A composite microbial agent and its application in remediation or control of chlorinated hydrocarbon contaminated sites

Through the synergistic degradation of chlorinated hydrocarbons by using a specific proportion of composite microbial agents and slow-release oxygen materials, the problem of remediation of chlorinated hydrocarbon-contaminated sites was solved, and efficient and low-cost pollution control effects were achieved.

CN120249145BActive Publication Date: 2025-09-23JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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Patent Information

Application Number
CN202510698452.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2025-09-23
Estimated Expiration
2045-05-28

AI Technical Summary

Technical Problem

Existing technologies make it difficult to efficiently and environmentally remediate or control chlorinated hydrocarbon contaminated sites, especially DNAPL contamination in soil and groundwater. Traditional methods have the risk of secondary pollution, high energy consumption, or damage to soil structure.

Method used

A composite microbial agent of Gordonia, Pseudomonas, Pseudomonas Xanthomonas and Terrestriae in a specific proportion, combined with slow-release oxygen materials and trace elements, degrades chlorinated hydrocarbons through synergistic effects, forms a biofilm to protect the bacterial community, improves soil structure and provides a continuous oxygen source.

Benefits of technology

It improves the efficiency of remediation and risk management of chlorinated hydrocarbon contaminated sites, reduces costs, and achieves green and efficient pollution source reduction and risk control. It is suitable for DNAPL pollution in silty soil and groundwater.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a composite microbial agent and its use in the remediation or management of chlorinated hydrocarbon contaminated sites. The composite microbial agent comprises composite microorganisms, wherein the composite microorganisms include Gordonia, Pseudomonas, Pseudomonas, and Terrestria in a viable cell count ratio of 100:(25-600):(10-900):(10-500). The present invention effectively addresses the difficulty in remediating chlorinated hydrocarbon contaminated sites, overcomes the problems of low mass transfer efficiency and limited microbial activity of traditional remediation technologies, and improves the efficiency of remediation and risk management of chlorinated hydrocarbon contaminated sites. The agent is particularly suitable for green and efficient remediation of soil and groundwater in silty soil sites, pollution source reduction, and risk management. Furthermore, the agent offers advantages such as low cost and ease of operation, and thus has significant application prospects.
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Citation Information

Patent Citations

  • Strain of Pseudoxanthomonas mexicana and controlled release composition which contain said strain

    EP2738267A1

  • Environmental remediation method

    US20050077249A1