Application of ball milling immobilization method in treatment of heavy metal contaminated soil

A technology for contaminated soil and heavy metals, which is applied in the field of heavy metal-contaminated soil, can solve problems such as poor soil remediation technology effects, and achieve the effect of improving the refinement effect, simple and fast operation, and reducing the noise coefficient

Active Publication Date: 2015-08-19
SHANGHAI JIANWEI ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing Soil Remediation Techniques Are Ineffective

Method used

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  • Application of ball milling immobilization method in treatment of heavy metal contaminated soil
  • Application of ball milling immobilization method in treatment of heavy metal contaminated soil
  • Application of ball milling immobilization method in treatment of heavy metal contaminated soil

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Embodiment Construction

[0058]In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0059] refer to figure 1 , figure 2 , image 3 , the application of the ball milling solidification method in the treatment of heavy metal contaminated soil, the ball milling solidification method is used to repair the heavy metal contaminated soil containing nickel, zinc, arsenic, lead, copper, the following specific steps for the restoration of heavy metal contaminated soil: Step 1. Use excavation The machine excavates the heavy metal-contaminated soil, and the excavated polluted soil is screened and separated by particle size; step 2. screens and separates the heavy metal-contaminated soil with a particle diameter not greater than 2mm, and uses a ball mill to grind the heavy metal-contaminated soil; step 3. grinds Add a mixed reagent for curing ...

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Abstract

The invention relates to a ball mill and discloses application of a ball milling immobilization method in treatment of heavy metal contaminated soil. The ball milling immobilization method is applied to restoration of heavy metal contaminated soil containing nickel, zinc, arsenic, lead and copper. The restoration comprises the following concrete steps: step 1, excavating the heavy metal contaminated soil with an excavator and screening and separating the excavated heavy metal contaminated soil according to particle sizes; step 2, screening and separating out heavy metal contaminated soil with a particle diameter of no more than 2 mm and grinding the separated heavy metal contaminated soil with a ball mill; step 3, adding a mixed reagent for immobilization into the ground heavy metal contaminated soil and carrying out uniform mixing under stirring; and step 4, sampling the restored heavy metal contaminated soil and detecting the obtained sample. With the ball milling immobilization method, heavy metals in the contaminated soil and heavy metal tailings are effectively immobilized, the physical and chemical properties of original soil are not influenced, and the purposes of the soil are not affected.

Description

technical field [0001] The invention relates to soil pollution treatment, in particular to the treatment of heavy metal polluted soil. Background technique [0002] Nearly three decades of economic growth, industrialization, and urbanization have brought great material wealth to China and greatly improved people's living standards. However, China has also paid a heavy price. Energy consumption and industrial and agricultural production activities have seriously damaged China's ecological environment. Air pollution, water pollution, soil and groundwater pollution threaten people's health and property safety, and also restrict China's environmental protection. sustainable economic development. In recent years, soil and groundwater pollution have received great attention, so there is an urgent need to research and develop remediation technologies that meet my country's national conditions. [0003] Existing soil remediation techniques do not work well. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08B02C17/10B02C17/18
Inventor 赵秀红王亮李伟郭伟民
Owner SHANGHAI JIANWEI ENVIRONMENTAL PROTECTION TECH CO LTD
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