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Advanced redox in-situ treatment system and method for restoring polluted soil

A technology for advanced oxidation and polluted soil, which is applied in the restoration of polluted soil, etc., to achieve the effect of flexible ratio, soil remediation effect and cost reduction

Active Publication Date: 2014-07-16
QINGDAO ODO ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problem of soil pollution with high efficiency and low cost, and provide an advanced redox in-situ treatment system and method for repairing polluted soil, which can produce and transport degradation agents and ozone aqueous solution according to actual degradation requirements to accurately achieve the main pollution The soil layer in the target area of ​​the object, and the mobile device on the ground is used to emit high-power ultrasonic waves to the ground to catalyze the realization of advanced redox reactions, and finally degrade soil pollutants efficiently and quickly

Method used

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  • Advanced redox in-situ treatment system and method for restoring polluted soil
  • Advanced redox in-situ treatment system and method for restoring polluted soil
  • Advanced redox in-situ treatment system and method for restoring polluted soil

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Effect test

Embodiment 1

[0076] Such as Figure 1-15 As shown, a pollution treatment system is established on a piece of polluted land to be treated, and the polluted soil is treated with advanced redox reaction, and then the infiltrated waste liquid is extracted for harmless treatment and reused, and then the treated soil is treated Biodegradation treatment; the implementation process of the advanced redox reaction treatment is as follows: firstly prepare a mixed solution for pollutant degradation, and transport it to the location of soil pollutants in time by means of underground infiltration, deep hole irrigation, and ground irrigation; Ultrasonic catalysis is emitted from the ground to the ground to realize the advanced redox reaction of the pollutant degradation mixed solution, and accelerate the degradation of pollutants in the soil.

[0077] The specific implementation process is: establish the pollution treatment system (1): including water supply subsystem (15), ozone water production subsyst...

Embodiment 2

[0097] After the relocation of XX Chemical Factory in Jinan, Shandong Province, a large amount of heavy metal pollutants existed in the soil of its factory area and surrounding areas for a long time. Although it has been treated many times, it has not been able to meet the national pollution soil treatment requirements. The land has been unable to be cultivated and used as commercial land for a long time. Idle waste.

[0098] Using the technical solution described in Example 1, the restoration of 220 acres of polluted land was completed within 25 days, and the implementation cost was only 30% of the price quoted by other purification technology service companies, and the repair time was only the shortest time spent by other service providers. 20%-30%, 0-5m soil samples after soil remediation are submitted for inspection and confirmation, which fully meet the relevant national regulations, and no pollutants are detected in the groundwater after inspection.

[0099] Apply soil i...

Embodiment 3

[0108] There has been a large amount of organic pollutants in the soil around XX Chemical Industry Park in Linyi City, Shandong Province for a long time. Although it has been treated many times, it has not been able to meet the national pollution soil treatment requirements.

[0109] Apply soil improver, organic fertilizer, and biological bacteria fertilizer to the treated soil to carry out biodegradation treatment on the treated soil.

[0110] The soil remediation process of the plot is as follows: the soil is detected by the detection subsystem, and the main pollutants in the plot are phenol, hydrocarbon, and ether organic pollution, and the polluted soil layer is 2-3 meters underground.

[0111] We chose an aqueous ozone solution with a concentration of 16PPM as the degradation agent. The high-concentration ozone water was injected 2 meters underground, and an advanced oxidation reaction occurred under the catalysis of ultrasonic irradiation on the ground, and the ozone wate...

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Abstract

The invention discloses an advanced redox innocent treatment system and method for waste pollutants, belonging to the technical fields of pollution treatment and restoration and environmental protection. The innocent treatment system comprises a waste degradation subsystem, a waste liquid treatment subsystem, an ozone water preparation subsystem, a degradation reagent addition subsystem, a detection control subsystem and a water level control subsystem. The method comprises the following steps: determining the type of waste pollutant, selecting the degradation reagent, pouring the waste pollutant into a treating pond, carrying out advanced redox treatment on the waste pollutant, carrying out innocent treatment on the treated waste liquid, reutilizing, and carrying out biodegradation treatment on the treated soil. The system and method have the advantages of obviously higher degradation efficiency and short time consumption, can treat organic pollutants within 2-3 days, can treat heavy metal pollutants within 3-5 days, greatly shorten the pollutant treatment time, and lower the cost by more than 70%.

Description

technical field [0001] The patent of the present invention relates to an advanced oxidation-reduction in-situ treatment system and method for repairing polluted soil, in particular to provide a flexible configuration, highly targeted, efficient and fast method for polluted soils in different regions, different soil properties, and different pollution situations. The method uses ultrasonic waves to catalyze the advanced oxidation / reduction reaction between the underground pollutants and the degradation agent solution, so as to achieve the purpose of efficiently degrading the pollutants. Background technique [0002] At present, there are two main methods for the treatment of contaminated soil: ex-situ repair and in-situ repair. Among them, the ex-situ repair method has problems such as high cost and new pollution to the surrounding environment; while the existing in-situ repair method , then there is a long treatment time (five to ten years), poor treatment effect, and can no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08
Inventor 邓煜宝柳尧波段友臣李长松周红张悦丽王学陈达理
Owner QINGDAO ODO ENVIRONMENTAL TECH CO LTD
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