期刊
BIORESOURCE TECHNOLOGY
卷 197, 期 -, 页码 244-251出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.08.081
关键词
Microbial fuel cell; Membrane; On line sticker biosensor; Wastewater shock; Open circuit potential (OCP)
Novel flat membrane-based microbial fuel cell (MMFC) sensors were developed by compacting two filter membranes coated with carbon ink. High micro-porosity and hydrophilicity of membranes offered the distinct advantages of short acclimation period (couple hours), simple compact configuration with microliter size, and high sensitivity and stability. MMFC sensors were examined at two toxic shocks (chromium and nickel) in a batch-mode test chamber, and rapidly responded to shock types and concentrations. The variation of voltage output was correlated with open circuit potential (OCP). Filter membranes facilitated bacterial attachment and shortened acclimation. The MMFC sensors showed good reusability and recovered several days after toxic shocks. The robustness of MMFC sensors was validated through 1-month tests. The stability of sensor signals was examined with coefficient of variance (CV) statistical analysis. The flat microliter MMFC has a great potential as on-line sticker sensor for real time in situ monitoring of wastewater quality. Published by Elsevier Ltd.
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