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Heavy metal contaminated soil restoration agent

A technology of polluted soil and remediation agent, which is applied in the chemical industry, can solve the problems of ignoring the improvement of damaged soil, covering few types of heavy metals, and unstable repair effect, etc., to increase the capture coverage, enhance the full adsorption capacity, and improve the full adsorption capacity Effect

Inactive Publication Date: 2018-04-20
河南宗源环保科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] The existing heavy metal-contaminated soil remediation technology uses bentonite, perlite, and diatomite as remediation agents. Although it has a certain effect, there are few types of heavy metals covered, poor remediation ability, unstable remediation effect, and long remediation period. Defects such as improvement of damaged soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0016] Embodiment 2 is made from the following raw materials in weight percentage: 70% of medical stone ore, 7% of bentonite, 7% of perlite, 7% of diatomaceous earth, 8% of biochar, 1% of HEDTA chelating agent, and rooting plant regulator 1g / 1000kg.

Embodiment 3

[0017] Embodiment 3 is made from the following raw materials in weight percentage: medical stone raw ore 60%, bentonite 10%, perlite 10%, diatomite 10%, biochar 9.5, HEDTA chelating agent 0.5%, rooting plant regulator 3g / 1000kg.

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PUM

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Abstract

The invention belongs to the technical field of chemical engineering, and relates to soil contamination restoration agents, in particular to a heavy metal contaminated soil restoration agent. The heavy metal contaminated soil restoration agent is mainly characterized by being prepared from medical stone, bentonite, perlite, diatomite, charcoal, a chelating agent and an appropriate quantity of a plant growth regulator in parts by weight. Field experiments prove that, compared with the prior art, the heavy metal contaminated soil restoration agent has the significant advantages that the comprehensive restoration capacity is sufficient, stable and long-term for various heavy metal contaminated soil, the coverage is enlarged, the pertinence is exact, the restoration agent can supply nourishment nutrition to contaminated soil, regulate plant growth, and quicken improvement and restoration.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a soil pollution remediation agent, in particular to a heavy metal contaminated soil remediation agent. Background technique [0002] The land is the place where living things live, and the soil has the ability to accommodate and purify various wastes. When there are too many pollutants in the soil, which affects and exceeds the self-purification ability of the soil, and has harmful effects on biology, hygiene and epidemiology, it means that the soil is polluted, and the soil is polluted. Lead to crop yield reduction, and even lead to excessive pollution of agricultural products, thereby endangering human health. [0003] There are many reasons for soil pollution, such as the application of pollutants into farmland, industrial sludge, garbage, sewage, chemical fertilizers and pesticides containing heavy metals, etc. With economic development and social changes, industrial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/08C09K101/00
CPCC09K17/40B09C1/08C09K2101/00
Inventor 桂芳成李景吾王红侠韩乐伟冯居龙王晓丽李香丽朱玮钰梁皝燕康段金秋汤青阳
Owner 河南宗源环保科技有限公司
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