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Ecological and environment-friendly soil remedying agent

A soil remediation agent and environmental protection technology, which is applied in the restoration of polluted soil, soil conditioning materials, organic fertilizers, etc., can solve the problems of difficult to meet high-quality soil and high effective concentration, so as to improve adsorption and immobilization, and improve Modification effect, effect of widening the distance

Active Publication Date: 2019-07-19
河北田加力生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problem that the effective state concentration of soil cadmium is still too large after being treated with soil remediation agent in the prior art, and it is difficult to meet the requirements of high-quality soil, the present invention proposes the following technical scheme:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An ecological and environmentally friendly soil remediation agent, in parts by weight, the soil remediation agent is composed of 55 parts of modified hectorite, 20 parts of organic fertilizer, 10 parts of humic acid, and 1 part of microbial agent. Hectorite is prepared by the following method: calcining the hectorite, then adding a mixed modifier and stirring the reaction, microwave irradiation treatment while stirring, and finally grinding into particles or powder. The stirring reaction is at a temperature of 280°C. Execute under one hour;

[0024] The amount of the mixed modifier accounts for 10wt% of the modified hectorite. The mixed modifier is composed of calcium polysulfide and modifier I in a mass ratio of 2:1. The structural formula of the modifier I as follows:

[0025]

[0026] Wherein, the microwave irradiation power is 750W, the organic fertilizer is chicken manure, the microbial agent is Bacillus, and the particle size of the modified hectorite is between 150 m...

Embodiment 2

[0028] An ecological and environmentally friendly soil remediation agent, in parts by weight, the soil remediation agent is mixed by 60 parts of modified hectorite, 25 parts of organic fertilizer, 15 parts of humic acid and 2 parts of microbial inoculants. Hectorite is prepared by the following method: calcining the hectorite, then adding a mixed modifier and stirring the reaction, microwave irradiation treatment while stirring, and finally grinding into particles or powder, the stirring reaction is at a temperature of 300°C Execute under one hour;

[0029] The amount of the mixed modifier accounts for 10wt% of the modified hectorite. The mixed modifier is composed of calcium polysulfide and modifier I in a mass ratio of 2:1. The structural formula of the modifier I as follows:

[0030]

[0031] Wherein, the microwave irradiation power is 800W, the organic fertilizer is pig manure, the microbial agent is Bacillus, and the particle size of the modified hectorite is between 200 mesh...

Embodiment 3

[0033] An ecological and environmentally friendly soil remediation agent, in parts by weight, the soil remediation agent is made up of 65 parts of modified hectorite, 30 parts of organic fertilizer, 20 parts of humic acid and 3 parts of microbial agents. Hectorite is prepared by the following method: calcining the hectorite, then adding a mixed modifier and stirring reaction, microwave irradiation treatment while stirring, and finally grinding into particles or powder, the stirring reaction is at a temperature of 320°C Execute under one hour;

[0034] The amount of the mixed modifier accounts for 10wt% of the modified hectorite. The mixed modifier is composed of calcium polysulfide and modifier I in a mass ratio of 2:1. The structural formula of the modifier I as follows:

[0035]

[0036] Wherein, the microwave irradiation power is 850W, the organic fertilizer is cow dung, the microbial agent is Bacillus, and the particle size of the modified hectorite is between 250 mesh.

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Abstract

The invention relates to an ecological and environment-friendly soil remedying agent. The soil remedying agent is formed by mixing 55-65 parts of modified hectorite, 20-30 parts of an organic fertilizer, 10-20 parts of humic acid and 1-3 parts of a microbial agent by weight, wherein the modified hectorite is prepared by a method comprising the following steps: calcinating hectorite, then adding amixed modifier, reacting while stirring, performing microwave irradiation treatment while stirring, and finally grinding into granules or powder. The soil remedying agent is applicable to remediationof heavy metal-contaminated soil, and has the advantages of low cost, ecological protection, a short remedying cycle, a good remedying effect, high remedying efficiency and the like.

Description

Technical field [0001] The invention relates to an ecological environment-friendly soil repair agent. Background technique [0002] With soil as the foundation of natural and agricultural ecosystems, since the Industrial Revolution, the content of toxic metal pollution in the biosphere has increased dramatically. Soil heavy metal pollution refers to the phenomenon that human activities bring heavy metal substances into the soil, causing the content of heavy metals in the soil to be significantly higher than its natural background content, destroying the ecosystem, and deteriorating environmental quality. The sources of heavy metals in soil are divided into natural sources and man-made sources, of which man-made factors account for the main part. Among natural sources, heavy metals mainly come from the natural weathering of the rock formation process, and their content is usually low, and they are not toxic to the environment, animals and plants. Affected by human factors, one o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/08
CPCB09C1/08C09K17/40
Inventor 不公告发明人
Owner 河北田加力生物科技股份有限公司
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