Assessment of metal removal, biomass activity and RO concentrate treatment in an MBR-RO system

Malamis, S; Katsou, E; Takopoulos, K; Demetriou, P; Loizidou, M

dc.contributor.author	Malamis, S	en
dc.contributor.author	Katsou, E	en
dc.contributor.author	Takopoulos, K	en
dc.contributor.author	Demetriou, P	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T02:07:52Z
dc.date.available	2014-03-01T02:07:52Z
dc.date.issued	2012	en
dc.identifier.issn	03043894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29618
dc.subject	Concentrate	en
dc.subject	Fixed bed column	en
dc.subject	Heavy metals	en
dc.subject	Membrane bioreactor (MBR)	en
dc.subject	Reverse osmosis (RO)	en
dc.subject.other	Biomass activity	en
dc.subject.other	Column operations	en
dc.subject.other	Concentrate	en
dc.subject.other	Divalent metals	en
dc.subject.other	Fixed bed columns	en
dc.subject.other	Initial stages	en
dc.subject.other	Membrane bioreactor (MBR)	en
dc.subject.other	Metal removal	en
dc.subject.other	Municipal wastewaters	en
dc.subject.other	Removal efficiencies	en
dc.subject.other	RO concentrate	en
dc.subject.other	Bioreactors	en
dc.subject.other	Chromium	en
dc.subject.other	Copper	en
dc.subject.other	Heavy metals	en
dc.subject.other	Lead	en
dc.subject.other	Manganese	en
dc.subject.other	Manganese removal (water treatment)	en
dc.subject.other	Metals	en
dc.subject.other	Reverse osmosis	en
dc.subject.other	Sodium	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Zinc	en
dc.subject.other	Lead removal (water treatment)	en
dc.subject.other	copper	en
dc.subject.other	heavy metal	en
dc.subject.other	lead	en
dc.subject.other	nickel	en
dc.subject.other	zeolite	en
dc.subject.other	zinc	en
dc.subject.other	assessment method	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	osmosis	en
dc.subject.other	pollutant removal	en
dc.subject.other	waste treatment	en
dc.subject.other	wastewater	en
dc.subject.other	zeolite	en
dc.subject.other	article	en
dc.subject.other	biofouling	en
dc.subject.other	biomass	en
dc.subject.other	heavy metal removal	en
dc.subject.other	membrane bioreactor reverse osmosis system	en
dc.subject.other	membrane reactor	en
dc.subject.other	packed bed reactor	en
dc.subject.other	reverse osmosis	en
dc.subject.other	waste water	en
dc.subject.other	waste water management	en
dc.subject.other	Biomass	en
dc.subject.other	Bioreactors	en
dc.subject.other	Equipment Design	en
dc.subject.other	Membranes, Artificial	en
dc.subject.other	Metals	en
dc.subject.other	Osmosis	en
dc.subject.other	Water Pollutants, Chemical	en
dc.title	Assessment of metal removal, biomass activity and RO concentrate treatment in an MBR-RO system	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhazmat.2011.10.085	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhazmat.2011.10.085	en
heal.publicationDate	2012	en
heal.abstract	This work investigated the removal of metals from wastewater using a combined Membrane Bioreactor-Reverse Osmosis (MBR-RO) system. The concentrate produced by the RO system was treated by a fixed bed column packed with zeolite. The average metal removal accomplished by the MBR treating municipal wastewater was Cu(90%), Fe(85%), Mn(82%), Cr(80%), Zn(75%), Pb(73%), Ni(67%), Mg(61%), Ca(57%), Na(30%) and K(21%), with trivalent and divalent metals being more effectively removed than monovalent ones. The metal removal achieved by the MBR system treating wastewater spiked with Cu, Pb, Ni and Zn (4-12mgL-1 of each metal) was Pb(96%)>Cu(85%)>Zn(78%)>Ni(48%). The combined MBR-RO system enhanced metal removal from municipal wastewater to the levels of >90.9->99.8%, while for wastewater spiked with heavy metals the removal efficiencies were >98.4%. Fixed bed column packed with zeolite was effective for the removal of Cu, Pb and Zn from the RO concentrate, while Ni removal was satisfactory only at the initial stages of column operation. The presence of heavy metals increased inorganic fouling. © 2011 Elsevier B.V..	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/j.jhazmat.2011.10.085	en
dc.identifier.volume	209-210	en
dc.identifier.spage	1	en
dc.identifier.epage	8	en