Effect of oxidation pretreatment by hydrogen peroxide on iron removal from wastewater of a sulfuric acid iron-pickling process

Vlyssides, A; Moutsatsou, A; Mai, S; Barampouti, EM

dc.contributor.author	Vlyssides, A	en
dc.contributor.author	Moutsatsou, A	en
dc.contributor.author	Mai, S	en
dc.contributor.author	Barampouti, EM	en
dc.date.accessioned	2014-03-01T01:22:15Z
dc.date.available	2014-03-01T01:22:15Z
dc.date.issued	2005	en
dc.identifier.issn	0278-4491	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16502
dc.subject	Ferrous removal	en
dc.subject	Lime effect	en
dc.subject	Sulfates removal	en
dc.subject	Sulfuric acid iron pickling	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Biochemical oxygen demand	en
dc.subject.other	Hydrogen peroxide	en
dc.subject.other	Iron	en
dc.subject.other	Oxidation	en
dc.subject.other	pH effects	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Sulfuric acid	en
dc.subject.other	Surface waters	en
dc.subject.other	Ferrous removal	en
dc.subject.other	Lime effect	en
dc.subject.other	Sulfates removal	en
dc.subject.other	Sulfuric acid iron pickling	en
dc.subject.other	Wastewater treatment	en
dc.title	Effect of oxidation pretreatment by hydrogen peroxide on iron removal from wastewater of a sulfuric acid iron-pickling process	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/ep.10032	en
heal.identifier.secondary	http://dx.doi.org/10.1002/ep.10032	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	In this paper, a new method for the treatment of wastewater from a sulfuric acid iron-pickling process is described. A two-stage treatment process that includes a hydrogen peroxide oxidation first step based on Fenton reactions, and a lime precipitation second step, was compared with the one-stage conventional treatment process that includes only lime precipitation. The objective of the study was to demonstrate the beneficial effect of oxidation as a pretreatment method because the conventional treatment method cannot meet the Greek Emission Limit Values for effluent disposal to surface waters at any pH, whereas the proposed method can. Complete removal of iron (< 1 mg/L) and sulfates (< 500 rng/L) can be achieved. In contrast, at the same pH using the conventional method, the concentrations of iron and sulfates in the effluent are greater than 500 and 2500 mg/L, respectively. Furthermore, COD and BOD are reduced by the proposed process (> 90%) as a result of oxidation. (c) 2004 American Institute of Chemical Engineers Environ Prog,	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Environmental Progress	en
dc.identifier.doi	10.1002/ep.10032	en
dc.identifier.isi	ISI:000228027900011	en
dc.identifier.volume	24	en
dc.identifier.issue	1	en
dc.identifier.spage	82	en
dc.identifier.epage	87	en