Computer-aided process design, economic evaluation and environmental impact assessment for treatment of cheese whey wastewater

Kotoupas, A; Rigas, F; Chalaris, M

dc.contributor.author	Kotoupas, A	en
dc.contributor.author	Rigas, F	en
dc.contributor.author	Chalaris, M	en
dc.date.accessioned	2014-03-01T01:26:03Z
dc.date.available	2014-03-01T01:26:03Z
dc.date.issued	2007	en
dc.identifier.issn	0011-9164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17897
dc.subject	Cheese whey	en
dc.subject	Computer-aided process analysis	en
dc.subject	Economic evaluation	en
dc.subject	Environmental impact assessment	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Water Resources	en
dc.subject.other	Computer aided design	en
dc.subject.other	Economic analysis	en
dc.subject.other	Effluent treatment	en
dc.subject.other	Environmental impact assessments	en
dc.subject.other	Minerals	en
dc.subject.other	Removal	en
dc.subject.other	Water treatment plants	en
dc.subject.other	Computer-aided process design	en
dc.subject.other	Economic evaluation	en
dc.subject.other	Residual minerals	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Computer aided design	en
dc.subject.other	Economic analysis	en
dc.subject.other	Effluent treatment	en
dc.subject.other	Environmental impact assessments	en
dc.subject.other	Minerals	en
dc.subject.other	Removal	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Water treatment plants	en
dc.subject.other	economic analysis	en
dc.subject.other	environmental impact assessment	en
dc.subject.other	waste treatment	en
dc.subject.other	wastewater	en
dc.title	Computer-aided process design, economic evaluation and environmental impact assessment for treatment of cheese whey wastewater	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.desal.2006.03.611	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.desal.2006.03.611	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Efficient software was used for the comparison of five alternative scenarios for the treatment of cheese whey wastewater resulting from a Cheddar cheese factory. Scenario 1 deals with a cheese whey wastewater treatment plant that produces butter, whey protein concentrate and food-grade ethanol. In scenario 2 the butter-making section is similar to the basic process (scenario 1) with some differences in the concentration of whey proteins and in the removal of residual minerals from water. In scenario 3 the plant produces Manouri (a type of cream cheese) instead of butter. In scenario 4 the plant produces two types of whey protein concentrate (WPC), namely, a rich in whey lipids (WPC 2) and the other a highly purified protein concentrate possessing improved functional properties (WPC 1). In addition a process that produces pure lactose has replaced the ethanol section. In scenario 5 the plant produces butter, whey protein isolate (WPI) containing 95% protein and hydrolyzed-isomerized whey permeate syrup (HIPS). The economic comparison has shown that scenario 3 is the most profitable due to its high net present value (NPV) and low payback period as well as to its low production rate (40% of the full production rate) at the breakeven point. The environmental impact assessment demonstrated that scenario 4 is more environmentally friendly than the others due to the absence of biomass in the effluent. © 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Desalination	en
dc.identifier.doi	10.1016/j.desal.2006.03.611	en
dc.identifier.isi	ISI:000248636500032	en
dc.identifier.volume	213	en
dc.identifier.issue	1-3	en
dc.identifier.spage	238	en
dc.identifier.epage	252	en