Evaluation of the efficiency of a combined adsorption- ultrafiltration system for the removal of heavy metals, color, and organic matter from textile wastewater

Malamis, S; Katsou, E; Haralambous, KJ

dc.contributor.author	Malamis, S	en
dc.contributor.author	Katsou, E	en
dc.contributor.author	Haralambous, KJ	en
dc.date.accessioned	2014-03-01T01:35:39Z
dc.date.available	2014-03-01T01:35:39Z
dc.date.issued	2011	en
dc.identifier.issn	0149-6395	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21148
dc.subject	Activated sludge	en
dc.subject	Color removal	en
dc.subject	Heavy metal removal	en
dc.subject	Minerals	en
dc.subject	Textile wastewater	en
dc.subject	Ultrafiltration	en
dc.subject.classification	Chemistry, Multidisciplinary	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Activated sludge	en
dc.subject.other	COD removal	en
dc.subject.other	Colloidal matter	en
dc.subject.other	Color removal	en
dc.subject.other	Different origins	en
dc.subject.other	Dominant mechanism	en
dc.subject.other	Dominant process	en
dc.subject.other	Heavy metal removal	en
dc.subject.other	Lead removal	en
dc.subject.other	Metal concentrations	en
dc.subject.other	Metal removal	en
dc.subject.other	Organic matter	en
dc.subject.other	Organics	en
dc.subject.other	pH range	en
dc.subject.other	Suspended solids	en
dc.subject.other	Textile wastewater	en
dc.subject.other	Treated effluent	en
dc.subject.other	UF membranes	en
dc.subject.other	Ultrafiltration membranes	en
dc.subject.other	Zinc removal	en
dc.subject.other	Activated sludge process	en
dc.subject.other	Adsorption	en
dc.subject.other	Color	en
dc.subject.other	Effluents	en
dc.subject.other	Heavy metals	en
dc.subject.other	Lead compounds	en
dc.subject.other	Lead removal (water treatment)	en
dc.subject.other	Metal ions	en
dc.subject.other	Metals	en
dc.subject.other	Minerals	en
dc.subject.other	Precipitation (chemical)	en
dc.subject.other	Textile processing	en
dc.subject.other	Textiles	en
dc.subject.other	Ultrafiltration	en
dc.subject.other	Wastewater	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Water filtration	en
dc.subject.other	Zinc	en
dc.subject.other	Zinc compounds	en
dc.subject.other	Color removal (water treatment)	en
dc.title	Evaluation of the efficiency of a combined adsorption- ultrafiltration system for the removal of heavy metals, color, and organic matter from textile wastewater	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/01496395.2010.551166	en
heal.identifier.secondary	http://dx.doi.org/10.1080/01496395.2010.551166	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	In this work an ultrafiltration (UF) membrane system was investigated for the treatment of textile wastewater. UF membranes were assisted by activated sludge and minerals, which were employed as sorbents, to remove Cu(II), Pb(II), Zn(II), Ni(II), color, and organics. Significant variations were observed in metal removal efficiencies among the textile wastewater samples of different origin, even at the same pH (=6) due to the presence of different compounds in wastewater. At the examined pH range (5.63-9.21), the dominant mechanism for copper and lead removal was the formation of insoluble metals due to precipitation and complexation of metal ions with wastewater compounds, including adsorption of metals on suspended solids and colloidal matter. The adsorption of metals on minerals and activated sludge was the dominant process for nickel and zinc removal at low pH, while precipitation/ complexation prevailed at higher pH. The examined adsorption-UF system could produce a treated effluent having low metal concentrations that could be safely discharged into municipal sewers. COD removal ranged from 76%-92% for the five textile wastewater samples. The color removal accomplished was significant (45%-70%), and depended on the type of dye. © Taylor & Francis Group, LLC.	en
heal.publisher	TAYLOR & FRANCIS INC	en
heal.journalName	Separation Science and Technology	en
dc.identifier.doi	10.1080/01496395.2010.551166	en
dc.identifier.isi	ISI:000289583400005	en
dc.identifier.volume	46	en
dc.identifier.issue	6	en
dc.identifier.spage	920	en
dc.identifier.epage	932	en