Soil activator for remediation of cadmium-contaminated soil as well as preparation method and application thereof

A technology of soil activator and cadmium-contaminated soil, which is applied in the field of soil pollution control and repair, can solve the problems of poor repair of cadmium-contaminated soil, less research on soil activator, and ineffective effects, etc., to improve repair efficiency, Easy to operate and easy to prepare

Inactive Publication Date: 2018-10-19
HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, agricultural and environmental protection workers do more research on soil conditioners, but less research on soil activators, so that in soil restoration and conditioner application, the effect is not obvious or the effect is single
[0004] The existing remediation technologies cannot remediate cadmium-contaminated soil very well

Method used

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  • Soil activator for remediation of cadmium-contaminated soil as well as preparation method and application thereof
  • Soil activator for remediation of cadmium-contaminated soil as well as preparation method and application thereof

Examples

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Effect test

preparation example Construction

[0043] The preparation method of the soil activator for repairing cadmium polluted soil comprises mixing phosphate fertilizer, phosphorus and potassium fertilizer, silicate, organic fertilizer and metal chelate to obtain the soil activator. By directly mixing these several components, the obtained soil activator is applied to cadmium-contaminated soil and used to plant soil remediation plants, so that the soil remediation plants can absorb and absorb cadmium-contaminated soil in the process of rapid growth. Cadmium heavy metal, so as to remediate cadmium-contaminated soil.

[0044] Optionally, the particle size of the soil activator is 0.2-0.3mm, and the particle size of the soil activator is small, which is beneficial to the absorption of soil remediation plants, and is also conducive to changing the form of heavy metals in cadmium-contaminated soil.

[0045] Optionally, application of a soil activator for remediation of cadmium-contaminated soil, soil activator used in conju...

Embodiment 1

[0047] According to mass percentage, 40% of phosphate fertilizer, 25% of phosphate and potassium fertilizer, 25% of silicate, 5% of organic fertilizer and 5% of metal chelate are mixed to obtain the soil activator.

Embodiment 2

[0049] According to mass percentage, mix 60% calcium magnesium phosphorus, 15% potassium dihydrogen phosphate, 15% silicon calcium fertilizer, 5% humic acid and 5% silicon chelate to obtain a particle size of 0.2mm Soil Activator.

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Abstract

The invention provides a soil activator for remediation of cadmium-contaminated soil as well as a preparation method and application thereof, and belongs to the technical field of soil pollution control and remediation. The soil activator is used in cooperation with soil remediation plants and is prepared from the following components in percentage by mass: 40-60% of phosphate fertilizer, 15-25% of phosphorus-potassium fertilizer, 15-25% of silicate, 1-5% of organic fertilizer and 1-5% of metallo-chelate. The preparation method for the soil activator is characterized in that the phosphate fertilizer, the phosphorus-potassium fertilizer, the silicate, the organic fertilizer and the metallo-chelate are mixed so as to obtain the soil activator. The soil activator is used in cooperation with sedum alfredii hance plants. The soil activator prepared through the method is used in cooperation with the sedum alfredii hance plants, so that cadmium metal in the soil can be effectively adsorbed, and remediation can be carried out on the soil contaminated by cadmium.

Description

technical field [0001] The invention relates to the technical field of soil pollution control and repair, in particular to a soil activator for repairing cadmium-contaminated soil, its preparation method and its application. Background technique [0002] Cadmium is a harmful element that harms the growth and development of plants. Excessive cadmium in the soil will cause obvious harm to the growth and development of plants. Studies have shown that cadmium stress will destroy the chlorophyll structure of the leaves, reduce the chlorophyll content, and make the leaves turn yellow. Symptoms of iron deficiency. When the leaves are injured, the plants grow slowly, the plants are short, and the root system is inhibited, causing growth disorders, reduced yields, and excessive cadmium concentrations can cause plant death. The impact of cadmium stress in soil on plant metabolism is more significant. The stress causes a sharp increase in active oxygen free radicals in plants. When t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G5/00C05G3/80
CPCC05B7/00C05G3/80C05G5/12C05B13/02C05B17/00C05C7/00C05D1/00C05D3/00C05D3/02C05D5/00C05D9/00C05D9/02C05F11/00C05F11/02C05G3/00
Inventor 胡志鑫曾睿杨波刘茗杨攀唐传祥
Owner HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECH
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