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AuthorMohanakrishna G.
AuthorAl-Raoush R.I.
AuthorAbu-Reesh I.M.
Available date2020-03-18T08:11:10Z
Publication Date2018
Publication NameBioresource Technology
ISSN9608524
URIhttp://dx.doi.org/10.1016/j.biortech.2018.03.122
URIhttp://hdl.handle.net/10576/13385
AbstractHybrid 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. ? 2018 Elsevier Ltd
SponsorThis publication was made possible by NPRP grant # 8-594-2-244 from the Qatar National Research Fund , Qatar (a member of Qatar Foundation). The findings achieved herein are solely the responsibility of the authors.
Languageen
PublisherElsevier Ltd
SubjectApplied potential
SubjectChemical oxygen demand (COD)
SubjectEcological restoration
SubjectSulfate reduction
SubjectTotal dissolved salts
SubjectTotal petroleum hydrocarbons
TitleInduced bioelectrochemical metabolism for bioremediation of petroleum refinery wastewater: Optimization of applied potential and flow of wastewater
TypeArticle
Pagination227 - 232
Volume Number260


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