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Heavy metal polluted soil remediation agent

A technology of polluted soil and remediation agent, applied in the field of soil pollution remediation, can solve problems such as soil heavy metal pollution that cannot be effectively solved, achieve good biocompatibility and biodegradability, improve adsorption effect, and increase the effect of specific surface area

Active Publication Date: 2020-01-03
福建格瑞恩工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, aiming at the above content, the present invention provides a heavy metal-contaminated soil remediation agent, which solves the limitations of various soil remediation techniques in the prior art and cannot effectively solve the problem of soil heavy metal pollution.

Method used

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Examples

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Embodiment 1

[0021] A heavy metal contaminated soil restoration agent, comprising the following raw materials in parts by weight: 40 parts of modified vermiculite, 4.5 parts of sodium 1,3,6-naphthalene trisulfonate, 10 parts of biochemical potassium fulvic acid, 5 parts of succinic acid, desulfurization 0.6 parts of Bacillus subtilis, 0.8 parts of discoid spiral cyanobacteria, 0.3 parts of white rot fungi, including hydroxypropyltrimethylammonium chloride chitosan, 1,3,6-sodium naphthalenetrisulfonate, and biochemical fulvic acid The particle diameters of potassium and succinic acid are both controlled at 80-150 mesh.

[0022] The preparation method of the modified vermiculite is as follows: heat-treat the vermiculite at 600°C for 8 hours, then add the heat-treated vermiculite into the ethanol solution, ultrasonicate for 20 minutes, then add lactic acid, hydroxypropyl trimethyl chloride Ammonium chitosan, titanate coupling agent, stirred and reacted at 65°C for 8 hours, after the reaction ...

Embodiment 2

[0025] A heavy metal contaminated soil restoration agent, comprising the following raw materials in parts by weight: 50 parts of modified vermiculite, 6 parts of sodium 1,3,6-naphthalene trisulfonate, 6 parts of biochemical potassium fulvic acid, 7 parts of succinic acid, desulfurization 0.8 parts of Bacillus subtilis, 0.3 parts of discoid spiral cyanobacteria, 0.5 parts of white rot fungi, including hydroxypropyltrimethylammonium chloride chitosan, 1,3,6-sodium naphthalenetrisulfonate, biochemical fulvic acid The particle diameters of potassium and succinic acid are both controlled at 80-150 mesh.

[0026] The preparation method of the modified vermiculite is as follows: heat-treat the vermiculite at 700° C. for 6 hours, then add the heat-treated vermiculite into the ethanol solution, ultrasonicate for 30 minutes, then add lactic acid, hydroxypropyl trimethyl chloride Ammonium chitosan, titanate coupling agent, stirred and reacted at 70°C for 6h, suction filtered after the re...

Embodiment 3

[0029] A heavy metal contaminated soil restoration agent, comprising the following raw materials in parts by weight: 60 parts of modified vermiculite, 3 parts of sodium 1,3,6-naphthalene trisulfonate, 8 parts of biochemical potassium fulvic acid, 10 parts of succinic acid, desulfurization 0.3 parts of Bacillus subtilis, 0.5 parts of discoid spiral cyanobacteria, 0.8 parts of white rot fungi, including hydroxypropyltrimethylammonium chloride chitosan, 1,3,6-sodium naphthalenetrisulfonate, and biochemical fulvic acid The particle diameters of potassium and succinic acid are both controlled at 80-150 mesh.

[0030]The preparation method of the modified vermiculite is as follows: heat-treat the vermiculite at 800° C. for 4 hours, then add the heat-treated vermiculite into the ethanol solution, ultrasonicate for 40 minutes, then add lactic acid, hydroxypropyl trimethyl chloride Ammonium chitosan, titanate coupling agent, stirred and reacted at 75°C for 5 hours, suction filtered aft...

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Abstract

The invention relates to the technical field of soil pollution remediation, provides a heavy metal polluted soil remediation agent, and solves the problem in the prior art that various soil remediation technologies have certain limitations, and cannot effectively solve soil heavy metal pollution. The remediation agent comprises the following raw materials in parts by weight: 40-60 parts of modified vermiculite, 3-6 parts of trisodium naphthalene-1,3,6-trisulphonate, 6-10 parts of biochemical fulvic acid potassium, 5-10 parts of succinic acid, 0.3-0.8 part of desulfurization bacillus subtilis,0.3-0.8 part of spirulina platensis, and 0.3-0.8 part of white rot fungi.

Description

technical field [0001] The invention relates to the technical field of soil pollution remediation, in particular to a heavy metal contaminated soil remediation agent. Background technique [0002] Soil is an important part of the earth's land, and it is also the material basis for the survival and development of human beings. With the rapid development of modern industry and agriculture, the content of heavy metals in the soil has seriously exceeded the standard, which has caused the deterioration of the soil ecological environment. There are many reasons for soil heavy metal pollution, such as waste gas, waste water, and waste residues discharged from the production and operation activities of industrial and mining enterprises, large-scale use of chemical fertilizers and pesticides in agricultural production, and random discarding of domestic garbage, etc. Soil heavy metal pollution will not only reduce the yield and quality of agricultural products, but some heavy metal i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00
CPCC09K17/40C09K2101/00
Inventor 吴明森
Owner 福建格瑞恩工程设计有限公司
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