| 不同基质作为电子供体时四氯乙烯的降解研究 |
| |
| 引用本文： | 李惠娣,杨琦,尚海涛.不同基质作为电子供体时四氯乙烯的降解研究[J].安全与环境工程,2006,13(4):45-49. |
| |
| 作者姓名： | 李惠娣 杨琦 尚海涛 |
| |
| 作者单位： | 1. 中国地质科学院地质力学研究所,北京,100081
2. 中国地质大学水资源与环境学院,北京,100083 |
| |
| 摘 要： | 将取回的厌氧污泥进行培养、驯化,并用驯化好的厌氧污泥进行PCE的厌氧生物降解研究。实验选用甲醇、乳酸盐和醋酸盐作为电子供体,对PCE的降解进行研究。实验结果表明:PCE通过还原脱氯实现其降解,在本实验条件下PCE的降解均符合一级反应动力学。通过对反应速率常数(k)的比较发现,乳酸盐是最有效的电子供体。
|
| 关 键 词： | 四氯乙烯(PCE) 电子供体 生物降解 动力学 反应速率常数 |
| 文章编号： | 1671-1556(2006)04-0045-05 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006年5月22日 |
Study on Biodegradation of Tetrachloroethylene with Various Substrates as Electron Donors |
| |
| LI Hui-di,YANG Qi,SHANG Hai-tao.Study on Biodegradation of Tetrachloroethylene with Various Substrates as Electron Donors[J].Safety and Environmental Engineering,2006,13(4):45-49. |
| |
| Authors: | LI Hui-di YANG Qi SHANG Hai-tao |
| |
| Institution: | 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China; 2. School of Water Resources and Environmental Engineering, China University of Geosciences, Beijing 100083, China |
| |
| Abstract: | Anaerobic sludge obtained was cultivated and acclimated,and PCE biodegradation was studied by acclimated sludge.PCE degradation was carried out when methanol,lactate,and acetate were used as electron donors.Results show that PCE was degraded by reductive dechlorination.Results also indicate that PCE degradation met first-order kinetics during these experiments.Comparison results of reaction rate constants show that lactate was the most effective electron donor. |
| |
| Keywords: | tetrachloroethylene(PCE) electron donor biodegradation kinetics reaction rate constant |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
