A kind of eco-environmental protection soil remediation method

A soil remediation and soil remediation agent technology, applied in the field of ecological and environmental protection soil remediation, can solve the problems of high effective state concentration and difficult to meet high-quality soil, etc., to improve the modification effect, improve adsorption and fixation, and widen spacing. Effect

Active Publication Date: 2019-11-26
中植同汇集团有限公司
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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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  • A kind of eco-environmental protection soil remediation method
  • A kind of eco-environmental protection soil remediation method
  • A kind of eco-environmental protection soil remediation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An ecological environment-friendly soil remediation method, characterized in that it includes the following steps: evenly sprinkle the soil remediation agent on the surface of the heavy metal-contaminated soil, then perform soil plowing to fully mix the soil remediation agent and the heavy metal-contaminated soil, and complete the balance in 6 days Soil heavy metal remediation process;

[0025] In parts by weight, the soil remediation agent is mixed with 55 parts of modified hectorite, 20 parts of organic fertilizer, 10 parts of humic acid and 1 part of microbial agent, and the modified hectorite is prepared by the following method : Calcining the hectorite, then adding a mixed modifier to stir the reaction, carrying out microwave irradiation treatment while stirring, and finally grinding it into granules or powder, the stirring reaction is carried out at a temperature of 280° C. for 1 hour;

[0026] The consumption of described mixed modifying agent accounts for the 10...

Embodiment 2

[0030] An ecological environment-friendly soil remediation method, characterized in that: comprising the following steps: evenly sprinkle the soil remediation agent on the surface of the heavy metal-contaminated soil, and then perform soil plowing to fully mix the soil remediation agent and the heavy metal-contaminated soil, and complete the balance within 7 days Soil heavy metal remediation process;

[0031] In parts by weight, the soil remediation agent is mixed with 60 parts of modified hectorite, 25 parts of organic fertilizer, 15 parts of humic acid and 2 parts of microbial agent, and the modified hectorite is prepared by the following method : Calcining the hectorite, then adding a mixed modifier to stir the reaction, carrying out microwave irradiation treatment while stirring, and finally grinding it into granules or powder, the stirring reaction is carried out at a temperature of 300° C. for 1 hour;

[0032] The consumption of described mixed modifying agent accounts f...

Embodiment 3

[0036] An ecological environment-friendly soil repair method, characterized in that: comprising the following steps: evenly sprinkle the soil repair agent on the surface of the heavy metal-contaminated soil, and then perform soil plowing to fully mix the soil repair agent and the heavy metal-contaminated soil, and complete the balance in 8 days Soil heavy metal remediation process;

[0037] In parts by weight, the soil remediation agent is mixed with 65 parts of modified hectorite, 30 parts of organic fertilizer, 20 parts of humic acid and 3 parts of microbial agent, and the modified hectorite is prepared by the following method : Calcining the hectorite, then adding a mixed modifier to stir the reaction, carrying out microwave irradiation treatment while stirring, and finally grinding it into granules or powder, the stirring reaction is carried out at a temperature of 320° C. for 1 hour;

[0038] The consumption of described mixed modifying agent accounts for the 10wt% of mod...

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Abstract

The invention relates to an ecological environment-friendly soil remediation method. The ecological environment-friendly soil remediation method comprises the following steps: uniformly scattering a soil remediation agent on the surface of heavy metal polluted soil; then carrying out soil ploughing to sufficiently and uniformly mix the soil remediation agent and the heavy metal polluted soil; balancing for 6 to 8 days to finish a soil heavy metal remediation process. The soil remediation agent is prepared by mixing the following components in parts by weight: 55 to 65 parts of modified hectorite, 20 to 30 parts of organic fertilizer, 10 to 20 parts of humic acid and 1 to 3 parts of a microbial agent. The soil remediation method involved in the invention is suitable for remediating the heavy metal polluted soil and has the advantages of low cost, ecological environmental protection, short remediation period, good remediation effect, high remediation efficiency and the like.

Description

technical field [0001] The invention relates to an ecological environment-friendly soil restoration method. Background technique [0002] With soils serving as the foundation of natural and agricultural ecosystems, the level of toxic metal pollution in the biosphere has increased dramatically since the Industrial Revolution. 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 the 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 rocks and soils, and their content is usually low, and they are not toxic to the environment, animals and plants. Affected by human facto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/08B09C1/10C09K17/40
CPCB09C1/08B09C1/10B09C2101/00C09K17/40
Inventor 不公告发明人
Owner 中植同汇集团有限公司
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