Biosorption and biodegradation of trichloroethylene by acclimated activated sludge

被引：6
作者：
Yang, Qi [2 ]
Shang, Haitao [2 ]
Wang, Jianlong [1 ]
机构：
[1] Tsinghua Univ, INET, Lab Environm Technol, Beijing 100084, Peoples R China
[2] China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION | 2009年 / 38卷 / 03期
基金：
中国国家自然科学基金;
关键词：
TCE; trichloroethylene; biodegradation; cometabolism; biosorption; Freundlich isotherm; activate sludge; BIOREMEDIATION; FEASIBILITY; REMOVAL; FIELD;
D O I：
10.1504/IJEP.2009.027229
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The biosorprion and biodegradation of trichloroethylene (TCE) was investigated. The experimental results showed that at 25 degrees C the adsorption equilibrium of TCE at concentrations from 10 mg/L to 200 mg/L could be described by the Freundlich isotherm. Adsorption could complete within 15 min. Results indicated that glucose could serve as a co-substrate and enhance TCE biodegradation through co-metabolism. The TCE biodegradation conformed to the first-order reaction kinetic, and the rate constant was 0.3212 day(-1) at 25 degrees C. In addition, results also indicated that TCE could serve as the sole substrate and be biodegraded under aerobic condition. No intermediate products such as DCE and VC were accumulated during the degradation.
引用
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页码：289 / 298
页数：10
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