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Induced bioelectrochemical metabolism for bioremediation of petroleum refinery wastewater: Optimization of applied potential and flow of wastewater.
Bioresour Technol. 2018 Jul; 260:227-232.BT

Abstract

Hybrid based bioelectrochemical system (BES) configured with embedded anode and cathode electrodes in soil was tested for the bioelectrochemical degradation of petroleum refinery wastewater (PRW). Four applied potentials were studied to optimize under batch mode operation, among which 2 V resulted in higher COD degradation (69.2%) and power density (725 mW/m2) during 7 days of operation. Further studies with continuous mode of operation at optimized potential (2 V) showed that hydraulic retention time (HRT) of 19 h achieved the highest COD removal (37%) and highest power density (561 mW/m2). BES function with respect to treatment efficiencies of other pollutants of PRW was also identified with respect to oil and grease (batch mode, 91%; continuous mode, 34%), total dissolved salts (batch mode, 53%; continuous mode, 24%) and sulfates (batch mode, 59%; continuous mode, 42%). Soil microenvironment in association with BES forms complex processes, providing suitable conditions for efficient treatment of PRW.

Authors+Show Affiliations

Department of Civil and Architectural Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar.Department of Civil and Architectural Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar. Electronic address: riyadh@qu.edu.qa.Department of Chemical Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29626782

Citation

Mohanakrishna, Gunda, et al. "Induced Bioelectrochemical Metabolism for Bioremediation of Petroleum Refinery Wastewater: Optimization of Applied Potential and Flow of Wastewater." Bioresource Technology, vol. 260, 2018, pp. 227-232.
Mohanakrishna G, Al-Raoush RI, Abu-Reesh IM. Induced bioelectrochemical metabolism for bioremediation of petroleum refinery wastewater: Optimization of applied potential and flow of wastewater. Bioresour Technol. 2018;260:227-232.
Mohanakrishna, G., Al-Raoush, R. I., & Abu-Reesh, I. M. (2018). Induced bioelectrochemical metabolism for bioremediation of petroleum refinery wastewater: Optimization of applied potential and flow of wastewater. Bioresource Technology, 260, 227-232. https://doi.org/10.1016/j.biortech.2018.03.122
Mohanakrishna G, Al-Raoush RI, Abu-Reesh IM. Induced Bioelectrochemical Metabolism for Bioremediation of Petroleum Refinery Wastewater: Optimization of Applied Potential and Flow of Wastewater. Bioresour Technol. 2018;260:227-232. PubMed PMID: 29626782.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Induced bioelectrochemical metabolism for bioremediation of petroleum refinery wastewater: Optimization of applied potential and flow of wastewater. AU - Mohanakrishna,Gunda, AU - Al-Raoush,Riyadh I, AU - Abu-Reesh,Ibrahim M, Y1 - 2018/03/29/ PY - 2018/03/11/received PY - 2018/03/26/revised PY - 2018/03/27/accepted PY - 2018/4/8/pubmed PY - 2018/5/31/medline PY - 2018/4/8/entrez KW - Applied potential KW - Chemical oxygen demand (COD) KW - Ecological restoration KW - Sulfate reduction KW - Total dissolved salts KW - Total petroleum hydrocarbons SP - 227 EP - 232 JF - Bioresource technology JO - Bioresour. Technol. VL - 260 N2 - Hybrid based bioelectrochemical system (BES) configured with embedded anode and cathode electrodes in soil was tested for the bioelectrochemical degradation of petroleum refinery wastewater (PRW). Four applied potentials were studied to optimize under batch mode operation, among which 2 V resulted in higher COD degradation (69.2%) and power density (725 mW/m2) during 7 days of operation. Further studies with continuous mode of operation at optimized potential (2 V) showed that hydraulic retention time (HRT) of 19 h achieved the highest COD removal (37%) and highest power density (561 mW/m2). BES function with respect to treatment efficiencies of other pollutants of PRW was also identified with respect to oil and grease (batch mode, 91%; continuous mode, 34%), total dissolved salts (batch mode, 53%; continuous mode, 24%) and sulfates (batch mode, 59%; continuous mode, 42%). Soil microenvironment in association with BES forms complex processes, providing suitable conditions for efficient treatment of PRW. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/29626782/Induced_bioelectrochemical_metabolism_for_bioremediation_of_petroleum_refinery_wastewater:_Optimization_of_applied_potential_and_flow_of_wastewater_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(18)30484-X DB - PRIME DP - Unbound Medicine ER -