Copper removal from sludge permeate with ultrafiltration membranes using zeolite, bentonite and vermiculite as adsorbents

Malamis, S; Katsou, E; Stylianou, M; Haralambous, KJ; Loizidou, M

dc.contributor.author	Malamis, S	en
dc.contributor.author	Katsou, E	en
dc.contributor.author	Stylianou, M	en
dc.contributor.author	Haralambous, KJ	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T02:46:44Z
dc.date.available	2014-03-01T02:46:44Z
dc.date.issued	2010	en
dc.identifier.issn	0273-1223	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32817
dc.subject	Bentonite	en
dc.subject	Copper	en
dc.subject	Sludge	en
dc.subject	Ultrafiltration membranes	en
dc.subject	Vermiculite	en
dc.subject	Zeolite	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Water Resources	en
dc.subject.other	Activated sludge	en
dc.subject.other	Clinoptilolites	en
dc.subject.other	Copper concentration	en
dc.subject.other	Copper removal	en
dc.subject.other	Final effluents	en
dc.subject.other	Industrial wastewaters	en
dc.subject.other	Ion exchange capacity	en
dc.subject.other	Mineral addition	en
dc.subject.other	pH value	en
dc.subject.other	Removal efficiencies	en
dc.subject.other	Room temperature	en
dc.subject.other	Sludge	en
dc.subject.other	Ultra-filtration membranes	en
dc.subject.other	Adsorption	en
dc.subject.other	Bentonite	en
dc.subject.other	Clay minerals	en
dc.subject.other	Copper	en
dc.subject.other	Effluents	en
dc.subject.other	Industrial water treatment	en
dc.subject.other	Ion exchange	en
dc.subject.other	Ion exchangers	en
dc.subject.other	Membrane fouling	en
dc.subject.other	Membranes	en
dc.subject.other	Minerals	en
dc.subject.other	Removal	en
dc.subject.other	Silicate minerals	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	bentonite	en
dc.subject.other	clinoptilolite	en
dc.subject.other	copper	en
dc.subject.other	vermiculite	en
dc.subject.other	zeolite	en
dc.subject.other	bentonite	en
dc.subject.other	copper	en
dc.subject.other	fouling	en
dc.subject.other	industrial waste	en
dc.subject.other	ion exchange	en
dc.subject.other	Mediterranean environment	en
dc.subject.other	membrane	en
dc.subject.other	sludge	en
dc.subject.other	ultrafiltration	en
dc.subject.other	vermiculite	en
dc.subject.other	zeolite	en
dc.subject.other	biofouling	en
dc.subject.other	conference paper	en
dc.subject.other	controlled study	en
dc.subject.other	cost	en
dc.subject.other	effluent	en
dc.subject.other	ion exchange	en
dc.subject.other	pH	en
dc.subject.other	productivity	en
dc.subject.other	room temperature	en
dc.subject.other	sludge	en
dc.subject.other	Southern Europe	en
dc.subject.other	ultrafiltration	en
dc.subject.other	waste water	en
dc.subject.other	Adsorption	en
dc.subject.other	Air	en
dc.subject.other	Aluminum Silicates	en
dc.subject.other	Bentonite	en
dc.subject.other	Copper	en
dc.subject.other	Hydrogen-Ion Concentration	en
dc.subject.other	Industrial Waste	en
dc.subject.other	Sewage	en
dc.subject.other	Ultrafiltration	en
dc.subject.other	Waste Disposal, Fluid	en
dc.subject.other	Water Pollutants, Chemical	en
dc.subject.other	Zeolites	en
dc.title	Copper removal from sludge permeate with ultrafiltration membranes using zeolite, bentonite and vermiculite as adsorbents	en
heal.type	conferenceItem	en
heal.identifier.primary	10.2166/wst.2010.859	en
heal.identifier.secondary	http://dx.doi.org/10.2166/wst.2010.859	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The aim of this work is to examine copper removal from sludge permeate with the use of low-cost minerals of Mediterranean origin combined with ultrafiltration membranes. The minerals used were zeolite (clinoptilolite), bentonite and vermiculite. Activated sludge was enriched with 0.01N (317.7 ppm) of Cu(II). Fixed concentrations of minerals were added to sludge and the pH value was adjusted at 5.5. The mixture was agitated for 2 hours at 800 rpm at room temperature and was then filtered through a batch ultrafiltration system for 1 hour. This experiment was repeated, for comparison purposes, with sludge enriched with 0.01N of Cu(II) with no mineral addition. The results showed that ultrafiltration membranes with no mineral addition were able to remove a significant amount of copper with removal efficiencies ranging from 59.4-78.3%. The addition of 10 g/l and 20 g/l of bentonite combined with ultrafiltration membranes resulted in removal efficiencies of 94.9% and 99.4% respectively and that of 10 g/l and 20 g/l of vermiculite in removal efficiencies of 93.8% and 96.8%, respectively. The ion exchange capacity of minerals followed the order bentonite > vermiculite > zeolite. Furthermore, membrane fouling was investigated. The addition of zeolite and bentonite reduced membrane fouling, while the addition of vermiculite did not impact on fouling. The use of lowcost minerals in combination with ultrafiltration membranes can be employed to treat industrial wastewater, resulting in a final effluent with very low copper concentrations. © IWA Publishing 2010.	en
heal.publisher	I W A PUBLISHING	en
heal.journalName	Water Science and Technology	en
dc.identifier.doi	10.2166/wst.2010.859	en
dc.identifier.isi	ISI:000274444500004	en
dc.identifier.volume	61	en
dc.identifier.issue	3	en
dc.identifier.spage	581	en
dc.identifier.epage	589	en