期刊
BIOMASS & BIOENERGY
卷 69, 期 -, 页码 249-254出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2014.07.024
关键词
Organic loading rate; Coulombic efficiency; Power density; 16s rRNA sequencing; Ochrobactrum sp RA1
Dual chamber microbial fuel cell (MFC) operated at fed batch mode for the treatment of retting wastewater has potently achieved both current generation and phenol removal. Hydraulic retention time (HRT) of the reactor was varied from 40 days to 10 days. COD (chemical oxygen demand) removal was 91% at 40 days HRT, with an initial COD concentration of 530 +/- 50 g m(-3). Retting wastewater with an initial phenol concentration of 320 +/- 60 g m(-3) procured a highest phenol removal of 93% at 40 days HRT of the microbial fuel cell. Maximum power density of 362 mW m(-2) was achieved using retting wastewater at HRT of 20 days with an internal resistance of 150 Omega in a dual chambered MFC. The bacterial strains in anode region, reported to be responsible for potential phenol removal, were identified as Ochrobactrum sp. RA1 (KJ408266), Ochrobactrum sp. RA2 (KJ408267) and Pesudomonas aeruginosa RA3 (KJ408268) using phylogenetic analysis. The study reveals that, dual chambered MFC effectively removed the phenol from retting wastewater along with power generation. (C) 2014 Elsevier Ltd. All rights reserved.
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