TY - JOUR
T1 - Self-provided microbial electricity enhanced wastewater treatment using carbon felt anode coated with amino-functionalized Fe3O4
AU - Liu, Hongbo
AU - Zhang, Yi
AU - Zhou, Yanhong
AU - Chen, Zhongbing
AU - Lichtfouse, Eric
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/12
Y1 - 2020/12
N2 - Bioelectricity can be produced from wastewater using microbial fuel cells (MFCs) that produce electricity during electrochemical and biochemical reactions, yet actual applications of wastewater MFCs are limited; a self-provided microbial electricity enhanced wastewater treatment method is proposed producing microbial power and enhanced pollutants removal simultaneously. A carbon felt coated with amino-functionalized Fe3O4 particles was synthesized; power generation, removal of chemical oxygen demand (COD) and NH4+-N were evaluated with cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), cell voltage and treatment efficiency. Results showed that the amino-Fe3O4 coated anode led to higher NH4+-N removal efficiency of 97.7 % than the Fe3O4 coated anode of 48.9 %. Moreover, the maximum power density of the amino-Fe3O4 anode is 208.67 mW/m2, 35.1 % higher than that of the Fe3O4 anode. This finding was explained by the presence of protonated amino groups NH4+ that favored the attachment of negatively charged bacteria. Amino-functionalization of the anode promotes a promising, novel technology to treat wastewater while producing electricity.
AB - Bioelectricity can be produced from wastewater using microbial fuel cells (MFCs) that produce electricity during electrochemical and biochemical reactions, yet actual applications of wastewater MFCs are limited; a self-provided microbial electricity enhanced wastewater treatment method is proposed producing microbial power and enhanced pollutants removal simultaneously. A carbon felt coated with amino-functionalized Fe3O4 particles was synthesized; power generation, removal of chemical oxygen demand (COD) and NH4+-N were evaluated with cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), cell voltage and treatment efficiency. Results showed that the amino-Fe3O4 coated anode led to higher NH4+-N removal efficiency of 97.7 % than the Fe3O4 coated anode of 48.9 %. Moreover, the maximum power density of the amino-Fe3O4 anode is 208.67 mW/m2, 35.1 % higher than that of the Fe3O4 anode. This finding was explained by the presence of protonated amino groups NH4+ that favored the attachment of negatively charged bacteria. Amino-functionalization of the anode promotes a promising, novel technology to treat wastewater while producing electricity.
KW - Amino-functionalization
KW - Enhanced wastewater treatment
KW - Microbial power production
KW - Microorganism attachment
KW - Self-provided microbial electricity
UR - https://www.scopus.com/pages/publications/85090934935
U2 - 10.1016/j.jwpe.2020.101649
DO - 10.1016/j.jwpe.2020.101649
M3 - 文章
AN - SCOPUS:85090934935
SN - 2214-7144
VL - 38
JO - Journal of Water Process Engineering
JF - Journal of Water Process Engineering
M1 - 101649
ER -