Environment-friendly restoring agent for heavy metals in soil

A technology of heavy metals and remediation agents, applied in soil conditioning materials, applications, organic fertilizers, etc., can solve the problems of unable to supplement nutrients at the same time, unable to neutralize soil acidity, etc., to prevent the precipitation of heavy metal ions, reduce heavy metal activity, and restore soil activity. and the effect of fertility

Inactive Publication Date: 2018-07-27
HENAN INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot neutralize the acidity of the soil, prevent the precipitation of heavy metal ions in the soil, supplement the nutrients needed by crops at the same time, and activate the soil to prev

Method used

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  • Environment-friendly restoring agent for heavy metals in soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An environment-friendly soil heavy metal remediation agent is made of the following materials in parts by weight: 15 parts of carboxymethyl chitosan, 17 parts of polyacrylamide, 7 parts of polyaluminum chloride, 20 parts of polyaluminum ferric chloride, 14 parts of bentonite, 17 parts of sepiolite, 7 parts of calcium magnesium phosphate fertilizer, 28 parts of superphosphate, 20 parts of magnesium sulfate, 15 parts of sodium silicate, 13 parts of boric acid, 21 parts of borax, 28 parts of zinc sulfate, 11 parts of amino acid, 9 parts of humic acid, 13 parts of compound enzyme preparation, 4 parts of slash pine needles, 4 parts of Pseudomonas fluorescens powder, 7 parts of salt-tolerant yeast powder, and 10 parts of Schizosaccharomyces pombe powder.

[0025] A preparation method of an environment-friendly soil heavy metal restoration agent, characterized in that: comprising the following steps:

[0026] 1) Take 15 parts of carboxymethyl chitosan, 17 parts of polyacrylami...

Embodiment 2

[0034] An environment-friendly soil heavy metal remediation agent is made of the following materials in parts by weight: 28 parts of carboxymethyl chitosan, 31 parts of polyacrylamide, 19 parts of polyaluminum chloride, 39 parts of polyaluminum ferric chloride, 31 parts of bentonite, 28 parts of sepiolite, 11 parts of calcium magnesium phosphate fertilizer, 33 parts of superphosphate, 31 parts of magnesium sulfate, 27 parts of sodium silicate, 23 parts of boric acid, 31 parts of borax, 37 parts of zinc sulfate, 21 parts of amino acid, 14 parts of humic acid, 18 parts of compound enzyme preparation, 6 parts of slash pine needles, 6 parts of Pseudomonas fluorescens powder, 11 parts of salt-tolerant yeast powder, and 15 parts of Schizosaccharomyces pombe powder.

[0035]A preparation method of an environment-friendly soil heavy metal restoration agent, characterized in that: comprising the following steps:

[0036] 1) Get 28 parts of carboxymethyl chitosan, 31 parts of polyacryla...

Embodiment 3

[0044] An environment-friendly soil heavy metal remediation agent is made of the following materials in parts by weight: 20 parts of carboxymethyl chitosan, 21 parts of polyacrylamide, 13 parts of polyaluminum chloride, 25 parts of polyaluminum ferric chloride, 20 parts of bentonite, 22 parts of sepiolite, 8 parts of calcium magnesium phosphate fertilizer, 30 parts of superphosphate, 25 parts of magnesium sulfate, 22 parts of sodium silicate, 27 parts of boric acid, 25 parts of borax, 33 parts of zinc sulfate, 16 parts of amino acid, 12 parts of humic acid, 15 parts of compound enzyme preparation, 5 parts of slash pine needles, 5 parts of Pseudomonas fluorescens powder, 9 parts of salt-tolerant yeast powder, and 12 parts of Schizosaccharomyces pombe powder.

[0045] A preparation method of an environment-friendly soil heavy metal restoration agent, characterized in that: comprising the following steps:

[0046] 1) Take 20 parts of carboxymethyl chitosan, 21 parts of polyacryla...

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Abstract

The invention discloses an environmental-friendly restoring agent for heavy metals in soil. The environmental-friendly restoring agent is prepared from the following materials by weight: 15-28 parts of carboxymethyl chitosan, 17-31 parts of polyacrylamide,7-19 parts of polyaluminum chloride, 20-39 parts of polyaluminum ferric chloride, 14-31 parts of bentonite, 17-28 parts of sepiolite, 7-11 partsof calcium magnesium phosphate fertilizer, 28-33 parts of calcium superphosphate, 20-31 parts of magnesium sulfate, 15-27 parts of sodium silicate, 13-23 parts of boric acid, 21-31 parts of borax, 28-37 parts of zinc sulfate, 11-21 parts of amino acids, 9-14 parts of humic acid, 13-18 parts of a compound enzyme preparation, 4-6 parts of slash pine needles, 4-6 parts of Pseudomonas fluorescens powder, 7-11 parts of halotolerant yeast powder and 10-15 parts of Schizosaccharomyces pombe powder. The environmental-friendly restoring agent for heavy metals in soil can supplement a large amount of organic matters and nitrogen-phosphorus-potassium nutrient sources, reduce the activity of heavy metals in soil, improve the physical and chemical properties of soil, lower soil acidity, and achieve the purpose of restoring soil activity and fertility.

Description

technical field [0001] The invention specifically relates to the technical field of treatment and repair of heavy metal polluted soil, in particular to an environment-friendly soil heavy metal repair agent. Background technique [0002] Soil heavy metal pollution refers to human activities, the content of trace metal elements in the soil exceeds the background value, and the excessive content caused by excessive deposition is collectively referred to as soil heavy metal pollution. Heavy metal pollution in farmland soil is extremely harmful. Heavy metal pollution in soil will not only reduce crop yield and quality, but also enter the human body through the soil-plant system and the food chain, endangering human health and life safety. Soil heavy metal pollution has the characteristics of concealment, hazard lag, long-term nature, and bioaccumulation of heavy metals in the biological chain. These determine that if the understanding and treatment of soil heavy metal pollution a...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05F17/00C09K17/40C05G3/80
CPCC05B1/02C05F17/00C05G3/00C05G3/80C09K17/40C09K2101/00C09K2109/00C05B13/02C05C11/00C05D5/00C05D9/00C05D9/02C05F11/00C05F11/02C05F11/08Y02W30/40
Inventor 张安邦刘永卓黄文文张喜焕焦瑞锋李东方杨春林万艳芳
Owner HENAN INST OF SCI & TECH
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