Prediction of growth and biotransformation rates of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in the presence of barium

被引：1
|
作者：
Young, DM [1 ]
Young, K [1 ]
Ogden, KL [1 ]
机构：
[1] Univ Arizona, Dept Environm Chem & Engn, Tucson, AZ 85721 USA
来源：
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY | 2005年 / 68卷 / 03期
关键词：
D O I：
10.1007/s00253-004-1875-0
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：
The biotransformation of explosives has been investigated by many researchers. Bioremediation of soil and water contaminated with hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is becoming the method of choice for clean-up of a variety of sites. In this study, we investigated biotransformation of RDX in the presence of barium. Ba is a metal commonly found in combination with RDX at sites requiring remediation. RDX was biotransformed by both a consortium of bacteria and an isolate from the consortium under anoxic conditions using a rich medium. However, Ba inhibited cell growth under both aerobic and anoxic conditions and slowed biotransformation rates by 40%. RDX and Ba inhibited growth of the isolate more than growth of the consortium. An additive inhibition model is proposed that accurately predicts the reduced growth rates observed.
引用
收藏
页码：376 / 383
页数：8
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