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Soil restoration method for removing organochlorine pesticide ingredients in farmland soil

A pesticide component and soil remediation technology, applied in the restoration of contaminated soil, etc., can solve the problems of high strain screening conditions, low efficiency, complex technology, etc.

Active Publication Date: 2016-06-22
HENAN BAIYU PLANT IMMUNE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the existing microbial degradation technology of organochlorine pesticides has disadvantages such as low efficiency, complex technology, high requirements for strain screening conditions, many influencing factors, and high cost.

Method used

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  • Soil restoration method for removing organochlorine pesticide ingredients in farmland soil
  • Soil restoration method for removing organochlorine pesticide ingredients in farmland soil

Examples

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Effect test

Embodiment Construction

[0023] Such as figure 1The shown soil remediation method for removing organochlorine pesticide components in farmland soil, the system used in the method includes 1-raw soil hopper, 2-blast sorter, 3-vibrating screener, 4-magnetic screener, 5-grinding Pulverizer, 6-thermal desorption-plasma cracking reactor, 7-waste heat exchanger, 8-washing purification tower, 9-induced fan, 10-adjustable spray tower, 11-waste heat dryer, 12-remediation soil Storage warehouses, etc.; among them, the farmland soil containing organochlorine pesticide components to be repaired is stored in the raw soil hopper 1, where it is collected centrally and the preliminary stabilization process is completed, and the soil to be repaired in the raw soil hopper 1 is conveyed by a screw lift The machine is transported to the blast separator 2, where low-density and large-volume debris such as plastics and paper in the soil are removed. For impurities with high density and large particle size, the outlet of t...

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Abstract

The invention discloses a soil restoration method for removing organochlorine pesticide ingredients in farmland soil.The characteristic that organochlorine pesticide ingredients absorbed by soil can be detached and desorbed after being heated is creatively utilized, the organochlorine pesticide ingredients are volatilized into air in the form of vapor, then the vapor is introduced into high temperature plasma flame, the catalytic cracking effect special for the high temperature plasma flame is utilized, and organochlorine pesticide molecular bonds are broken and split into small molecular substances and can be discharged after being purified; meanwhile soil obtained after thermal desorption-plasma pyrolysis purification treatment can be applied to agricultural production repeatedly.

Description

technical field [0001] The invention relates to a soil restoration method for removing organochlorine pesticide components in farmland soil, belonging to the field of soil restoration in environmental protection. Background technique [0002] Organochlorine pesticides are organic compounds that contain organochlorine elements in the components used to prevent and control plant diseases and insect pests. The main components are two types that use benzene as raw material and cyclopentadiene as raw material. The former, such as the earliest and most widely used insecticides DDT and HCH, as well as the acaricides dicofol, dicofol, etc., and the fungicides pentachloronitrobenzene, chlorothalonil, Daofengning, etc.; the latter Such as chlordane, heptachlor, and aldrin as pesticides. In addition, camphene-based insecticides based on turpentine, toxaphene, and bornyl chloride based on terpenes also belong to organochlorine pesticides. [0003] Organochlorine pesticides play an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/06
CPCB09C1/00B09C1/065
Inventor 陈杰
Owner HENAN BAIYU PLANT IMMUNE TECH CO LTD
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