Environment-friendly remediation agent for heavy metal-contaminated soil

A soil remediation agent and heavy metal technology, applied in the field of soil remediation, can solve the problems of single applicable environment, inconvenient use, single function, etc., and achieve the effects of enhancing soil fertility, avoiding secondary pollution and protecting the ecological environment.

Inactive Publication Date: 2021-05-25
KUNMING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the defects of the prior art such as single function, inconvenient use, and single applicable environment, and provide an environment-friendly heavy metal soil remediation agent and its use method

Method used

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  • Environment-friendly remediation agent for heavy metal-contaminated soil
  • Environment-friendly remediation agent for heavy metal-contaminated soil
  • Environment-friendly remediation agent for heavy metal-contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see figure 1 , the present invention provides a technical solution: an environment-friendly heavy metal soil restoration agent, comprising the following raw material components in parts by weight:

[0036] Zeolite powder: 5 parts. Zeolite powder is made from zeolite minerals after crushing and grinding. Zeolite has strong adsorption, ion exchange, catalytic, acid and alkali resistance, radiation resistance, non-toxic, harmless and no residue. It has a significant effect on soil pollution control, improvement of soil barrenness, salinization, and solution of soil compaction;

[0037] Organic acid: 6 parts. The organic acid is one of citric acid, malic acid, tartaric acid, acetic acid, succinic acid and oxalic acid. Organic acids can increase the effectiveness and movement of inorganic nutrients in the soil through dissolution and complexation. sex;

[0038] Organic matter: 4 parts, organic matter is humic acid or organic fertilizer, among them, humic acid is humate con...

Embodiment 2

[0046] see figure 2 , the present invention provides a technical solution: an environment-friendly heavy metal soil restoration agent, comprising the following raw material components in parts by weight:

[0047] Zeolite powder: 7 parts. Zeolite powder is made from zeolite minerals after crushing and grinding. Zeolite has strong adsorption, ion exchange, catalytic, acid and alkali resistance, radiation resistance, non-toxic, harmless and no residue. It has a significant effect on soil pollution control, improvement of soil barrenness, salinization, and solution of soil compaction;

[0048] Organic acid: 7 parts. The organic acid is one of citric acid, malic acid, tartaric acid, acetic acid, succinic acid and oxalic acid. Organic acids can increase the effectiveness and movement of inorganic nutrients in the soil through dissolution and complexation. sex;

[0049] Organic matter: 6 parts, organic matter is humic acid or organic fertilizer, among them, humic acid is humate co...

Embodiment 3

[0057] see image 3 , the present invention provides a technical solution: an environment-friendly heavy metal soil restoration agent, comprising the following raw material components in parts by weight:

[0058] Zeolite powder: 10 parts, zeolite powder is made by crushing and grinding zeolite minerals. Zeolite has strong adsorption, ion exchange, catalytic, acid and alkali resistance, radiation resistance, non-toxic, harmless and no residue. It has a significant effect on soil pollution control, improvement of soil barrenness, salinization, and solution of soil compaction;

[0059] Organic acid: 8 parts. The organic acid is one of citric acid, malic acid, tartaric acid, acetic acid, succinic acid and oxalic acid. Organic acids can increase the effectiveness and movement of inorganic nutrients in the soil through dissolution and complexation. sex;

[0060] Organic matter: 8 parts, organic matter is humic acid or organic fertilizer, among them, humic acid is humate containing...

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Abstract

The invention discloses an environment-friendly remediation agent for heavy metal-contaminated soil. The remediation agent comprises the following raw material components in parts by weight: 5-10 parts of zeolite powder, 6-8 parts of organic acid, 4-8 parts of organic matters, 25-40 parts of animal manure, 6-12 parts of quick lime, 4-8 parts of powdered sulfur, 10-20 parts of nitrate, 5-15 parts of a phosphate fertilizer and 6-15 parts of organic compost. The environment-friendly remediation agent for heavy metal-contaminated soil can repair heavy metal-contaminated soil, effectively enhances soil fertility to improve the survival rate of plants after second ploughing of the soil, is environmentally friendly, does not contain other chemical substances harmful to soil, protects the ecological environment of the soil and effectively avoids the problems of biological activity reduction, secondary pollution and the like.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to an environment-friendly heavy metal soil restoration agent. Background technique [0002] Among the soil inorganic pollutants, heavy metals are more prominent, mainly because heavy metals cannot be decomposed by soil microorganisms, but are easy to accumulate and transform into more toxic methyl compounds, and some even accumulate in the human body at harmful concentrations through the food chain, seriously endangering human health. Heavy metal elements in soil mainly come from natural sources and human interference input. Among natural factors, soil parent material and soil-forming process have a great influence on soil heavy metal content, while among various human factors, soil heavy metal pollution caused by industry, agriculture and transportation accounts for a relatively high proportion. [0003] At present, most of the existing soil heavy metal remediation meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/80B09C1/08C09K17/40
CPCC05G3/00C05G3/80C05C5/00B09C1/08C09K17/40C05D3/02C05D9/00C05F3/00C05F11/02
Inventor 申亮漆静娴赵广吉田图霍然王帅崔景辉任冰洁马小茜
Owner KUNMING UNIV
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