenon, soil is become soft, it is solid to be not easy knot.And preparation method is simple, it is easy to produce.
(2) adsorbent application method of the present invention is simple, and adsorbent dissipates such as Tanaka, and is discharged water toward Tanaka, then uses tractor Field is beaten, is mixed into soil, mixes and stands a period of time afterwards, to be adsorbed dose adsorbs with the reaction of the heavy metal of Tanaka, removal Tanaka Free heavy metal ion.
Embodiment
With reference to specific embodiment, the embodiment of the present invention is described in detail, it is to be understood that this hair Bright protection domain is not limited by embodiment.
Embodiment 1
A kind of rice field heavy metal absorbent, is counted in parts by weight, is mainly made up of following raw material:45 parts of peat, biological carbon 17 parts, 9 parts of vinasse, 23 parts of marine alga, 17 parts of bentonite, 12 parts of volcano lime, 6 parts of citric acid, 12 parts of humic acid, oyster shell whiting 12 Part, 8 parts of ground phosphate rock, 13 parts of diatomite, 17 parts of furfural dregs and 29 parts of filter mud.
A kind of preparation method of rice field heavy metal absorbent, comprises the following steps:
(1) peat, vinasse, marine alga, humic acid, filter mud and aerobic fermentation bacterium are well mixed, aerobic fermentation bacterium sends out for VT Yeast-like fungi, its dosage are the 0.06% of marine alga quality, and heap piles up temperature as more than 20 DEG C, and fermentation obtains mixed fermentation thing in 16 days;
(2) by mixed fermentation thing made from step (1) with, biological carbon, bentonite, volcano lime, citric acid, oyster shell whiting, Ground phosphate rock, diatomite, furfural dregs are well mixed, and obtain rice field heavy metal absorbent.
Rice field heavy metal absorbent is used in field, application method comprises the following steps:450 kilograms of rice field weights of every mu of administration Metal absorbent, uniformly give in farmland, Tanaka there need to be water, then beat field with tractor, and field is beaten more thin better, will adsorbed Agent is mixed into soil, is mixed and is stood 7 days afterwards, the water during this in paddy field, which does not enter, also not to be gone out.
Heavy metal-polluted soil processing experiment:It is native as trying soil sample by the table in the rice field of heavy metal using Guangxi Fangcheng Port.Institute The heavy metal contained has cadmium, chromium, lead etc., pedotheque is air-dried after grinding, standby by being collected after 10-mesh screen clothes, with chloroazotic acid Digestion method and ICP-AES analysis heavy metal content in soil.Cadmium in soil is predominantly detected, the tenor of chromium, uses the present embodiment Rice field heavy metal absorbent is handled soil sample, and cadmium content reduces by 24.3% in rice field, and chromium content reduces by 21.1%, lead content Reduce by 22.3%.
Embodiment 2
A kind of rice field heavy metal absorbent, is counted in parts by weight, is mainly made up of following raw material:33 parts of peat, biological carbon 25 parts, 15 parts of vinasse, 17 parts of marine alga, 25 parts of bentonite, 9 parts of volcano lime, 3 parts of citric acid, 10 parts of humic acid, oyster shell whiting 18 Part, 5 parts of ground phosphate rock, 9 parts of diatomite, 24 parts of furfural dregs and 23 parts of filter mud.
A kind of preparation method of rice field heavy metal absorbent, comprises the following steps:
(1) peat, vinasse, marine alga, humic acid, filter mud and aerobic fermentation bacterium are well mixed, aerobic fermentation bacterium sends out for VT Yeast-like fungi, its dosage are the 0.03% of marine alga quality, and heap piles up temperature as more than 20 DEG C, and fermentation obtains mixed fermentation thing in 20 days;
(2) by mixed fermentation thing made from step (1) with, biological carbon, bentonite, volcano lime, citric acid, oyster shell whiting, Ground phosphate rock, diatomite, furfural dregs are well mixed, and obtain rice field heavy metal absorbent.
Rice field heavy metal absorbent is used in field, application method comprises the following steps:400 kilograms of rice field weights of every mu of administration Metal absorbent, uniformly give in farmland, Tanaka there need to be water, then beat field with tractor, and field is beaten more thin better, will adsorbed Agent is mixed into soil, is mixed and is stood 10 days afterwards, the water during this in paddy field, which does not enter, also not to be gone out.
Heavy metal-polluted soil processing experiment:It is native as trying soil sample by the table in the rice field of heavy metal using tourist resources. Contained heavy metal has cadmium, chromium, lead etc., pedotheque is air-dried after grinding, standby by being collected after 10-mesh screen clothes, with king Water digestion method and ICP-AES analysis heavy metal content in soil.Cadmium in soil is predominantly detected, the tenor of chromium, uses this implementation Example rice field heavy metal absorbent is handled soil sample, and cadmium content reduces by 23.8% in rice field, and chromium content reduces by 20.8%, and lead contains Amount reduces by 21.6%.
Embodiment 3
A kind of rice field heavy metal absorbent, is counted in parts by weight, is mainly made up of following raw material:55 parts of peat, biological carbon 12 parts, 5 parts of vinasse, 27 parts of marine alga, 12 parts of bentonite, 17 parts of volcano lime, 9 parts of citric acid, 15 parts of humic acid, 5 parts of oyster shell whiting, 35 parts of 14 parts of ground phosphate rock, 18 parts of diatomite, 11 parts of furfural dregs and filter mud.
A kind of preparation method of rice field heavy metal absorbent, comprises the following steps:
(1) peat, vinasse, marine alga, humic acid, filter mud and aerobic fermentation bacterium are well mixed, aerobic fermentation bacterium sends out for VT Yeast-like fungi, its dosage are the 0.1% of marine alga quality, and heap piles up temperature as more than 20 DEG C, and fermentation obtains mixed fermentation thing in 10 days;
(2) by mixed fermentation thing made from step (1) with, biological carbon, bentonite, volcano lime, citric acid, oyster shell whiting, Ground phosphate rock, diatomite, furfural dregs are well mixed, and obtain rice field heavy metal absorbent.
Soil heavy mental adsorbent is used in field, application method comprises the following steps:500 kilograms of soil weights of every mu of administration Metal absorbent, uniformly give in farmland, Tanaka there need to be water, then beat field with tractor, and field is beaten more thin better, will adsorbed Agent is mixed into soil, is mixed and is stood 3 days afterwards, the water during this in paddy field, which does not enter, also not to be gone out.
Heavy metal-polluted soil processing experiment:It is native as trying soil sample by the table in the rice field of heavy metal using Guangxi Fangcheng Port.Institute The heavy metal contained has cadmium, chromium, lead etc., pedotheque is air-dried after grinding, standby by being collected after 10-mesh screen clothes, with chloroazotic acid Digestion method and ICP-AES analysis heavy metal content in soil.Cadmium in soil is predominantly detected, the tenor of chromium, uses the present embodiment Rice field heavy metal absorbent is handled soil sample, and cadmium content reduces by 23.9% in rice field, and chromium content reduces by 21.0%, lead content Reduce by 22.4%.
Embodiment 4
A kind of rice field heavy metal absorbent, is counted in parts by weight, is mainly made up of following raw material:45 parts of peat, biological carbon 17 parts, 17 parts of bentonite, 12 parts of volcano lime, 6 parts of citric acid, 12 parts of oyster shell whiting, 8 parts of ground phosphate rock, 13 parts of diatomite, furfural dregs 17 parts and 29 parts of filter mud.
A kind of preparation method of rice field heavy metal absorbent, comprises the following steps:
(1) peat, filter mud and aerobic fermentation bacterium are well mixed, aerobic fermentation bacterium is VT zymophytes, and its dosage is filter mud The 0.06% of quality, heap pile up temperature as more than 20 DEG C, and fermentation obtains mixed fermentation thing in 16 days;
(2) by mixed fermentation thing made from step (1) with, biological carbon, bentonite, volcano lime, citric acid, oyster shell whiting, Ground phosphate rock, diatomite, furfural dregs are well mixed, and obtain rice field heavy metal absorbent.
Heavy metal-polluted soil processing experiment:It is native as trying soil sample by the table in the rice field of heavy metal using tourist resources. Contained heavy metal has cadmium, chromium, lead etc., pedotheque is air-dried after grinding, standby by being collected after 10-mesh screen clothes, with king Water digestion method and ICP-AES analysis heavy metal content in soil.Cadmium in soil is predominantly detected, the tenor of chromium, uses this implementation Example rice field heavy metal absorbent is handled soil sample, and cadmium content reduces by 18.2% in rice field, and chromium content reduces by 17.4%, and lead contains Amount reduces by 16.3%.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These descriptions It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed And change.The purpose of selecting and describing the exemplary embodiment is that explain that the certain principles of the present invention and its reality should With so that those skilled in the art can realize and utilize the present invention a variety of exemplaries and Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.

Claims (6)

1. a kind of rice field heavy metal absorbent, it is characterised in that be mainly made up of following raw material:Peat, biological carbon, vinasse, sea Algae, bentonite, volcano lime, citric acid, humic acid, oyster shell whiting, ground phosphate rock, diatomite, furfural dregs and filter mud.
2. rice field heavy metal absorbent according to claim 1, it is characterised in that count in parts by weight, mainly by following Raw material is made:Peat 33-55 parts, biological carbon 12-25 parts, vinasse 5-15 parts, marine alga 17-27 parts, bentonite 12-25 parts, volcano Lime 9-17 parts, citric acid 3-9 parts, humic acid 10-15 parts, oyster shell whiting 5-18 parts, ground phosphate rock 5-14 parts, diatomite 9-18 parts, Furfural dregs 11-24 parts and filter mud 23-35 parts.
3. rice field heavy metal absorbent according to claim 1, it is characterised in that count in parts by weight, mainly by following Raw material is made:45 parts of peat, 17 parts of biological carbon, 9 parts of vinasse, 23 parts of marine alga, 17 parts of bentonite, 12 parts of volcano lime, citric acid 6 Part, 12 parts of humic acid, 12 parts of oyster shell whiting, 8 parts of ground phosphate rock, 13 parts of diatomite, 17 parts of furfural dregs and 29 parts of filter mud.
4. the preparation method of the rice field heavy metal absorbent described in a kind of claim 1, it is characterised in that comprise the following steps:
(1) peat, vinasse, marine alga, humic acid, filter mud and aerobic fermentation bacterium being well mixed, heap piles up temperature as more than 20 DEG C, Fermentation obtains mixed fermentation thing in 10-20 days;
(2) by mixed fermentation thing made from step (1) with, biological carbon, bentonite, volcano lime, citric acid, oyster shell whiting, phosphorus ore Powder, diatomite, furfural dregs are well mixed, and obtain rice field heavy metal absorbent.
5. the preparation method of rice field heavy metal absorbent according to claim 4, it is characterised in that the aerobic fermentation bacterium is VT zymophytes, its dosage are the 0.03-0.1% of marine alga quality.
6. the application method of the rice field heavy metal absorbent described in a kind of claim 1, it is characterised in that comprise the following steps: Every mu is applied 400-500 kilograms of rice field heavy metal absorbent, is uniformly given in farmland, Tanaka need to have water, then use tractor Field is beaten, is mixed into soil, mixes and stands 3-10 days afterwards, the water during this in paddy field, which does not enter, also not to be gone out.
CN201710510155.3A 2017-06-28 2017-06-28 Rice field heavy metal absorbent Pending CN107384414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710510155.3A CN107384414A (en) 2017-06-28 2017-06-28 Rice field heavy metal absorbent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710510155.3A CN107384414A (en) 2017-06-28 2017-06-28 Rice field heavy metal absorbent

Publications (1)

Publication Number Publication Date
CN107384414A true CN107384414A (en) 2017-11-24

Family

ID=60333785

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710510155.3A Pending CN107384414A (en) 2017-06-28 2017-06-28 Rice field heavy metal absorbent

Country Status (1)

Country Link
CN (1) CN107384414A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108326038A (en) * 2017-12-27 2018-07-27 华中农业大学 Purposes of the vinasse in activating soil arsenic and in increasing soil fertility
CN108728107A (en) * 2018-05-25 2018-11-02 合肥慧谷农业科技有限公司 A kind of soil conditioner and preparation method thereof handling heavy metal
CN108841398A (en) * 2018-08-09 2018-11-20 北京泷涛环境修复有限公司 Medicament, preparation method and restorative procedure are repaired in passivation for As polluted soil
CN110452705A (en) * 2019-07-31 2019-11-15 安徽禾美环保集团有限公司 A kind of heavy metal pollution of soil renovation agent and preparation method thereof
CN110885265A (en) * 2018-09-08 2020-03-17 深圳市夸克生物科技有限公司 Soil rejuvenation ecological fertilizer and preparation method thereof
CN114031461A (en) * 2021-10-26 2022-02-11 中冶南方都市环保工程技术股份有限公司 Organic silicon fertilizer for reducing chromium and arsenic content in rice and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102389776A (en) * 2011-10-09 2012-03-28 广东省生态环境与土壤研究所 Metal heavy absorbent and preparation method and use thereof
CN105435752A (en) * 2016-01-05 2016-03-30 郭菲 Heavy metal ions absorbent and preparation method thereof
CN106495939A (en) * 2016-10-14 2017-03-15 上海诺同农业科技有限公司 Heavy metal-polluted soil renovation agent, preparation method and application
CN106669609A (en) * 2016-12-27 2017-05-17 河南八灵电子科技有限公司 Heavy metal adsorbent and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102389776A (en) * 2011-10-09 2012-03-28 广东省生态环境与土壤研究所 Metal heavy absorbent and preparation method and use thereof
CN105435752A (en) * 2016-01-05 2016-03-30 郭菲 Heavy metal ions absorbent and preparation method thereof
CN106495939A (en) * 2016-10-14 2017-03-15 上海诺同农业科技有限公司 Heavy metal-polluted soil renovation agent, preparation method and application
CN106669609A (en) * 2016-12-27 2017-05-17 河南八灵电子科技有限公司 Heavy metal adsorbent and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108326038A (en) * 2017-12-27 2018-07-27 华中农业大学 Purposes of the vinasse in activating soil arsenic and in increasing soil fertility
CN108728107A (en) * 2018-05-25 2018-11-02 合肥慧谷农业科技有限公司 A kind of soil conditioner and preparation method thereof handling heavy metal
CN108841398A (en) * 2018-08-09 2018-11-20 北京泷涛环境修复有限公司 Medicament, preparation method and restorative procedure are repaired in passivation for As polluted soil
CN110885265A (en) * 2018-09-08 2020-03-17 深圳市夸克生物科技有限公司 Soil rejuvenation ecological fertilizer and preparation method thereof
CN110452705A (en) * 2019-07-31 2019-11-15 安徽禾美环保集团有限公司 A kind of heavy metal pollution of soil renovation agent and preparation method thereof
CN114031461A (en) * 2021-10-26 2022-02-11 中冶南方都市环保工程技术股份有限公司 Organic silicon fertilizer for reducing chromium and arsenic content in rice and preparation method and application thereof
CN114031461B (en) * 2021-10-26 2023-07-14 中冶南方都市环保工程技术股份有限公司 Organic silicon fertilizer for reducing chromium and arsenic content in rice, and preparation method and application thereof

Similar Documents

Publication Publication Date Title
CN107384414A (en) Rice field heavy metal absorbent
Bian et al. Cd immobilization in a contaminated rice paddy by inorganic stabilizers of calcium hydroxide and silicon slag and by organic stabilizer of biochar
Su et al. Chemical speciation and phytoavailability of Zn, Cu, Ni and Cd in soil amended with fly ash-stabilized sewage sludge
CN103756684B (en) A kind of soil conditioner with multiple benefits
CN106883859B (en) Soil conditioner and its protectiveness preparation technology
CN101507400B (en) Method of controlling heavy metal cadmium accumulation of paddy
CN107189788A (en) Soil heavy mental adsorbent
CN104446913B (en) A kind of Sargassum graft type fertilizer and preparation method thereof
CN107318548A (en) A kind of method for paddy rice of being kept the safety in production in cadmium pollution soil
CN109678626A (en) The soil conditioner and the preparation method and application thereof repaired for mercury pollution farmland
CN107162793A (en) A kind of Fertilizer Combination and its method of application of the mild or moderate cadmium pollution of prevention and control rice field
CN104591831A (en) Special seaweed foliar fertilizer for tea trees and preparation method of seaweed foliar fertilizer
CN102515959A (en) Water-soluble polymer synergist used for fertilizers, its preparation method and application
CN110303035A (en) A kind of method that the modified rice hull carbon of manganese repairs cadmium arsenic combined contamination soil and reduces cadmium arsenic in rice
CN108559519A (en) Heavy metal cadmium stabilizer and preparation method thereof and the application in paddy soil
TW202118856A (en) Soil restoration method and structure
CN106345431A (en) Soil heavy mental absorbing agent
Liu et al. Ground cover rice production systems increase soil carbon and nitrogen stocks at regional scale
CN105885854A (en) Remediation agent for heavy metal contaminated soil
CN110144222A (en) A kind of As contaminated soil passivation renovation agent and preparation method thereof
CN111282980B (en) Method for safely recycling heavy metal contaminated soil subjected to chemical leaching remediation
CN109504394A (en) Ecological organic type compound water retaining agent and preparation method thereof and retain water and nutrients soil
Cui et al. Effect of mineral loaded biochar on the leaching performances of nitrate and phosphate in two contrasting soils from the coastal estuary area
CN107935768A (en) A kind of fertilizer of salt-soda soil special nutritional equilibrium
CN105418337B (en) The slow release fertilizer and preparation method thereof of heavy metal in soil ion concentration can be reduced

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171124