Reaction device for ex-situ remediation of soil and ex-situ remediation method of soil

An ectopic remediation and reaction device technology, applied in the field of soil remediation, can solve the problems of difficult control of the dosage ratio of chemicals and the amount of water added, and achieve the effect of avoiding secondary pollution

Pending Publication Date: 2022-04-12
BCEG ENVIRONMENTAL REMEDIATION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the dosing ratio of the medicament and the amount of water are difficult to control during the soil restoration process in the prior art, thereby providing a reaction device and a soil heterogeneous bit repair method

Method used

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  • Reaction device for ex-situ remediation of soil and ex-situ remediation method of soil
  • Reaction device for ex-situ remediation of soil and ex-situ remediation method of soil
  • Reaction device for ex-situ remediation of soil and ex-situ remediation method of soil

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Experimental program
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Effect test

Embodiment 1

[0071] Pile the polluted soil in the concrete pool into a long pile of 47m wide, 25m high, and 0.8m high. Accurately calculate and control the dosage of soil chemicals, water distribution, etc. through the soil volume, and use spraying equipment to divide the soil in the pool. For medicine, the excavator equipped with a special mixing head enters the concrete pool to fully mix the soil and medicine; the stirred soil is transferred to the waiting area for reaction and waiting for inspection. The soil in this experimental group does not need special sieving pretreatment, and it is enough to pick out large slag blocks during the excavation process.

[0072] In this embodiment, the comparison will be made through a comparative example, and the soil samples will be tested for the concentration of pollutants in one month. The daily treatment capacity of chemical oxidation without concrete tank is roughly 600-700m3 / d, and the daily treatment capacity of chemical oxidation with concre...

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Abstract

The invention provides a reaction device for ex-situ remediation of soil and a soil ex-situ remediation method, and belongs to the technical field of soil remediation, the reaction device for ex-situ remediation of soil comprises: a concrete pool having a bottom wall and a side wall, the side wall being perpendicular to the bottom wall; a drainage ditch is arranged outside the concrete pond and communicated with the bottom wall of the concrete pond, and the other end of the drainage ditch leads to the water collecting well; according to the reaction device for ex-situ remediation of the soil, the to-be-remediated soil is contained in the concrete pool, and the side wall of the concrete pool is perpendicular to the bottom wall, so that the volume of the to-be-remediated soil can be conveniently calculated according to the volume of the concrete pool, and the feeding ratio and the water adding amount of an agent can be accurately controlled according to the volume of the soil; controlling the moisture content of the soil to reach the soil saturation moisture content as much as possible; in addition, the device can also be used for conveying overflowed mud into a concrete pool for secondary remediation, and can be used for monitoring the reaction temperature of the soil and the moisture content of the soil in real time.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a reaction device for ex-situ remediation of soil and a method for ex-situ remediation of soil. Background technique [0002] With the upgrading of the domestic economy, industrial transfer and transformation, a large number of steel, chemical and other industrial lands, solid waste dumps, and military bases have been relocated from urban centers to other areas or suburbs, leaving a large number of polluted sites. A large number of organic pollution sites left behind have seriously hindered urban construction and local economic development. Contaminated soil is difficult to restore, causing hazards to agricultural products and human health. [0003] Therefore, the problem of polluted soil purification has attracted more and more attention from the state. There are many remediation technologies for soil pollution. Currently, commonly used remediation technologies includ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08B09C1/06
Inventor 李静文李丹丹王彦王钪康海波孙于茹郭楠李任飞
Owner BCEG ENVIRONMENTAL REMEDIATION CO LTD
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