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Pesticide contaminated soil treatment device adopting advanced oxidation technique

A technology of pesticide-contaminated soil and advanced oxidation technology, which is applied in the field of pesticide-contaminated soil treatment devices, can solve the problems of low treatment cost and short treatment period, and achieve the effects of low treatment cost, short treatment period and convenient subsequent utilization.

Pending Publication Date: 2017-09-26
SHANGHAI LAOGANG WASTE DISPOSAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a pesticide-contaminated soil treatment device with short treatment period, low treatment cost and good treatment effect using advanced oxidation technology in view of the problems existing in the existing pesticide-contaminated soil treatment method

Method used

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  • Pesticide contaminated soil treatment device adopting advanced oxidation technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The pesticide-contaminated soil content in this example is 2048mg / kg.

[0036] First place a diversion layer 110 in the bottom of the reaction cylinder 100 for leachate export; then mix alcohol and pesticide-contaminated soil at a ratio of 0.3:1, and react for 2 hours to fully dissolve the pesticide in the soil into the alcohol. Then add biogas residue, add the mixture of biogas residue, alcohol and pesticide-contaminated soil into the reaction cylinder, the mixing ratio is 0.3:0.3:1, to form a mixed layer 120; lay a layer of nano-magnetic material on the upper part of the mixed layer in the reaction cylinder layer, and spray a certain amount of nano-titanium material on the surface of the nano-magnetic material layer, and the spraying intensity is 100g per square meter.

[0037] During operation, the leachate of the mixed layer 120 is transported to the leachate collection tank 200 through the leachate outlet pipe 810 every 24 hours, and then the leachate is transporte...

Embodiment 2

[0040] The pesticide-contaminated soil content in this example is 1023mg / kg.

[0041]First place a diversion layer 110 in the bottom of the reaction cylinder 100 for leachate export; then mix alcohol and pesticide-contaminated soil at a ratio of 0.2:1, and react for 1 hour to fully dissolve the pesticide in the soil into the alcohol. Then add biogas residue, and add the mixture of biogas residue, alcohol and pesticide-contaminated soil into the reaction cylinder with a mixing ratio of 0.4:0.2:1 to form a mixed layer 120; lay a layer of nano-magnetic material on the upper part of the mixed layer in the reaction cylinder layer, and spray a certain amount of nano-titanium material on the surface of the nano-magnetic material layer, and the spraying intensity is 300g per square meter.

[0042] During operation, the leachate of the mixed layer 120 is transported to the leachate collection tank 200 through the leachate outlet pipe 810 every 12 hours, and then the leachate is transpo...

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Abstract

The invention discloses a pesticide contaminated soil treatment device adopting an advanced oxidation technique. The pesticide contaminated soil treatment device adopting the advanced oxidation technique comprises a reaction cylinder, a leachate collection tank, a reflux pump, a water distributor, an ultraviolet lamp, an acid solution adding mechanism and a hydrogen peroxide adding mechanism, wherein a flow guiding layer, a mixing layer and a magnetic nano-material layer are sequentially arranged in the reaction cylinder from bottom to top, and a flow guiding port is formed in the lower portion of the reaction cylinder and located below the flow guiding layer; a leachate inlet of the leachate collection tank is connected with the flow guiding port; an inlet of the reflux pump is connected with a leachate outlet of the reflux pump; the ultraviolet lamp is located above the reaction cylinder; the acid solution adding mechanism can add an acid solution onto the magnetic nano-material layer; and the hydrogen peroxide adding mechanism can add a hydrogen peroxide solution onto the magnetic nano-material layer. According to the pesticide contaminated soil treatment device adopting the advanced oxidation technique, the treatment period is short, the treatment cost is low, and the treatment effect is good.

Description

technical field [0001] The invention relates to the technical field of pesticide-contaminated soil treatment devices, in particular to a pesticide-contaminated soil treatment device using advanced oxidation technology. Background technique [0002] With the development of industry and agriculture and the expansion of urbanization, a large amount of soil is polluted by pesticides or wastewater and solid waste discharged from pesticide factories. At present, the treatment methods for pesticide-contaminated soil mainly include thermal analysis method and advanced oxidation method. The thermal analysis method is costly and easy to generate air pollutants, causing certain pollution to the surrounding atmospheric environment. The advanced oxidation method adds a lot of chemicals, which is easy to pollute the soil. At present, microbial methods are attracting more and more attention. For example, Chinese patent application No. 201610442960.2 discloses a treatment method for biolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08B09C1/10
CPCB09C1/08B09C1/10
Inventor 张美兰周海燕黄仁华方正唐佶陈玉怡张军汤建飞苏冬云朱英明
Owner SHANGHAI LAOGANG WASTE DISPOSAL CO LTD
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