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Anoxic bio-electrochemical system for treatment of complex chemical wastewater with simultaneous bioelectricity generation.
Bioresour Technol. 2014 Jan; 151:214-20.BT

Abstract

Bioelectrochemical treatment system (BET) with anoxic anodic microenvironment was studied with chemical wastewater (CW) in comparison with anoxic treatment (AxT, sequencing batch reactor (SBR)) with same parent anaerobic consortia. BET system documented relatively higher treatment efficiency at higher organic load (5.0 kg COD/m(3)) accounting for COD removal efficiency of (90%) along with nitrate (48%), phosphate (51%), sulphates (68%), colour (63%) and turbidity (90%) removal, compared to AxT operation (COD, 47%; nitrate, 36%; phosphate, 32%; sulphate, 35%; colour, 45% and turbidity, 54%). The self-induced bio-potential developed due to the electrode assembly in BET resulted in effective treatment with simultaneous bioelectricity generation (631 mA/m(2)). AxT operation showed persistent reduction behaviour, while simultaneous redox behaviour was observed with BET indicating balanced electron transfer. BET operation illustrated higher wastewater toxicity reduction compared to the AxT system which documents the variation in bio-electrocatalytic behaviour of same consortia under different microenvironment.

Authors+Show Affiliations

Bioengineering and Environmental Centre (BEEC), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24240180

Citation

Velvizhi, G, et al. "Anoxic Bio-electrochemical System for Treatment of Complex Chemical Wastewater With Simultaneous Bioelectricity Generation." Bioresource Technology, vol. 151, 2014, pp. 214-20.
Velvizhi G, Goud RK, Venkata Mohan S. Anoxic bio-electrochemical system for treatment of complex chemical wastewater with simultaneous bioelectricity generation. Bioresour Technol. 2014;151:214-20.
Velvizhi, G., Goud, R. K., & Venkata Mohan, S. (2014). Anoxic bio-electrochemical system for treatment of complex chemical wastewater with simultaneous bioelectricity generation. Bioresource Technology, 151, 214-20. https://doi.org/10.1016/j.biortech.2013.10.028
Velvizhi G, Goud RK, Venkata Mohan S. Anoxic Bio-electrochemical System for Treatment of Complex Chemical Wastewater With Simultaneous Bioelectricity Generation. Bioresour Technol. 2014;151:214-20. PubMed PMID: 24240180.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anoxic bio-electrochemical system for treatment of complex chemical wastewater with simultaneous bioelectricity generation. AU - Velvizhi,G, AU - Goud,R Kannaiah, AU - Venkata Mohan,S, Y1 - 2013/10/16/ PY - 2013/07/26/received PY - 2013/10/03/revised PY - 2013/10/09/accepted PY - 2013/11/19/entrez PY - 2013/11/19/pubmed PY - 2014/8/20/medline KW - Bioelectricity KW - Microbial fuel cell (MFC) KW - Nitrates KW - Sequencing batch reactor KW - Sulphates SP - 214 EP - 20 JF - Bioresource technology JO - Bioresour. Technol. VL - 151 N2 - Bioelectrochemical treatment system (BET) with anoxic anodic microenvironment was studied with chemical wastewater (CW) in comparison with anoxic treatment (AxT, sequencing batch reactor (SBR)) with same parent anaerobic consortia. BET system documented relatively higher treatment efficiency at higher organic load (5.0 kg COD/m(3)) accounting for COD removal efficiency of (90%) along with nitrate (48%), phosphate (51%), sulphates (68%), colour (63%) and turbidity (90%) removal, compared to AxT operation (COD, 47%; nitrate, 36%; phosphate, 32%; sulphate, 35%; colour, 45% and turbidity, 54%). The self-induced bio-potential developed due to the electrode assembly in BET resulted in effective treatment with simultaneous bioelectricity generation (631 mA/m(2)). AxT operation showed persistent reduction behaviour, while simultaneous redox behaviour was observed with BET indicating balanced electron transfer. BET operation illustrated higher wastewater toxicity reduction compared to the AxT system which documents the variation in bio-electrocatalytic behaviour of same consortia under different microenvironment. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/24240180/Anoxic_bio_electrochemical_system_for_treatment_of_complex_chemical_wastewater_with_simultaneous_bioelectricity_generation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(13)01608-8 DB - PRIME DP - Unbound Medicine ER -