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A synergistic elution system for organochlorine pesticide-contaminated soil

A pesticide-contaminated soil and elution system technology, which is applied in the field of organochlorine pesticide-contaminated soil synergistic elution equipment system, can solve problems such as poor elution effect and complex structure, and achieve the effect of protecting the solenoid valve and avoiding damage

Active Publication Date: 2016-03-02
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problems of complex structure and poor elution effect of soil pollutant elution equipment in the prior art, the present invention provides a synergistic elution system for organochlorine pesticide-contaminated soil, which has a simple structure and can meet the elution requirements of soil

Method used

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  • A synergistic elution system for organochlorine pesticide-contaminated soil
  • A synergistic elution system for organochlorine pesticide-contaminated soil
  • A synergistic elution system for organochlorine pesticide-contaminated soil

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Embodiment 1

[0039] This device is used in a soil remediation project of an organochlorine pesticide polluted site in Wuhan. In this project, if figure 1 , the synergistic elution system includes a system framework 1. System frame 1 size: 10500mm (length) × 2438mm (width) × 2864mm (height), welded by 100mm × 100mm × 8mm square steel pipe. System frame 1 is installed inside with 3 The elution bucket 16, 1 dosing bucket 6. In order to ensure the manufacturing process and economical feasibility of the elution barrel 16, the elution barrel 16 is made of carbon steel material, and the inside is sprayed with two coats of epoxy asphalt paint. Dosing barrel 6 size: The top of the elution barrel 16 is provided with a stirring device 12 and a piping system.

[0040] The stirring device 12 adopts a mechanical stirring method, that is, the drive motor and the reducer jointly drive the propeller blades on the drive shaft to stir. The stirring speed is 60-70 rpm. The elution barrel 16 is stirre...

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Abstract

The invention disclosed an organo-chlorine pesticide contaminated soil synergism eluting system, and belongs to the field of soil elution equipment. The organo-chlorine pesticide contaminated soil synergism eluting system comprises a system framework; the system framework is provided with a plurality of eluting devices; the eluting devices comprise eluting barrels; the top of each eluting barrel is provided with a stirring device and a pipeline system; a mechanical stirring mode is adopted for the stirring device; each pipeline system comprises a cleaning pipeline, a charging pipeline and a medicine charging pipeline; branch pipes from the pipeline of the charging pipeline act as return pipelines; the other ends of the return pipelines are connected to the bottom parts of the eluting barrels internally, and the return pipelines are provided with slag slurry pumps; the other ends of the medicine charging pipes are connected with the medicine charging barrels; medicaments in the medicine charging barrels contain surface active agents; the medicine charging pipelines are provided with metering and medicine charging pumps; and the side walls of the eluting barrels are sequentially provided with supernatant liquid overflow pipes, middle supernatant overflow pipes and sampling pipes from top to bottom. The organo-chlorine pesticide contaminated soil synergism eluting system is simple in structure and can reach the eluting requirement of soil.

Description

technical field [0001] The invention belongs to the field of soil eluting equipment, and more specifically relates to a synergistic eluting equipment system for organochlorine pesticide-contaminated soil. Background technique [0002] In organochlorine-contaminated sites, the concentration distribution of pollutants in different particle sizes of soil is different. The general rule is that the smaller the particle size of the soil, the greater the concentration of concentrated pollutants. At the same time, due to the hard texture and compact structure of stones, bricks, concrete blocks, and gravel, it is difficult for pollutants in the soil to enter the interior of these substances and only adhere to the surface of these substances. When using leaching to remediate the soil of pesticide-contaminated sites, it is necessary to classify the soil according to the particle size. During the grading process, most of the pesticide pollutants attached to the surface of stones, brick...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/02
Inventor 张胜田林玉锁万金忠万德山陈纪赛刘兵李群周艳
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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