Dynamic control technology for long-acting precise release of in-situ chemical oxidation material

An in-situ chemical oxidation and dynamic control technology, which is applied in oxidized water/sewage treatment, restoration of contaminated soil, contaminated groundwater/leachate treatment, etc., can solve the high requirements for the release of in-situ chemical oxidation materials , Increase repair costs, waste of in-situ chemical oxidation materials, etc.

Active Publication Date: 2021-11-12
ENVIRONMENTAL PROTECTION RES INST OF LIGHT IND
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Problems solved by technology

[0004]In the existing in-situ chemical remediation technology, the groundwater pollution plume is mainly repaired by putting in-situ chemical oxidation materials into the remediation well. However, the groundwater pollution plume There is a change in the concentration of the in-situ chemical oxidation material, and the control of the release amount of the

Method used

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Embodiment

[0033] The core of the present invention is to provide an in-situ chemical oxidation material long-term precise release dynamic control technology for groundwater remediation. The distribution of pollution plumes is obtained by layer sampling method. The distribution of pollution plumes is first analyzed by sampling multiple underground vertical profiles, collecting concentration parameters, drawing a concentration profile, and generating the distribution of pollution plumes based on multiple concentration profiles. According to the model, the number and distribution of repair wells that need to be excavated are designed, and at least one repair well that penetrates the groundwater pollution plume is finally excavated. The repair wells can be arranged in an array, or the opening of the repair wells can be adjusted according to the regional concentration of the pollution plume. dig location.

[0034] In the remediation well, install multi-stage remediation units sequentially. E...

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Abstract

The invention relates to a dynamic control technology for long-acting precise release of an in-situ chemical oxidation material, which is used for groundwater remediation and comprises the steps of excavating a remediation well penetrating groundwater pollution plumes; sequentially arranging a plurality of sections of remediation units in the remediation well in a segmented mode, and filling each section of remediation unit with an in-situ chemical oxidation material used for remediating the pollution plume in a sealed mode, wherein each section of remediation unit is provided with a control switch used for controlling release of the in-situ chemical oxidation material; and searching the remediation unit corresponding to the pollution plume, turning on the control switch corresponding to the remediation unit, releasing the in-situ chemical oxidation material, and remediating the pollution plume. The release amount of the in-situ chemical oxidation material can be adjusted, the release of the in-situ chemical oxidation material can be controlled by searching the remediation unit corresponding to the pollution plume, the reaction efficiency of remediation and purification of the pollution plume can be improved, remediation with stable length can be achieved, waste of the in-situ chemical oxidation material can be avoided, and the overall repair cost is reduced.

Description

technical field [0001] The invention relates to the technical field of groundwater restoration and purification, in particular to a dynamic control technology for long-term precise release of in-situ chemical oxidation materials. Background technique [0002] Groundwater is a precious freshwater resource for human beings. However, with the continuous development of social industrialization, wastewater discharge, industrial waste residue, agricultural irrigation, landfill leakage, and damage to transportation pipelines and storage tanks for petrochemical raw materials may cause groundwater pollution. It makes the original tense water shortage problem more serious, and poses serious threats and challenges to human health, food safety, drinking water safety, regional ecological environment, sustainable economic and social development, and even social stability. Groundwater restoration has become a public concern and environmental issues of social concern. [0003] Remediation ...

Claims

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Application Information

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IPC IPC(8): C02F1/72B09C1/08B09C1/00C02F103/06
CPCC02F1/72B09C1/08B09C1/002C02F2103/06Y02W10/10
Inventor 李培中张骥吴乃瑾荣立明李翔王海见宋久浩王珍霞魏文侠宋云
Owner ENVIRONMENTAL PROTECTION RES INST OF LIGHT IND
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