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Equipment and method for synergistically eluting and repairing soil in organochlorine pesticide polluted site

A pesticide pollution and organochlorine technology, applied in the field of polluted soil treatment, can solve the problems of low treatment efficiency and large floor space, and achieve the effect of reducing floor space, saving space, reducing equipment cost and equipment energy consumption

Active Publication Date: 2021-06-22
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current soil synergistic elution equipment needs to involve more processing units to complete the synergistic elution process, so it occupies a large area and has low processing efficiency

Method used

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  • Equipment and method for synergistically eluting and repairing soil in organochlorine pesticide polluted site
  • Equipment and method for synergistically eluting and repairing soil in organochlorine pesticide polluted site
  • Equipment and method for synergistically eluting and repairing soil in organochlorine pesticide polluted site

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Experimental program
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Effect test

Embodiment

[0047] Such as figure 1 As shown, a soil synergistic elution repair equipment for organochlorine pesticide-contaminated sites mainly includes: a feed box 1 for soil entry and preliminary crushing, and a feed box 1 for sieving the crushed soil A screening mechanism 4 for sub-treatment, an elution box 5 for soil elution arranged under the feed box 1, a recovery box 7 for eluent recovery containing the elution box 5, the sieve The sub-mechanism 4 is located in the elution box 5, and all the processing equipment are arranged together, which not only saves the floor area, but also directly collects the elution waste liquid to complete the recovery through the recovery box 7 containing the elution box 5, and The soil does not need to be transferred through multiple augers and conveyor belts, which saves equipment resources and energy consumption;

[0048] Such as figure 1 As shown, the feed box 1 includes: a feed inlet 11 arranged at the top of the feed box 1, a control feeding me...

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Abstract

The invention discloses equipment for synergistically eluting and repairing soil in organochlorine pesticide polluted site. The equipment mainly comprises a feeding box, a screening mechanism, an elution box and a recycling box, and the screening mechanism is located in the elution box; a feeding control mechanism and a crushing mechanism are arranged in the feeding box; the crushing mechanism is arranged below a feeding channel, the crushing mechanism comprises an outer cylinder, an inner cylinder rotationally arranged in the outer cylinder and a discharging port formed below a gap between the outer cylinder and the inner cylinder, and a plurality of crushing cutters are arranged on the outer side of the inner cylinder; the screening mechanism comprises a first screening plate which shakes horizontally and a second screening plate which is in sliding connection with the bottom surface of the first screening plate; a stirring and eluting mechanism capable of stirring soil in multiple directions and spraying eluent in multiple angles is arranged below the screening mechanism; the equipment is small in occupied area, high in elution efficiency and suitable for wide popularization.

Description

technical field [0001] The invention relates to the technical field of contaminated soil treatment, in particular to a device and method for synergistic elution and restoration of soil in organochlorine pesticide-contaminated sites. Background technique [0002] As the city "retreats from the second to the third", after the closure and relocation of the pesticide and chemical enterprises that were originally located in the urban area or in the suburbs, a large number of pesticide and chemical contaminated sites that need to be repaired have emerged. Because such sites generally have the characteristics of long production history, complex pollution components, high soil viscosity, large volume, wide area, and dense surrounding sensitive receptors, compared with other industrial polluted sites, they are more harmful, higher risk, and serious. It has become a major soil environmental problem that needs to be solved urgently. There is an urgent need to develop fast and high-thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/02B09C1/08B02C1/04B02C18/08B02C19/20B02C23/10B02C23/16
CPCB09C1/00B09C1/02B09C1/08B02C1/04B02C18/08B02C19/20B02C23/10B02C23/16B02C2023/165
Inventor 周艳万金忠张胜田李群王祥赵远超靳德成
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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