A horizontal plug-flow baffled bioelectrocatalyzed reactor for the reductive decolorization of Alizarin Yellow R

被引：16
作者：
Sun, Qian [1 ]
Li, Zhiling [1 ]
Wang, Youzhao [1 ]
Cui, Dan [2 ]
Liang, Bin [2 ]
Thangavel, Sangeetha [1 ]
Chung, Jong Shik [3 ,4 ]
Wang, Aijie [1 ,2 ]
机构：
[1] Harbin Inst Technol, State Key Lab Urban Water Resources & Environm, Harbin 150090, Peoples R China
[2] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China
[3] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Pohang 790784, South Korea
[4] Res Inst Ind Sci & Technol, Div Environm Catalysis, Pohang 790600, South Korea
来源：
BIORESOURCE TECHNOLOGY | 2015年 / 195卷
基金：
美国国家科学基金会;
关键词：
Plug-flow baffled bioelectrocatalyzed reactor (PFB-BER); Alizarin Yellow R (AYR); Decolorization efficiency (DE); Electrode assembly number; AZO-DYE REMOVAL; BIOCATALYZED ELECTROLYSIS SYSTEM; MICROBIAL FUEL-CELL; BIOELECTROCHEMICAL SYSTEM; DEGRADATION; GENERATION; BIOCATHODE; DEPLOYMENT; RED;
D O I：
10.1016/j.biortech.2015.06.086
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
An application-oriented membrane-free, continuous plug-flow baffled bioelectrocatalyzed reactor (PFB-BER), was designed and testified for the decolorization of Alizarin Yellow R. Decolorization efficiency (DE) with an external power source of 0.5 V was higher than without electrolysis, i.e. 93.4% versus 73.6% (HRT of 24 h). Product formation efficiencies of p-phenylenediamine and 5-aminosalicylic acid were above 95% and 50%, respectively. When HRT decreased to 8 h and 4 h, DE reduced to 69.9% and 44.9%, respectively. An additional electrode assembly improved DE to 96.4% (HRT of 8 h) and 80% (HRT of 4 h), while energy consumption (HRT of 4 h) was lower than that of HRT of 12 h with single electrode assembly under comparable DE. The PFB-BER with higher removal capacity, lower internal resistance and energy consumption provides a new solution to treat the high loading azo dye-containing wastewaters. (C) 2015 Published by Elsevier Ltd.
引用
收藏
页码：73 / 77
页数：5
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