Bio-electrochemical reduction of nitrate utilizing MWCNT supported on carbon base electrodes: A comparison study

被引:22
作者
Safari, Mahdi [1 ]
Rezaee, Abbas [1 ]
Ayati, Bita [2 ]
Jonidi-Jafari, Ahmad [3 ]
机构
[1] Tarbiat Modares Univ, Fac Med Sci, Dept Environm Hlth, Tehran, Iran
[2] Tarbiat Modares Univ, Fac Civil & Environm Engn, Dept Environm Engn, Tehran, Iran
[3] Iran Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran
关键词
Bio-electrochemical; Nitrate; MWCNT; Carbon felt; Carbon cloth; Graphite; MICROBIAL FUEL-CELLS; AUTOTROPHIC DENITRIFICATION; NITROGEN REMOVAL; WASTE-WATER; FELT; GROUNDWATER; CATHODE;
D O I
10.1016/j.jtice.2014.05.006
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In the present study, carbon felt, carbon cloth and graphite were evaluated as a support material for immobilization of multi-wall carbon nanotube (MWCNT) in a dual chamber bio-electrochemical reactor (BER). Effect of operating parameters, such as current density, pH, and retention time on reduction efficiency were assessed. The results of the study showed that in the optimum operating conditions, nitrate reduction efficiency were about 83.58%, 79.56% and 63.98% for MWCNT/carbon felt, MWCNT/carbon cloth and MWCNT/graphite cathodes, respectively. Overall results indicate that carbon felt can serve as a support for modification of cathode by MWCNT in a BER. (C) 2014 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:2212 / 2216
页数:5
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