Rapid start-up of a bioelectrochemical system under alkaline and saline conditions for efficient oxalate removal
dc.contributor.author | Weerasinghe Mohottige, T. | |
dc.contributor.author | Ginige, M. | |
dc.contributor.author | Kaksonen, A. | |
dc.contributor.author | Sarukkalige, Priyantha Ranjan | |
dc.contributor.author | Cheng, K. | |
dc.date.accessioned | 2018-01-30T07:59:41Z | |
dc.date.available | 2018-01-30T07:59:41Z | |
dc.date.created | 2018-01-30T05:59:00Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Weerasinghe Mohottige, T. and Ginige, M. and Kaksonen, A. and Sarukkalige, P.R. and Cheng, K. 2018. Rapid start-up of a bioelectrochemical system under alkaline and saline conditions for efficient oxalate removal. Bioresource Technology. 250: pp. 317-327. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/60265 | |
dc.identifier.doi | 10.1016/j.biortech.2017.11.009 | |
dc.description.abstract |
This study examined a new approach for starting up a bioelectrochemical system (BES) for oxalate removal from an alkaline (pH > 12) and saline (NaCl 25 g/L) liquor. An oxalotrophic biofilm pre-grown aerobically onto granular graphite carriers was used directly as both the microbial inoculum and the BES anode. At anode potential of +200 mV (Ag/AgCl) the biofilm readily switched from using oxygen to graphite as sole electron acceptor for oxalate oxidation. BES performance was characterised at various hydraulic retention times (HRTs, 3–24 h), anode potentials (-600 to +200 mV vs. Ag/AgCl) and influent oxalate (25 mM) to acetate (0–30 mM) ratios. Maximum current density recorded was 363 A/m 3 at 3 h HRT with a high coulombic efficiency (CE) of 70%. The biofilm could concurrently degrade acetate and oxalate (CE 80%) without apparent preference towards acetate. Pyro-sequencing analysis revealed that known oxalate degraders Oxalobacteraceae became abundant signifying their role in this novel bioprocess. | |
dc.publisher | Elsevier BV | |
dc.title | Rapid start-up of a bioelectrochemical system under alkaline and saline conditions for efficient oxalate removal | |
dc.type | Journal Article | |
dcterms.source.volume | 250 | |
dcterms.source.startPage | 317 | |
dcterms.source.endPage | 327 | |
dcterms.source.issn | 0960-8524 | |
dcterms.source.title | Bioresource Technology | |
curtin.department | School of Civil and Mechanical Engineering (CME) | |
curtin.accessStatus | Fulltext not available |
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