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The method of leaching and remediation of antimony polluted soil

A technology of contaminated soil and remediation method, which is applied in the field of leaching and remediation of antimony-contaminated soil to achieve effective collection and utilization and better quality

Active Publication Date: 2020-02-07
HUATIAN ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no report about the leaching method of antimony-contaminated soil

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  • The method of leaching and remediation of antimony polluted soil

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Embodiment 1

[0023] This example is specifically described through experimental data. The antimony-contaminated soil used in this example is the soil with an antimony concentration of 28463ug / Kg.

[0024] The horizontal axis in the figure is the total soaking time, and the vertical axis in the figure is the concentration of antimony in the solution after a single soaking of antimony-contaminated soil.

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Abstract

The invention discloses a method for rinsing and repairing antimony-contaminated soil, mainly aiming at the problem that the leaching technology in the prior art does not have the ability to repair antimony-contaminated soil, and proposes a method for rinsing and repairing antimony-contaminated soil for repairing antimony-contaminated soil , comprising: step 1) mixing antimony-contaminated soil with quartz sand and stirring evenly to form soil to be rinsed; step 2) placing soil to be rinsed in air for oxidation; step 3) oxidizing soil to be rinsed Soak with a washing agent, the washing agent is a weakly alkaline solution with a pH value of 8.1 to 10; step 4) filter the washing agent from the soil, and detect the antimony content in the soil; if the antimony in the soil If the antimony content in the soil does not reach the qualified standard, return to step 2); if the antimony content in the soil reaches the qualified standard, the treatment process is ended. The invention can efficiently repair antimony-polluted soil, not only restore the quality of the soil but also enrich the antimony element.

Description

technical field [0001] The invention relates to a method for rinsing and repairing antimony-contaminated soil. Background technique [0002] Antimony (Sb) is a typical toxic heavy metal element that is not necessary for organisms and widely distributed, and is one of the global environmental pollutants. It is highly toxic to human health. Antimony and all antimony compounds are toxic to the human body. The toxic effect of Sb on the human body is due to the strong affinity between Sb and the sulfhydryl group (-SH) in the protein. In the human body, Sb combines with the sulfhydryl group (-SH) to inhibit certain The activity of thiol enzymes such as succinate oxidase interferes with the metabolism of proteins and sugars in the body, damages the liver, heart and nervous system, and also stimulates the mucous membranes. Antimony and its compounds are used in transportation, flame retardants, chemicals, glass, The wide use of plastics, rubber, military industry, etc., the human ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/02B09C1/08
CPCB09C1/02B09C1/08
Inventor 项萌李明王浩程寒飞詹茂华
Owner HUATIAN ENG & TECH CORP MCC