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Soil contamination remediation agent

A soil pollution and remediation agent technology, applied in the field of soil pollution remediation, to achieve the effects of reducing organic pollutants, reducing raw material costs, and improving the environment

Active Publication Date: 2019-01-15
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country started late in the research of soil heavy metal remediation technology. Although it has introduced, absorbed and digested a large number of foreign advanced remediation technologies, the particularity of domestic soil types, conditions and site pollution determines the need to develop more independent intellectual property rights. And practical restoration technology and equipment suitable for national conditions to promote the marketization and industrialization of soil environment restoration technology

Method used

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Examples

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Effect test

Embodiment 1

[0044] (1) Grind the phosphorite ore into particles with a particle size of 40 mesh, weigh the crushed phosphorite ore and heat it to 200°C, keep it warm for 1h, continue to heat up to 600°C, keep it warm for 2h, take it out, cool it and put it in a desiccator spare;

[0045] (2) Collect the monosodium glutamate fermentation tail liquid discharged from a certain factory, adjust the pH value to 6, concentrate, and when the volume is reduced to a solid content of 40%, then adopt the centrifugal spray drying method to produce dry solid powder with a particle size of 10 The target particles are ready for use;

[0046] (3) Collect chicken manure from a chicken farm, sprinkle 0.1% urea and 5% superphosphate into compost, and use a stick to make air holes in the heap, cover with plastic cloth to keep warm and keep fertilizer, and turn the heap once after 10 days of composting After stacking and retting for 60 days; then put the organic fertilizer on a sterile plastic film, spread it...

Embodiment 2

[0049] (1) Grind the phosphorite ore into particles with a particle size of 40 mesh, weigh the crushed phosphorite ore, heat it to 400°C, keep it warm for 2 hours, continue to heat up to 700°C, keep it warm for 1 hour, take it out, cool it and put it in a desiccator spare;

[0050] (2) Collect the monosodium glutamate fermentation tail liquid discharged from a certain factory, adjust the pH value to 8, concentrate, and when the volume is reduced to a solid content of 60%, then adopt the centrifugal spray drying method to produce dry solid powder with a particle size of 30 The target particles are ready for use;

[0051] (3) Collect chicken manure from a chicken farm, sprinkle 0.5% urea and 2% superphosphate into compost, and use a stick to make air holes in the pile, cover with plastic cloth to keep warm and keep fertilizer, and turn the pile once after 10 days of composting , after 90 days of stacking and retting; then put the organic fertilizer on a sterile plastic film, sp...

Embodiment 3

[0054] (1) Grind the phosphorite ore into particles with a particle size of 40 mesh, weigh the crushed phosphorite ore, heat it to 400°C, keep it warm for 2 hours, continue to heat up to 700°C, keep it warm for 1 hour, take it out, cool it and put it in a desiccator spare;

[0055] (2) Collect the monosodium glutamate fermentation tail liquid discharged from a certain factory, adjust the pH value to 8, concentrate, and when the volume is reduced to a solid content of 60%, then adopt the centrifugal spray drying method to produce dry solid powder with a particle size of 30 The target particles are ready for use;

[0056] (3) Collect chicken manure from a chicken farm, sprinkle 0.5% urea and 2% superphosphate into compost, and use a stick to make air holes in the pile, cover with plastic cloth to keep warm and keep fertilizer, and turn the pile once after 10 days of composting , after 90 days of stacking and retting; then put the organic fertilizer on a sterile plastic film, sp...

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Abstract

The invention specifically relates to a soil contamination remediation agent, belonging to the technical field of soil contamination remediation. The soil contamination remediation agent comprises polyacrylamide, sodium polyacrylate, fly ash, phosphate rock, monosodium glutamate fermentation tail liquid, humic acid, manganese sulfate, calcium hydroxyphosphate, a microbial agent, an organic fertilizer and the like. The invention also provides a preparation method of the soil contamination remediation agent. Since mixing is performed after pretreatment operations like heat treatment of kakoxene,fermentation and sterilization of the organic fertilizer and pulverization of the monosodium glutamate fermentation liquid, the prepared soil contamination remediation agent can fully utilize domestic and industrial waste, effectively adsorb and immobilize heavy metal pollutants, improve soil environment and enhance fertility; and the soil contamination remediation agent is an economic and environment-friendly remediation technology.

Description

technical field [0001] The invention belongs to the technical field of soil pollution restoration, and in particular relates to a soil pollution restoration agent. Background technique [0002] Soil pollution refers to that with the development of economy and society, various pollutants produced in the process of human industrial or agricultural production enter the soil environment and accumulate through different channels, eventually exceeding the self-purification capacity of the soil, changing the quality and function of the soil, and endangering humans and other organisms. phenomenon of survival and development. China is one of the countries with serious soil pollution in the world. According to the results of the 2014 National Soil Pollution Survey Bulletin, the total exceeding rate of soil in the country is 16.1%, and the overall situation is not optimistic. Among them, the number of agricultural land pollution exceeding the standard accounts for about 19% of the tot...

Claims

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Application Information

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IPC IPC(8): C05G3/04C09K17/40C09K101/00C05G3/80
CPCC05B1/02C09K17/40C09K2101/00C05G3/80C05B7/00C05B13/02C05C9/00C05D9/00C05D9/02C05F3/00C05F7/00C05F11/00C05F11/02C05F11/08
Inventor 魏源周民米屹东苏海磊陈海燕王凡凡朱元荣
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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