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Soil remediation agent as well as preparation method and application thereof

A technology of soil remediation agent and high-alumina bauxite, which is applied in the field of environmental governance, can solve the problems of reducing the repair cycle and failing to guarantee the repair effect, and achieve the effect of reducing the repair cycle, good repair effect and reducing migration

Pending Publication Date: 2020-12-18
杨剑飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a soil remediation agent to solve the problem that the existing soil remediation agents for mercury-contaminated soil treatment in the above background technology cannot reduce the repair cycle while ensuring the repair effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A soil restoration agent, comprising the following raw materials: 40 kilograms of phosphogypsum, 15 kilograms of caustic soda, 32 kilograms of basic slag, 6 kilograms of calcium-based bentonite, 4 kilograms of high alumina bauxite, 8 kilograms of white boronite, modified vermiculite 80 kg, and the right amount of water. Wherein, the modified vermiculite is prepared by crushing the vermiculite, filling it with liquid nitrogen and drying it, then mixing it with polypropylene glycol, butyl titanate and sulfuric acid (concentrated sulfuric acid with a concentration of 98wt%), and then calcining. have to. Specifically, the preparation method of the modified vermiculite is: according to the mass ratio of vermiculite, polypropylene glycol, butyl titanate and sulfuric acid of 9:7:0.5:0.5, respectively weigh vermiculite, polypropylene glycol, titanium Butyl acid and sulfuric acid, crush the weighed vermiculite to 100 mesh, add water for ultrasonic treatment (ultrasonic frequenc...

Embodiment 2

[0035]A soil remediation agent, including the following raw materials: 80 kg of phosphogypsum, 40 kg of caustic soda, 48 kg of alkaline slag, 20 kg of calcium-based bentonite, 10 kg of high alumina bauxite, 18 kg of white boronite, modified vermiculite 160 kg, and the right amount of water. Wherein, the modified vermiculite is prepared by crushing the vermiculite, filling it with liquid nitrogen and drying it, then mixing it with polypropylene glycol, butyl titanate and sulfuric acid (concentrated sulfuric acid with a concentration of 98wt%), and then calcining. have to. Specifically, the preparation method of the modified vermiculite is: according to the mass ratio of vermiculite, polypropylene glycol, butyl titanate and sulfuric acid to 20:10:2:2, respectively weigh vermiculite, polypropylene glycol, titanium Butyl acid and sulfuric acid, crush the weighed vermiculite to 400 mesh, add water to carry out ultrasonic treatment (ultrasonic frequency is 60kHz, ultrasonic power i...

Embodiment 3

[0041] A soil remediation agent, including the following raw materials: 56 kg of phosphogypsum, 18 kg of caustic soda, 38 kg of basic slag, 8 kg of calcium-based bentonite, 6 kg of high alumina bauxite, 10 kg of white boronite, modified vermiculite 100 kg, and the right amount of water. Wherein, the modified vermiculite is prepared by crushing the vermiculite, filling it with liquid nitrogen and drying it, then mixing it with polypropylene glycol, butyl titanate and sulfuric acid (concentrated sulfuric acid with a concentration of 98wt%), and then calcining. have to. Specifically, the preparation method of the modified vermiculite is: according to the mass ratio of vermiculite, polypropylene glycol, butyl titanate and sulfuric acid to 12:8:0.9:0.9, respectively weigh vermiculite, polypropylene glycol, titanium Butyl acid and sulfuric acid, crush the weighed vermiculite to 200 mesh, add water for ultrasonic treatment (ultrasonic frequency is 40kHz, ultrasonic power is 30W) and...

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PUM

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Abstract

The invention relates to the field of environmental governance, and particularly discloses a soil remediation agent as well as a preparation method and application thereof. The soil remediation agentis prepared from the following raw materials: phosphogypsum, caustic soda, alkaline furnace slag, calcium bentonite, high-alumina bauxite, pandermite, modified vermiculite and water. The soil remediation agent has a good remediation effect on mercury-contaminated soil, the solidification effect on heavy metal mercury can be effectively improved through reasonable matching of ardealite, caustic soda, alkaline furnace slag, calcium bentonite, high-alumina bauxite, pandermite, modified vermiculite, water and other raw materials. When the soil remediation agent is used for mercury-contaminated soil treatment, the remediation period can be shortened while the remediation effect is guaranteed, so that the problem that an existing soil remediation agent for mercury-contaminated soil treatment cannot shorten the remediation period while the remediation effect is guaranteed is solved. In addition, the preparation method provided by the invention is simple and has a great market prospect.

Description

technical field [0001] The invention relates to the field of environmental governance, in particular to a soil remediation agent and its preparation method and application. Background technique [0002] With the continuous development of society, environmental issues are becoming more and more important. Among them, soil is an important material basis for people's survival, but soil pollution occurs due to human activities, which will not only affect plants, but also endanger people's health. Therefore, soil remediation agents are used to restore soil to improve Soil environment is of great significance to environmental governance. [0003] Among them, heavy metal polluted soil refers to soil polluted mainly by metals such as mercury, cadmium, lead, copper, chromium, arsenic, nickel, manganese, zinc, etc. Since mercury heavy metals cannot be decomposed by soil microorganisms, they will enter the human body through the food chain Accumulation can seriously endanger human he...

Claims

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Application Information

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IPC IPC(8): C09K17/08B09C1/08C09K109/00
CPCB09C1/08B09C2101/00C09K17/08C09K2109/00
Inventor 杨剑飞
Owner 杨剑飞