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Novel environment-friendly soil heavy metal restoration agent and preparation method thereof

A technology of heavy metals and remediation agents, applied in soil conditioning materials, chemical instruments and methods, applications, etc., can solve problems such as secondary pollution, and achieve the effects of saving energy, improving the efficiency of organic fertilizers, and removing efficiently.

Inactive Publication Date: 2016-09-28
慎叶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an environment-friendly soil remediation agent and its preparation method, to overcome the deficiency of "secondary pollution" existing soil remediation agents

Method used

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  • Novel environment-friendly soil heavy metal restoration agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Novel environment-friendly soil heavy metal remediation agent comprises the following components by weight:

[0027] Carboxymethyl chitosan: 10 parts (number average molecular weight 8000); biological activated carbon: 10 parts;

[0028] Second-generation calcium phosphate: 5 parts; Potassium nitrate: 5 parts; Polyacrylamide: 3 parts;

[0029] Lactic acid: 8 parts; carboxymethyl cellulose: 3 parts.

Embodiment 2

[0031] Novel environment-friendly soil heavy metal remediation agent comprises the following components by weight:

[0032] Carboxymethyl chitosan: 12 parts (number average molecular weight 9000); biological activated carbon: 12 parts;

[0033] Tetracalcium phosphate: 8 parts; Ammonium nitrate: 8 parts; Polyaluminum chloride: 4 parts;

[0034] Beta-Hydroxybutyric Acid: 11 parts; Carboxymethyl Cellulose: 4 parts.

Embodiment 3

[0036] Novel environment-friendly soil heavy metal remediation agent comprises the following components by weight:

[0037] Carboxymethyl chitosan: 15 parts (number average molecular weight 10000); biological activated carbon: 15 parts;

[0038] α-tricalcium phosphate: 10 parts; calcium nitrate: 10 parts; polyferric chloride: 5 parts;

[0039] Tartaric acid: 15 parts; carboxymethyl cellulose: 5 parts.

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Abstract

The invention discloses a novel environment-friendly soil heavy metal restoration agent which comprises the following components in parts by weight: 10-15 parts of carboxymethyl chitosan, 10-15 parts of bioactivated carbon, 5-10 parts of citrate-soluble phosphorus-containing compound, 5-10 parts of nitro-state nitrogen-containing compound, 3-5 parts of high-polymer flocculation compound, 8-15 parts of hydroxycarboxylic acid compound and 3-5 parts of carboxymethyl cellulose. The environment-friendly soil heavy metal restoration agent overcomes the defect of low heavy metal removal efficiency and insufficient nitrogen and phosphorus nutrients after heavy metal removal in the existing soil restoration agent.

Description

technical field [0001] The invention relates to the field of environmental protection. More specifically, the present invention relates to a novel environment-friendly soil heavy metal remediation agent and a preparation method thereof. Background technique [0002] With the rapid development of modern industry and agriculture, the situation of soil heavy metal pollution is becoming more and more serious. There are many treatment methods, and bioremediation is attracting attention because of its incomparable advantages, and its application prospects are broad. However, there are still many problems to be solved in bioremediation, such as the mechanism of heavy metal uptake by hyperaccumulative plants has not been clearly studied. All of these hinder the large-scale application of bioremediation. [0003] Soil heavy metal pollution refers to the pollution caused by excessive accumulation of heavy metals in soil. Heavy metals in contaminated soil include elements with sign...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C09K17/40C09K101/00C05G3/80
CPCC05B7/00C05G3/00C05G3/80C09K17/40C09K2101/00C05C1/00C05D9/00C05F11/00C05C5/02C05C5/04C05D9/02
Inventor 慎叶
Owner 慎叶