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A stabilizer for in-situ remediation of heavy metal pollution in soil and its application

An in-situ remediation and heavy metal technology, applied in the field of contaminated soil remediation, can solve problems such as soil heavy metal pollution

Active Publication Date: 2020-12-29
HENAN ACAD OF SCI INST OF BIOLOGY LIABILITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a stabilizer and its application for in-situ remediation of heavy metal pollution in soil, which can effectively solve the problem of heavy metal pollution in soil

Method used

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  • A stabilizer for in-situ remediation of heavy metal pollution in soil and its application
  • A stabilizer for in-situ remediation of heavy metal pollution in soil and its application
  • A stabilizer for in-situ remediation of heavy metal pollution in soil and its application

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Embodiment 1

[0018] The present invention is a stabilizer for in-situ restoration of soil heavy metal pollution. The stabilizer is made of the following raw materials in parts by weight: 15 parts of modified edible fungus slag biochar powder, 30 parts of cow dung biochar powder, and montmorillonite powder 5 parts, lime powder 15 parts and phosphate rock powder 12 parts are mixed evenly.

Embodiment 2

[0020] The present invention is a stabilizer for in-situ restoration of soil heavy metal pollution. The stabilizer is made of the following raw materials in parts by weight: 20 parts of modified edible fungus slag biochar powder, 25 parts of cow dung biochar powder, and montmorillonite powder 8 parts, 12 parts of lime powder and 15 parts of phosphate rock powder are evenly mixed.

Embodiment 3

[0022] The present invention is a stabilizer for in-situ restoration of soil heavy metal pollution. The stabilizer is made of the following raw materials in parts by weight: 25 parts of modified edible fungus slag biochar powder, 20 parts of cow dung biochar powder, and montmorillonite powder 5 parts, lime powder 10 parts and phosphate rock powder 20 parts are mixed evenly.

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Abstract

The invention relates to a stabilizer for in-situ restoration of soil heavy metal pollution and its application, which can effectively solve the problem of soil heavy metal pollution. The technical solution is that the stabilizer is made of the following raw materials in parts by weight: modified edible fungi 15-25 parts of slag biochar powder, 20-30 parts of cow dung bio-char powder, 5-10 parts of montmorillonite powder, 10-15 parts of lime powder and 10-20 parts of phosphate rock powder are uniformly mixed; the invention has abundant raw materials , low cost, realize in-situ stabilization and restoration of heavy metal contaminated soil, ensure crop safety, improve soil water and fertilizer retention capacity, improve soil microbial activity, increase soil nutrition, improve soil properties, increase soil microbial diversity, and reduce heavy metal pollution in farmland Restoration and agricultural development have great significance and urgency.

Description

technical field [0001] The invention relates to contaminated soil remediation, in particular to a stabilizer for in-situ remediation of soil heavy metal pollution and its application. Background technique [0002] In recent years, with the acceleration of urbanization and industrialization and the development of agricultural intensification, the pollution of heavy metals in my country's soil has become increasingly serious. In 2014, the "National Soil Pollution Survey Bulletin" published by the Ministry of Environmental Protection and the Ministry of Land and Resources pointed out that the total exceeding rate of soil in the country was 16.1%, and the pollution type was mainly inorganic, including cadmium, mercury, arsenic, copper, The over-standard rates of lead, chromium, zinc, and nickel 8 inorganic pollutants were 7.0%, 1.6%, 2.7%, 2.1%, 1.5%, 1.1%, 0.9%, and 4.8%, respectively. Heavy metal pollution in farmland is very harmful. First, excessive heavy metal elements in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40B09C1/08
CPCB09C1/08B09C2101/00C09K17/40
Inventor 杜志敏甄静杨文玲雷高王继雯周伏忠张秀江刘德海李亮亮刁文涛王一雯王佰涛权淑静李珊珊陈国参
Owner HENAN ACAD OF SCI INST OF BIOLOGY LIABILITY