Soil restoration agent capable of reducing chromium, zinc and copper pollution and preparation method thereof

A soil remediation agent and technology for copper pollution, applied in the field of soil remediation, can solve problems such as low efficiency, complex treatment methods, and inability to efficiently reduce the content at the same time, and achieve the effects of short remediation time and simple remediation methods.

Inactive Publication Date: 2015-03-25
JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Technical problem to be solved: There are many methods for reducing heavy metal pollution in soil at present, but most of the methods are complex and inefficient, and cannot simultaneously and ...

Method used

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  • Soil restoration agent capable of reducing chromium, zinc and copper pollution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Ammonium dihydrogen phosphate, cellulose with a molecular weight distribution of 100,000-120,000, calcium sulfite, bentonite, montmorillonite, ammonium phosphate, chitosan with a molecular weight distribution of 1200-1500, corn stalks, α-ring Dextrin, crush the above ingredients into powder;

[0055] (2) Take 13 parts by weight of ammonium dihydrogen phosphate, 18 parts of cellulose, 6 parts of calcium sulfite, 10 parts of bentonite, 7 parts of montmorillonite, 9 parts of ammonium phosphate, and 14 parts of chitosan parts, 15 parts of corn stalks, and 16 parts of α-cyclodextrin. Mix the powders of the above ingredients evenly to prepare the soil remediation agent.

Embodiment 2

[0057] (1) Ammonium dihydrogen phosphate, cellulose with a molecular weight distribution of 80000-120000, calcium sulfite, bentonite, montmorillonite, ammonium phosphate, chitosan with a molecular weight distribution of 1200-3500, corn stalks, α-ring Dextrin, crush the above ingredients into powder;

[0058] (2) Take 13 parts by weight of ammonium dihydrogen phosphate, 18 parts of cellulose, 6 parts of calcium sulfite, 10 parts of bentonite, 7 parts of montmorillonite, 9 parts of ammonium phosphate, and 14 parts of chitosan parts, 15 parts of corn stalks, and 16 parts of α-cyclodextrin. Mix the powders of the above ingredients evenly to prepare the soil remediation agent.

Embodiment 3

[0060] (1) Ammonium dihydrogen phosphate, cellulose with a molecular weight distribution of 80000-120000, calcium sulfite, bentonite, montmorillonite, ammonium phosphate, chitosan with a molecular weight distribution of 1200-3500, corn stalks, α-ring Dextrin, crush the above ingredients into powder;

[0061](2) Take 10 parts by weight of ammonium dihydrogen phosphate, 15 parts of cellulose, 7 parts of calcium sulfite, 11 parts of bentonite, 5 parts of montmorillonite, 9 parts of ammonium phosphate, and 13 parts of chitosan parts, 18 parts of corn stalks, and 17 parts of α-cyclodextrin. Mix the powders of the above ingredients evenly to prepare the soil remediation agent.

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Abstract

The invention belongs to the field of soil restoration, and discloses a soil restoration agent capable of reducing chromium, zinc and copper pollution. The soil restoration agent is characterized by comprising the following components in parts by weight: 6-19 parts of diammonium hydrogen phosphate, 12-25 parts of cellulose, 2-9 parts of calcium sulfite, 4-15 parts of bentonite, 3-10 parts of montmorillonite and 5-13 parts of ammonium phosphate. A preparation method comprises the following steps of: respectively taking diammonium hydrogen phosphate, cellulose, calcium sulfite, bentonite, montmorillonite and ammonium phosphate, and crushing the components into powder; (2) taking the components in parts by weight: 6-19 parts of diammonium hydrogen phosphate, 12-25 parts of cellulose, 2-9 parts of calcium sulfite, 4-15 parts of bentonite, 3-10 parts of montmorillonite and 5-13 parts of ammonium phosphate, and uniformly mixing the powder of the components to prepare the soil restoration agent. The prepared soil restoration agent has good effects when being used for restoring soil with the chromium, zinc and copper pollution.

Description

technical field [0001] The invention belongs to the field of soil remediation, and relates to a soil remediation agent and a preparation method thereof, in particular to a soil remediation agent for reducing chromium, zinc and copper pollution and a preparation method thereof. Background technique [0002] Soil pollution can be divided into inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acids, alkalis, heavy metals, salts, radioactive elements, etc. Organic pollutants include pesticides, phenols, cyanides, petroleum, polycyclic aromatic hydrocarbons, and harmful microorganisms brought by urban sewage, sludge, and manure. With the development of urbanization and industry, heavy metal-heavy metal, organic pollutant-organic pollutant, organic pollutant-heavy metal compound pollution in urban soil is very common. [0003] In terms of soil remediation technology, after more than ten years of global research and application, a contaminated soil ...

Claims

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Application Information

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IPC IPC(8): C09K17/40
Inventor 程功弼许滢
Owner JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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