光合细菌对咪唑的降解及其动力学初析

研究了紫色非硫光合细菌沼泽红假单胞菌(Rhodopseudomonas palustris)对不同浓度咪唑的降解及其动力学，结果表明，当咪唑初始浓度为1．47mmol／L、4．41mmol／L、7．35mmol／L时，其降解过程比较快，24h内就可以被完全降解，而且降解动力学符合零级反应，当咪唑初始浓度为11．03mmol／L时，咪唑降解过程比其他3个低浓度系列要稍慢一些，但其降解动力学仍然符合零级反应．而当咪唑初始浓度为14．7mmol／L时，在降解开始的数小时内，咪唑的浓度基本没变化，之后其浓度开始明显减少，其降解动力学不符合零级反应．

Biodegradation of Imidazole by Phosynthetic Bacteria and Analysis of Kinetics of Degradation

The degradation of imidazole of different concertrations and the kinetic were studied by Rhodoseudomonase palustris.It was found that when the initial concertrations were 1.47 mmol/L,4.41 mmol/L and 7.35 mmol/L,imidazole could be removed completely for 24 h;while the initial concertrations were 7.35 and 14.7 mmol/L,imidazole could be removed a little for 24 h.But their kinetic except 14.7 mmol/L were fitted in zero-order reaction equations.