Optimization of Heavy Metal Removal by Sulfate Reducing Bacteria in a High Concentration Zn-fed Fixed Bed Bioreactor Using Plackett Burman Design Experiments

2018 9th International Conference on Environmental Science and Technology

生态环境科学

Gu, Qiyuan^1 ; Cui, Xinglan^1 ; Liu, Xingyu^1 ; Shang, He^1 ; Wen, Jiankang^1

National Engineering Laboratory of Biohydrometallurgy, GRIMAT Engineering Institute Co., Ltd. (GRIMAT), Beijing

101407, China^1

关键词: Fixed-bed bioreactor;    High-throughput sequencing;    Metal removal process;    Microbial communities;    Operational process;    Plackett-Burman design of experiment;    Plackett-Burman designs;    Sulfate reducing bacteria;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/182/1/012012/pdf
DOI  :  10.1088/1755-1315/182/1/012012

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This study evaluated the combined effect of six processing factors on Zn, Cd removal and sulfate reducing by sulfate reducing bacteria in a high concentration Zn-fed fixed bed bioreactor. Statistically valid Plackett Burman design of experiments was employed to carry out this study. The results obtained showed a high removal of Zn (99.63%), Cd (99.73%) at a maximum influent Zn concentration of 320 mg/L. Analysis of variance (ANOVA) of Zn and Cd removal revealed that the effect due to glycerol dosage and reflux ratio were highly significant (P value