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Chemical injection process for in-situ repairing of organic pollutants and device

An in-situ remediation and organic matter technology, applied in the field of soil remediation, can solve problems such as poor remediation effect, and achieve the effect of avoiding complicated manual operation, facilitating dispersion, and large diffusion range

Active Publication Date: 2019-11-08
云南天朗环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, some soil remediation agents are used to remediate benzene-series polluted soil, but there is a problem of poor remediation effect

Method used

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  • Chemical injection process for in-situ repairing of organic pollutants and device
  • Chemical injection process for in-situ repairing of organic pollutants and device
  • Chemical injection process for in-situ repairing of organic pollutants and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A chemical injection process for in-situ remediation of organic pollution, including the following steps:

[0045]A. Select the plot to be processed, mark the location of the injection hole and drill the hole, and set the offset between two adjacent rows of injection holes;

[0046] B. Put the drug injection pipe into the injection hole to form a drug injection well, the depth of the drug injection well is 2m, and then clean the inside of the drug injection well;

[0047] C. Send the injection head into the drug injection well, and then inject the repair agent into the drug injection well. The injection rate is 5L / min, the injection pressure is 0.5MPa, and when the liquid level of the drug liquid is 0.1cm away from the wellhead of the drug injection well, stop the drug injection , and take out the injection head;

[0048] D. Seal the wellhead of the drug injection well. The sealing material is cement bentonite mixed slurry, and then operate and seal the next drug injec...

Embodiment 2

[0050] A chemical injection process for in-situ remediation of organic pollution, including the following steps:

[0051] A. Select the plot to be processed, mark the location of the injection hole and drill the hole, and set the offset between two adjacent rows of injection holes;

[0052] B. Put the drug injection pipe into the injection hole to form a drug injection well. The depth of the drug injection well is 10m, and then clean the inside of the drug injection well;

[0053] C. Send the injection head into the drug injection well, and then inject the repair agent into the drug injection well. The injection rate is 15L / min, the injection pressure is 01.0MPa, and when the liquid level of the drug liquid is 50cm from the wellhead of the drug injection well, stop the drug injection. and take out the injection head;

[0054] D. Seal the wellhead of the drug injection well. The sealing material is cement bentonite mixed slurry, and then operate and seal the next drug injectio...

Embodiment 3

[0056] A chemical injection process for in-situ remediation of organic pollution, including the following steps:

[0057] A. Select the plot to be processed, mark the location of the injection hole and drill the hole, and set the offset between two adjacent rows of injection holes;

[0058] B. Put the drug injection pipe into the injection hole to form a drug injection well, the depth of the drug injection well is 6m, and then clean the inside of the drug injection well;

[0059] C. Send the injection head into the drug injection well, and then inject the repair agent into the drug injection well. The injection rate is 10L / min, the injection pressure is 0.5MPa, and when the liquid level of the drug liquid is 25cm away from the wellhead of the drug injection well, stop the drug injection. and take out the injection head;

[0060] D. Seal the wellhead of the drug injection well. The sealing material is cement bentonite mixed slurry, and then operate and seal the next drug injec...

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Abstract

The invention discloses a chemical injection process for in-situ repairing of organic pollutants. The chemical injection process comprises the steps of punching, loading-in of a chemical injection pipe, chemical injection well cleaning, chemical injection and sealing. The chemical injection process has the advantages of facilitating repairing chemical dispersion and being large in diffusion range,the soil remediation effect is good, and the chemical injection process is especially suitable for the organic pollutants such as benzene and benzo(a)pyrene in a soil deep layer. The invention further discloses a device of the chemical injection process for in-situ repairing of the organic pollutants, and the device comprises an injection platform and a cleaning platform. The device integrates the functions of automatic chemical injection well cleaning and chemical injection and has the advantage of convenient operation; and in the cleaning process, a chain-type sliding frame is controlled tobe lowered into a chemical injection well through a winch, the chain-type sliding frame is of a chain-type structure composed of multiple sections of sliding frame bodies, on the one hand, lowering is facilitated, on the other hand, the loading effect on a water supplying hose and a water pumping hose is realized, a high-pressure rotating water-spraying head and a water pumping head continuouslyascend and descend advantageously in the working process, and thus water pumping operation can be conducted after water-spraying cleaning.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, and in particular relates to a medicament injection process and device for in-situ remediation of organic matter pollution. Background technique [0002] Organic pollutants in soil are a large category of pollutants. Although organic pollutants are not as serious as heavy metal pollutants, their impact on agricultural products and human health has been highlighted. At the same time, with the acceleration of urbanization and industrialization, soil organic pollution near cities and industrial areas has become increasingly serious. Among organic pollutants, diseases and environmental hazards caused by benzene series pollutants are not uncommon. In the prior art, some soil remediation of benzene series pollutants is carried out by mixing and applying soil remediation agents, but there is a problem of poor remediation effect. Therefore, it is very necessary to develop a chemical injection ...

Claims

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Application Information

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IPC IPC(8): B09C1/08
CPCB09C1/08B09C2101/00
Inventor 王继能周敬尧张根生付立群革海银张庆东刘缘缘袁晓红
Owner 云南天朗环境科技有限公司
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