High tolerance of and removal of cefazolin sodium in single-chambermicrobial fuel cells operation

Enren Zhanga,*, Qingling Yua, Wenjing Zhaia, Feng wanga, Keith Scottb

a School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou City 225002, China

b School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle NE1 7RU, United Kingdom

*Corresponding author. Email: babyphotomail@qq.com, erzhang@yzu.edu.cn (E. Zhang)

Abstract

Single-chamber microbial fuel cells (MFCs) have been shown to be a promising approach for cefazolin sodium (CFZS)-contaminated wastewater treatment, in terms of electricity production, high CFZS tolerance and effective CFZS removal.MFCs exposed to CFZS loadings up to 100 mg L-1, produced stable power of 18.2±1.1W m-3and a maximum power of 30.4±2.1 W m-3, similar to that of CFZS-free MFCs (stable power19.4±0.8 W m-3and maximum power 32.5±1.6W m-3),notwithstanding a longeracclimitisation MFC activation. Moreanodophilic genera (i.e.Acinetobacter,Stenotrophomonas, Lysinibacillus) and antibiotic-resisting genera (i.e.Dysgonomonas) were enriched in CFZS acclimitised anodes. Both the thickness of biofilms andthe duration of CFZS acclimitisation wereessentialfor the development of high CFZS tolerance(e.g. 450 mg L-1).The inhibition of MFCs by CFZS was reversible.The present MFCs generated a CFZS removal rate of 1.2to 6.8 mg L-1 h-1 without anyapparentinhibition of electricity production.

Bioresource Technology 249 (2018) 76-81. IF= 5.651

文章链接:http://dx.doi.org/10.1016/j.biortech.2017.10.005