Relationship between growth rate of phenol utilizing bacteria and the toxic effect of metabolic intermediates of trichloroethylene (TCE)

被引：8

作者：

Nakano, Y ^{[1
]}

Nishijima, W ^{[1
]}

Soto, E ^{[1
]}

Okada, M ^{[1
]}

机构：

[1] Hiroshima Univ, Fac Engn, Hiroshima 739, Japan

来源：

WATER RESEARCH | 1999年 / 33卷 / 04期

关键词：

groundwater; specific growth rate; phenol utilizing bacteria; trichloroethylene; toxicity by metabolic intermediates of TCE;

D O I：

10.1016/S0043-1354(98)00265-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The objective of this study is to clarify the effects of growth rate of phenol:utilizing bacteria, on the toxicity of metabolic intermediates of TCE. The specific degradation rates of TCE in the reactor fed with TCE were around 20 to 50% of the reference reactors without TCE when the apparent growth rate was zero, whereas the degradation rates were almost the same when cells were kept in an exponential growth phase. Contrary to the previous studies, the cumulative amount of TCE degradation during one generation was not responsible for the toxic effects by metabolic intermediates of TCE. The toxic effects were dependent on the specific growth rate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1085 / 1089

页数：5

共 21 条

[1] EFFECTS OF TOXICITY, AERATION, AND REDUCTANT SUPPLY ON TRICHLOROETHYLENE TRANSFORMATION BY A MIXED METHANOTROPHIC CULTURE [J].