Biodesulfurization of Turkish lignites .1. Optimization of the growth parameters of Rhodococcus rhodochrous, a sulfur-removing bacterium

被引:34
作者
Bozdemir, TO [1 ]
Durusoy, T [1 ]
Erincin, E [1 ]
Yurum, Y [1 ]
机构
[1] HACETTEPE UNIV,DEPT CHEM,TR-06532 ANKARA,TURKEY
关键词
coal; biodesulfurization; Rhodococcus rhodochrous;
D O I
10.1016/0016-2361(96)00118-4
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The effects of inoculum percentage, initial pH, growth temperature, shaking rate, substrate type and initial substrate concentration on the growth kinetics of Rhodococcus rhodochrous, a sulfur-removing bacterium, were investigated. The optimum value for each parameter that favoured the maximum specific growth rate was calculated from models established through linear of non-linear regression of the relevant data. Around these optima, biodesulfurization experiments were performed with sterile lignite. An increase in sulfate, pyritic and organic sulfur reduction with increasing reaction time were observed. The highest decreases in the total (30.2%) and organic sulfur (27.1%) contents were obtained with Mengen lignite at 75 h of biodesulfurization. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:1596 / 1600
页数:5
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