Versatility of fluorene metabolite (phenol) in fluorene biodegradation by a sulfate reducing culture

Mathava Kumar, Wei Chih Liao, Jen Chieh Tsai, Jih-Gaw Lin*

*此作品的通信作者

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

Biodegradability of fluorene and the versatility of fluorene metabolite (i.e. phenol) in fluorene biodegradation by a sulfate-reducing enrichment culture were investigated. Batch experiments (with 5mgl-1 fluorene) were designed via the central composite design to examine the effects of sulfate (5-35mM) and biomass (5-50mgl-1) concentrations (variables) on fluorene degradation (response). The experimental results revealed that fluorene removal was more influenced by the biomass concentration than the sulfate concentration. The optimal sulfate and biomass concentrations for fluorene biodegradation (90% removal) were found to be 14.4mM and 37.8mgl-1, respectively. Under the optimal conditions, a set of biodegradation experiments were repeated to evaluate both the biodegradability of fluorene metabolite and the potential effect of phenol accumulation on fluorene degradation. The outcomes indicated a slow phenol degradation rate, i.e. 0.02mgl-1d-1. Moreover, a small reduction in the fluorene biodegradation efficiency was observed in the presence and accumulation of phenol. However, this sulfate reducing culture is a valuable resource for the simultaneous degradation of fluorene and phenol.

原文English
頁(從 - 到)522-526
頁數5
期刊International Biodeterioration and Biodegradation
65
發行號3
DOIs
出版狀態Published - 1 6月 2011

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