|
|
Review of Anaerobic Dechlorination of High Concentrated Trichloroethylene in Groundwater |
Hai-Zhu HU1, |
|
|
Abstract: Trichloroethylene (TCE) is an organic solvent widely used in industry and commonly exists in soil and groundwater, while high concentrated TCE may lead to persistent pollution. Based on the feasibility of the degradation of high concentrated TCE, the pathway of anaerobic reductive dechlorination and the main factors influencing degradation, i.e., electron donor and microorganism, were reviewed in this paper. Meanwhile, we discussed the impact of pH and various restricting factors on the degree and the rate of reductive dechlorination. Commonly used kinetic models for the reductive degradation kinetics were listed and compared. The trend of future research was discussed. In experiment, selecting and cultivating of dechlorination bacterium which can survive in source zones with high concentrated chlorinated ethene and the effect of electron donor substrates need further study. In numerical simulation, models are required for comprehensive simulation of biological reaction, hydrogeochemical reaction, as well as physical flow and multi-species transport in groundwater. Moreover, parameters in these models lack verification, which need further study.
|
Received: 05 July 2010
|
|
|
|
|
[1] |
ZHANG Fengjun;JIA Han;LI Chenyang;MENG Qingling;ZHAO Jing;LÜCong. Experimental Study on the Removal of Benzene and Xylene Contained in Groundwater by Biosparging Technology[J]. , 2013, 31(19): 53-57. |
[2] |
ZHANG Bo;SUN Fasheng;WANG Fan;TU Jianghan;ZHOU Ziqing;DONG Jingjing. Application of HYDRUS-1D in the Process-based Evaluation of Groundwater Pollution[J]. , 2013, 31(17): 37-40. |
[3] |
DONG Pei;WANG Xusheng;WAN Li;QIAN Jing. Characteristics of the Overlying Sediments in Yungang Grottoes and Its Impact on Surface Water Infiltration[J]. , 2013, 31(10): 62-66. |
[4] |
HAN Zaisheng;LI Yao;WANG Hao;HE Jing. Research on Transboundary Aquifers: International Development Progress and Their Practice in Asia[J]. , 2012, 30(5): 57-66. |
[5] |
ZHANG Fengjun;WANG Sijia;MA Hui;LV Cong;WANG Yubo. Contaminations and Remediation Technologies of Trichloroethylene and Perchloroethylene in the Soil and Groundwater: A Review[J]. , 2012, 30(18): 65-72. |
[6] |
HONG Mei;WANG Dong;LI Yingquan;WANG Aimin;ZHUANG Hui. Experiment on the Remediation Chlorobenzene-contaminated Groundwater by Using Immobilized Microorganisms[J]. , 2012, 30(13): 21-24. |
|
|
|
|