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dc.contributor.authorWakjera, Eshetu Janka
dc.contributor.authorCarvajal Rodriguez, Diego Armando
dc.contributor.authorWang, Shuai
dc.contributor.authorBakke, Rune
dc.contributor.authorSaldias Dinamarca, Carlos Antonio
dc.date.accessioned2020-04-07T07:15:07Z
dc.date.available2020-04-07T07:15:07Z
dc.date.created2019-12-11T11:44:09Z
dc.date.issued2019
dc.identifier.citationJanka, E., Carvajal, D., Wang, S., Bakke, R., & Dinamarca, C. (2019). Treatment of Metformin-Containing Wastewater by a Hybrid Vertical Anaerobic Biofilm-Reactor (HyVAB). International Journal of Environmental Research and Public Health 16(21), 4125.en_US
dc.identifier.issn1660-4601
dc.identifier.urihttps://hdl.handle.net/11250/2650563
dc.description.abstractSeveral series of batch and continuous experiments were performed to investigate the removal of metformin and other contaminants from two wastewaters: wastewater I (WWI) containing 4 mg/L metformin and wastewater II (WWII) containing 110 g/L butanol. Biomethane potential (BMP) tests on WWII showed 77% of total chemical oxygen demand (tCOD = 110 g/L) degradability, and no apparent inhibition effects were observed. BMP tests on WWI showed an apparent inhibitory effect reflected in lower biogas production with increasing metformin concentration in the wastewater. Continuous flow hybrid vertical anaerobic biofilm (HyVAB®) experiments were consistent with the batch test findings. It was necessary to co-digest WWI (metformin) with WWII (easily degradable organics) to achieve complete metformin removal. After a period of adaptation, WWI and WWII co-digestion achieved up to 98% tCOD removal and 100% metformin removal. Most of the contaminants were removed in the anaerobic section of the HyVAB®, which implies that higher chemical oxygen demand (COD) loads than tested here are possible, given some optimization. The pilot reactor was able to manage organic loads of 11 g COD/d and above 10 mg/L metformin with a removal of 98% and 100% for tCOD and metformin, respectivelyen_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleTreatment of Metformin-Containing Wastewater by a Hybrid Vertical Anaerobic Biofilm-Reactor (HyVAB)en_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2019 by the authorsen_US
dc.source.pagenumber11en_US
dc.source.volume16en_US
dc.source.journalInternational Journal of Environmental Research and Public Healthen_US
dc.source.issue21en_US
dc.identifier.doi10.3390/ijerph16214125
dc.identifier.cristin1759234
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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