Simultaneous sulfate reduction and copper removal by a PVA-immobilized sulfate reducing bacterial culture

Hsiu Feng Hsu, Yu Sheng Jhuo, Mathava Kumar, Ying Shih Ma, Jih-Gaw Lin*

*此作品的通信作者

研究成果: Article同行評審

40 引文 斯高帕斯(Scopus)

摘要

The effect of a sulfate reducing bacteria immobilized in polyvinyl alcohol (PVA) on simultaneous sulfate reduction and copper removal was investigated. Batch experiments were designed using central composite design (CCD) with two parameters, i.e. the copper concentration (10-100 mg/L), and the quantity of immobilized SRB in culture solution (19-235 mg of VSS/L). Response surface methodology (RSM) was used to model the experimental data, and to identify optimal conditions for the maximum sulfate reduction and copper removal. Under optimum condition, i.e. ∼138.5 mg VSS/L of sulfate reducing bacteria immobilized in PVA, and ∼51.5 mg/L of copper, the maximum sulfate reduction rate was 1.57 d-1 as based on the first-order kinetic equation. The data demonstrate that immobilizing sulfate reducing bacteria in PVA can enhance copper removal and the resistance of the bacteria towards copper toxicity.

原文English
頁(從 - 到)4354-4361
頁數8
期刊Bioresource Technology
101
發行號12
DOIs
出版狀態Published - 1 6月 2010

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