Pedosphere 35(1): 137--150, 2025
ISSN 1002-0160/CN 32-1315/P
©2025 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Remediation of trichloromethane-contaminated soil and groundwater using microorganisms and iron-based materials: A review |
Hongtao SHENG1,2, Zhenyu KANG2, Zhen NI2, Hangyu LI2, Yuqing WANG2, Mengfang CHEN2, Jianjun CAO1 , Linbo QIAN2 |
1 College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070 (China);
2 Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135 (China) |
| ABSTRACT |
| New pollutants have become a significant concern in China’s efforts toward ecological and environmental protection. Trichloromethane (TCM, CHCl3), one of these new pollutants, is primarily released into soil and groundwater through various industrial activities. Over the past four decades, researchers have consistently focused on the remediation of TCM-contaminated soil and groundwater using microorganisms and iron-based materials, which hold significant potential for practical application. Understanding the remediation process and the factors influencing TCM degradation through these two methods is crucial for advancing both theoretical research and practical implementation. This review focuses on the degradation mechanisms of TCM in soil and groundwater by microorganisms and iron-based materials. It summarizes the active microorganisms and modified iron-based materials with high TCM degradation capabilities, discusses enhancement measures for both methods in the remediation process, and finally, outlines the challenges faced by these methods. The goal is to provide theoretical references for efficient remediation of TCM-contaminated soil and groundwater. |
| Key Words: challenges,environmental behavior,media,remediation mechanisms,remediation methods,subsurface environments,volatile organic compounds |
| Citation: Sheng H T, Kang Z Y, Ni Z, Li H Y, Wang Y Q, Chen M F, Cao J J, Qian, L B. 2025. Remediation of trichloromethane-contaminated soil and groundwater using microorganisms and iron-based materials: A review. Pedosphere. 35(1): 137-150. |
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