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Soil pollution remediation reagent

A remediation reagent and soil pollution technology, applied in the field of mine soil remediation materials, can solve the problems of unsatisfactory soil remediation effect, easy to leave secondary pollution, long remediation cycle, etc. short cycle effect

Inactive Publication Date: 2021-05-11
甘肃省地质矿产勘查开发局第三地质矿产勘查院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of complex operation, high cost, easy to leave secondary pollution, unsatisfactory remediation effect and long remediation period of existing soil remediation agents in traditional soil pollution treatment methods, and proposes a soil pollution Repair Reagent

Method used

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Experimental program
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Effect test

Embodiment 1

[0019] A soil pollution remediation reagent proposed by the present invention comprises the following raw materials in parts by weight: 40 parts of polyacrylamide, 20 parts of modified diatomite, 18 parts of quicklime, 4 parts of sodium humate, potassium ethyl dithiocarbonate 6 parts, 8 parts of disodium edetate, 0.48 parts of water retaining agent;

[0020] Wherein, the modified diatomite is prepared by the following method: Weigh diatomite, cyclodextrin, epoxy linseed oil and o-phenanthroline respectively according to the mass ratio of 20:1:3:0.2, and the specific gravity Diatomaceous earth, epoxy linseed oil and o-phenanthroline were mixed, and ethanol with 6 times the mass of diatomite was added, mixed and stirred at 60°C for 20min, cooled to room temperature, added cyclodextrin of the specific gravity, and continued to stir After 30 minutes, concentrate under reduced pressure, dry in vacuum at 50°C for 2 hours, and cool to room temperature to obtain modified diatomite;

...

Embodiment 2

[0024] A soil pollution remediation reagent proposed by the present invention comprises the following raw materials in parts by weight: 45 parts of polyacrylamide, 25 parts of modified diatomite, 16 parts of quicklime, 6 parts of sodium humate, potassium ethyl dithiocarbonate 4 parts, 6 parts of disodium edetate, 0.32 parts of water retaining agent;

[0025] Wherein, the modified diatomite is prepared by the following method: Weigh diatomite, cyclodextrin, epoxy linseed oil and o-phenanthroline respectively according to the mass ratio of 23:1:4:0.5, and the specific gravity Diatomaceous earth, epoxy linseed oil and o-phenanthroline were mixed, and ethanol with 5 times the mass of diatomite was added, mixed and stirred at 60°C for 25min, cooled to room temperature, added cyclodextrin of the specific gravity, and continued to stir 30min, then concentrated under reduced pressure, dried in vacuum at 55°C for 1.5h, and cooled to room temperature to obtain modified diatomite;

[00...

Embodiment 3

[0029] A soil pollution remediation reagent proposed by the present invention comprises the following raw materials in parts by weight: 50 parts of polyacrylamide, 30 parts of modified diatomite, 14 parts of quicklime, 8 parts of sodium humate, potassium ethyl dithiocarbonate 3 parts, 4 parts of disodium edetate, 0.26 parts of water retaining agent;

[0030] Wherein, the modified diatomite is prepared by the following method: Weigh diatomite, cyclodextrin, epoxy linseed oil and o-phenanthroline respectively according to the mass ratio of 26:1:6:0.7, and the specific gravity Diatomaceous earth, epoxy linseed oil and o-phenanthroline were mixed, and ethanol with 3 times the mass of diatomite was added, mixed and stirred at 60°C for 30min, cooled to room temperature, added cyclodextrin of the specific gravity, and continued to stir After 30 minutes, concentrate under reduced pressure, dry in vacuum at 55°C for 1 hour, and cool to room temperature to obtain modified diatomite;

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Abstract

The invention provides a soil pollution remediation reagent. The soil pollution remediation reagent is prepared from the following raw materials in parts by weight: 40-50 parts of polyacrylamide, 20-30 parts of modified diatomite, 14-18 parts of quick lime, 4-8 parts of sodium humate, 3-6 parts of ethyl dithiopotassium carbonate, 4-8 parts of ethylene diamine tetraacetic acid disodium salt and 0.26-0.48 parts of a water-retaining agent. The soil pollution remediation reagent provided by the invention is simple to operate, convenient to carry and good in heavy metal treatment effect, can improve soil organic matters and improve the absorption capacity of soil to nutrients while treating heavy metals, avoids the phenomenon of soil hardening, can ensure the content of water in soil and normal growth of crops, has a good remediation effect on soil around mineral products and is short in remediation period, and the preparation process of the remediation reagent is simple.

Description

technical field [0001] The invention relates to the technical field of mine soil remediation materials, in particular to a soil pollution remediation reagent. Background technique [0002] Mineral resources are precious wealth endowed by nature to human beings, and are the material basis for social development and human survival. Early human society was named after mineral products, such as the Stone Age, Bronze Age, Iron Age, etc., which fully proves that minerals are important for the development of human society. huge impact. With the advancement of society, the types and quantities of minerals used by humans have increased dramatically. However, the mining of mineral resources has caused serious pollution to the surrounding soil, the most serious of which is heavy metal pollution. Heavy metal pollution has greatly reduced soil quality and seriously degraded the ecosystem, and soil heavy metal pollution will also affect the growth of crops around the mining area, as wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/00B09C1/08C01B33/12C09K101/00C09K107/00
CPCB09C1/00B09C1/08C01B33/12C09K17/40C09K2101/00C09K2107/00
Inventor 胡小耕王波马延龙齐建宏石雨心张军陈涛王滔
Owner 甘肃省地质矿产勘查开发局第三地质矿产勘查院
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