Kinetic analysis of the inhibitory effect of trichloroethylene (TCE) on nitrification in cometabolic degradation

被引：34

作者：

Kocamemi, Bilge Alpaslan ^{[1
]}

Cecen, Ferhan

机构：

[1] Univ Marmara, Dept Environm Engn, Istanbul, Turkey

[2] Bogazici Univ, Inst Environm Sci, Istanbul, Turkey

来源：

BIODEGRADATION | 2007年 / 18卷 / 01期

关键词：

cometabolism; kinetics; modelling; nitrification; trichloroethylene;

D O I：

10.1007/s10532-005-9037-3

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

In this study, the inhibitory effect of TCE on nitrification process was investigated with an enriched nitrifier culture. TCE was found to be a competitive inhibitor of ammonia oxidation and the inhibition constant (K-I) was determined as 666-802 mu g/l. The TCE affinity for the AMO enzyme was significantly higher than ammonium. The effect of TCE on ammonium utilization was evaluated with linearized plots of Monod equation (e.g., Lineweaver-Burk, Hanes-Woolf and Eadie-Hofstee plots) and non-linear least square regression (NLSR). No significant differences were found among these data evaluation methods in terms of kinetic parameters obtained.

引用

页码：71 / 81

页数：11

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