Biodegradation of phenol by calcium-alginate immobilized Bacillus cereus in a packed bed reactor and determination of the mass transfer correlation

被引：35
|
作者：
Banerjee, Aditi [1 ]
Ghoshal, Aloke K. [1 ,2 ]
机构：
[1] Indian Inst Technol, Ctr Environm, Gauhati 781039, Assam, India
[2] Indian Inst Technol, Dept Chem Engn, Gauhati 781039, Assam, India
来源：
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2016年 / 4卷 / 02期
关键词：
Phenol biodegradation; Packed bed reactor; Bacillus cereus; External film diffusion; Mass transfer coefficient;
D O I：
10.1016/j.jece.2016.02.012
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Biodegradation of phenol by calcium-alginate immobilized Bacillus cereus AKG1 MTCC9817 and B. cereus AKG2 MTCC9818 in a re-circulated up-flow packed bed reactor was performed. The observed biodegradation rate constants were calculated at various flow rates by assuming first-order biodegradation kinetics. The effect of external mass transfer combined with intrinsic biodegradation reaction on the observed biodegradation was investigated by the correlation between the Colburn factor (JD) and Reynolds number (N-Re) as JD = K N-Re (-(1-n)) with values of K and n in the range of present experimentation as 1.34 and 0.35, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1523 / 1529
页数：7
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