Bioelectrochemical treatment of paper and pulp wastewater in comparison with anaerobic process: Integrating chemical coagulation with simultaneous power production

被引：38

作者：

Krishna, K. Vamshi ^{[1
,2
]}

Sarkar, Omprakash ^{[1
]}

Mohan, S. Venkata ^{[1
,2
]}

机构：

[1] Indian Inst Chem Technol, CSIR, Hyderabad 500007, Andhra Pradesh, India

[2] AcSIR, New Delhi, India

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 174卷

关键词：

Color; Lignin; Bioelectricity; COD; Mediators; MICROBIAL FUEL-CELLS; PETROLEUM SLUDGE; PH; REMOVAL; MICROENVIRONMENT; DEGRADATION; PERFORMANCE; SUBSTRATE; BACTERIA; CATHODE;

D O I：

10.1016/j.biortech.2014.09.141

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The efficiency of a bioelectrochemical treatment system (BET) to treat complex paper and pulp wastewater at two different pH conditions (6 and 7) in comparison with conventional anaerobic treatment process (AnT) was evaluated. Among the operating conditions, BET showed good treatment efficiency at pH 7 in terms of COD (BET/AnT: 55%/51%), nitrates (33.5%/19.1%), phosphates (33%/19%) and sulfates (58%/41%) in removal. The effluent obtained from BET system was subjected to coagulation for further treatment which showed good COD removal (BET/AnT, 95%/69%) and color (100%/68%). Bioelectrochemical analysis revealed higher catalytic currents in BET than AnT specific to oxidation and reduction. Besides, derivative of cyclic voltammetric scans (DCV) also supported the involvement of various membrane bound electron transferring complexes like FAD(H) bound enzymes, ubiquinone, NADH(+)/H+ bound enzymes, etc. Experimental results demonstrated that BET system can be a viable platform to treat complex wastewaters with simultaneous energy recovery in integrated approach. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：142 / 151

页数：10

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