title: [Development of a low-cost single chamber microbial fuel cell type BOD sensor].
abstract: The principle of the detector is based on the effect of microbial toxicity of water sample on the electricity generation in microbial fuel cell (MFC). The performance of the MFC-type biotoxicity detector was evaluated with the synthetic water containing heavy metals of Cd2+ and Cu2+. The experimental results demonstrated that: (1) relative to the conventional methods, the MFC-type detector is easy to operate, and suitable for on-line measurements with high sensitivity; (2) it only requires 4 h to complete measurements, and can get ready for next measurement within 4 h; (3) there is a significant linear correlation between the concentration of toxic metal(s) and inhibition ratios in Coulombic yields of MFC. As the IC20 (concentration causing 20% inhibition) of Cd2+, Cu2+ and mixed metals (Cd2+ and Cu2+) were 0.6, 0.8 and 0.25 mg/L, the regression coefficients were shown to be 0.9960, 0.9744 and 0.9907.
authors.affiliation: College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China. canboyu@163.com
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
authors.forename: Zhi
authors.initials: Z
authors.lastname: Liu
authors.forename: Ben
authors.initials: B
authors.lastname: Zhou
authors.forename: Shun-gui
authors.initials: SG
authors.lastname: Zhou
authors.forename: Li-qun
authors.initials: LQ
authors.lastname: Rao
authors.forename: Yue-qiang
authors.initials: YQ
authors.lastname: Wang
mesh_terms: D001674:Bioelectric Energy Sources; D057919:Biological Oxygen Demand Analysis; D015374:Biosensing Techniques / Q000295:instrumentation*; D004867:Equipment Design; D019216:Metals, Heavy / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical