Performance of a membrane bioreactor used for the treatment of wastewater contaminated with heavy metals

Katsou, E; Malamis, S; Loizidou, M

dc.contributor.author	Katsou, E	en
dc.contributor.author	Malamis, S	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T01:36:37Z
dc.date.available	2014-03-01T01:36:37Z
dc.date.issued	2011	en
dc.identifier.issn	0960-8524	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21365
dc.subject	Fouling	en
dc.subject	Heavy metals	en
dc.subject	Membrane bioreactor	en
dc.subject	Toxicity	en
dc.subject	Vermiculite	en
dc.subject.classification	Agricultural Engineering	en
dc.subject.classification	Biotechnology & Applied Microbiology	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	Autotrophic biomass	en
dc.subject.other	Biological reactor	en
dc.subject.other	Biomass growth	en
dc.subject.other	Heterotrophic biomass	en
dc.subject.other	Membrane bioreactor	en
dc.subject.other	Metal concentrations	en
dc.subject.other	Metal removal	en
dc.subject.other	Removal efficiencies	en
dc.subject.other	Sludge flocs	en
dc.subject.other	Ultra-filtration membranes	en
dc.subject.other	Vermiculite	en
dc.subject.other	Adsorption	en
dc.subject.other	Bioconversion	en
dc.subject.other	Biological water treatment	en
dc.subject.other	Biomass	en
dc.subject.other	Bioreactors	en
dc.subject.other	Clay minerals	en
dc.subject.other	Copper	en
dc.subject.other	Ecology	en
dc.subject.other	Lead	en
dc.subject.other	Lead removal (water treatment)	en
dc.subject.other	Membrane fouling	en
dc.subject.other	Membranes	en
dc.subject.other	Metal ions	en
dc.subject.other	Metals	en
dc.subject.other	Toxicity	en
dc.subject.other	Ultrafiltration	en
dc.subject.other	Wastewater	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Zinc	en
dc.subject.other	Zinc compounds	en
dc.subject.other	Chemicals removal (water treatment)	en
dc.subject.other	copper	en
dc.subject.other	lead	en
dc.subject.other	metal ion	en
dc.subject.other	nickel	en
dc.subject.other	vermiculite	en
dc.subject.other	zinc	en
dc.subject.other	adsorption	en
dc.subject.other	autotrophy	en
dc.subject.other	biomass	en
dc.subject.other	bioreactor	en
dc.subject.other	fouling	en
dc.subject.other	heavy metal	en
dc.subject.other	heterotrophy	en
dc.subject.other	membrane	en
dc.subject.other	performance assessment	en
dc.subject.other	pollutant removal	en
dc.subject.other	sludge	en
dc.subject.other	toxicity	en
dc.subject.other	ultrafiltration	en
dc.subject.other	vermiculite	en
dc.subject.other	waste treatment	en
dc.subject.other	wastewater	en
dc.subject.other	adsorption	en
dc.subject.other	article	en
dc.subject.other	autotrophy	en
dc.subject.other	biofouling	en
dc.subject.other	biomass production	en
dc.subject.other	heavy metal removal	en
dc.subject.other	heterotrophy	en
dc.subject.other	membrane reactor	en
dc.subject.other	priority journal	en
dc.subject.other	sludge	en
dc.subject.other	ultrafiltration	en
dc.subject.other	waste water	en
dc.subject.other	waste water management	en
dc.subject.other	Aluminum Silicates	en
dc.subject.other	Biodegradation, Environmental	en
dc.subject.other	Biofouling	en
dc.subject.other	Biological Oxygen Demand Analysis	en
dc.subject.other	Biomass	en
dc.subject.other	Bioreactors	en
dc.subject.other	Membranes, Artificial	en
dc.subject.other	Metals, Heavy	en
dc.subject.other	Nitrification	en
dc.subject.other	Permeability	en
dc.subject.other	Volatilization	en
dc.subject.other	Waste Disposal, Fluid	en
dc.subject.other	Water Pollutants, Chemical	en
dc.subject.other	Water Purification	en
dc.title	Performance of a membrane bioreactor used for the treatment of wastewater contaminated with heavy metals	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.biortech.2010.10.118	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.biortech.2010.10.118	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	In this work the performance of a Membrane bioreactor (MBR) was assessed for the removal of 3-15 mg/l of copper, lead, nickel and zinc from wastewater. The average removal efficiencies accomplished by the MBR system were 80% for Cu(II), 98% for Pb(II), 50% for Ni(II) and 77% for Zn(II). The addition of 5 g/l vermiculite into the biological reactor enhanced metal removal to 88% for copper, 85% for zinc and 60% for nickel due to adsorption of metal ions on the mineral, while it reduced biomass inhibition and increased biomass growth. The metal ions remaining in soluble form penetrated into the permeate, while those attached to sludge flocs were effectively retained by the ultrafiltration membranes. The average hetero-trophic biomass inhibition was 50%, while it reduced to 29% when lower metal concentrations were fed into the reactor in the presence of vermiculite. The respective autotrophic biomass inhibition was 70% and 36%. The presence of heavy metals and vermiculite in the mixed liquor adversely impacted on membrane fouling. (C) 2010 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Bioresource Technology	en
dc.identifier.doi	10.1016/j.biortech.2010.10.118	en
dc.identifier.isi	ISI:000288356300005	en
dc.identifier.volume	102	en
dc.identifier.issue	6	en
dc.identifier.spage	4325	en
dc.identifier.epage	4332	en