Assessment of Fenton's reagent and ozonation as pre-treatments for increasing the biodegradability of aqueous diethanolamine solutions from an oil refinery gas sweetening process

Duran-Moreno, A; Garcia-Gonzalez, SA; Gutierrez-Lara, MR; Rigas, F; Ramirez-Zamora, RM

dc.contributor.author	Duran-Moreno, A	en
dc.contributor.author	Garcia-Gonzalez, SA	en
dc.contributor.author	Gutierrez-Lara, MR	en
dc.contributor.author	Rigas, F	en
dc.contributor.author	Ramirez-Zamora, RM	en
dc.date.accessioned	2014-03-01T01:35:20Z
dc.date.available	2014-03-01T01:35:20Z
dc.date.issued	2011	en
dc.identifier.issn	0304-3894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21003
dc.subject	Advanced oxidation	en
dc.subject	Biodegradability test	en
dc.subject	Fenton's reagent	en
dc.subject	Ozone	en
dc.subject	Spent amine	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Advanced oxidation	en
dc.subject.other	Biodegradability test	en
dc.subject.other	Biodegradability tests	en
dc.subject.other	Biological process	en
dc.subject.other	Chemical oxidation	en
dc.subject.other	Degradation rate	en
dc.subject.other	Diethanolamine solutions	en
dc.subject.other	Dissolved organic carbon	en
dc.subject.other	Experimental conditions	en
dc.subject.other	Fenton's reagent	en
dc.subject.other	Fenton's reagents	en
dc.subject.other	Gas sweetening plants	en
dc.subject.other	Oil refineries	en
dc.subject.other	Oxidation tests	en
dc.subject.other	Ozonation	en
dc.subject.other	Physicochemical methods	en
dc.subject.other	Physicochemical parameters	en
dc.subject.other	Pre-treatments	en
dc.subject.other	Reaction period	en
dc.subject.other	Spent amine	en
dc.subject.other	Biodegradation	en
dc.subject.other	Chemical oxygen demand	en
dc.subject.other	Degradation	en
dc.subject.other	Hydrogen	en
dc.subject.other	Hydrogen peroxide	en
dc.subject.other	Organic carbon	en
dc.subject.other	Oxidation	en
dc.subject.other	Ozonization	en
dc.subject.other	Petroleum refineries	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Refining	en
dc.subject.other	Removal	en
dc.subject.other	Sour gas	en
dc.subject.other	Testing	en
dc.subject.other	Ozone	en
dc.subject.other	diethanolamine	en
dc.subject.other	ferrous gluconate	en
dc.subject.other	hydrogen peroxide	en
dc.subject.other	organic carbon	en
dc.subject.other	ozone	en
dc.subject.other	aqueous solution	en
dc.subject.other	biodegradation	en
dc.subject.other	experimental study	en
dc.subject.other	oil industry	en
dc.subject.other	oxidation	en
dc.subject.other	ozone	en
dc.subject.other	physicochemical property	en
dc.subject.other	aqueous solution	en
dc.subject.other	article	en
dc.subject.other	biodegradability	en
dc.subject.other	chemical parameters	en
dc.subject.other	dilution	en
dc.subject.other	oil industry	en
dc.subject.other	oxidation	en
dc.subject.other	ozonation	en
dc.subject.other	pH	en
dc.subject.other	physical chemistry	en
dc.subject.other	plant	en
dc.subject.other	waste component removal	en
dc.subject.other	Biodegradation, Environmental	en
dc.subject.other	Ethanolamines	en
dc.subject.other	Hydrogen Peroxide	en
dc.subject.other	Industry	en
dc.subject.other	Iron	en
dc.subject.other	Mexico	en
dc.subject.other	Models, Statistical	en
dc.subject.other	Oxidation-Reduction	en
dc.subject.other	Oxygen	en
dc.subject.other	Ozone	en
dc.subject.other	Petroleum	en
dc.subject.other	Solutions	en
dc.title	Assessment of Fenton's reagent and ozonation as pre-treatments for increasing the biodegradability of aqueous diethanolamine solutions from an oil refinery gas sweetening process	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhazmat.2010.12.043	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhazmat.2010.12.043	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	The aim of this work was to evaluate the efficiency of three chemical oxidation processes for increasing the biodegradability of aqueous diethanolamine solutions (aqueous DEA solutions), to be used as pre-treatments before a biological process. The raw aqueous DEA solution, sourced from a sour gas sweetening plant at a Mexican oil refinery, was first characterized by standardized physico-chemical methods. Then experiments were conducted on diluted aqueous DEA solutions to test the effects of Fenton's reagent, ozone and ozone-hydrogen peroxide on the removal of some physicochemical parameters of these solutions. Lastly, biodegradability tests based on Dissolved Organic Carbon Die Away OECD301-A, were carried out on a dilution of the raw aqueous DEA solution and on the treated aqueous DEA solutions, produced by applying the best experimental conditions determined during the aforementioned oxidation tests. Experimental results showed that for aqueous DEA solutions treated with Fenton's reagent, the best degradation rate (70%) was obtained at pH 2.8, with Fe2+ and H2O2 at doses of 1000 and 10 000 mg/L respectively. In the ozone process, the best degradation (60%) was observed in aqueous DEA solution (100 mg COD/L), using 100 mg O-3/L at pH 5. In the ozone-hydrogen peroxide process, no COD or DOC removals were observed. The diluted spent diethanolamine solution showed its greatest increase in biodegradability after a reaction period of 28 days when treated with Fenton's reagent, but after only 15 days in the case of ozonation. (C) 2011 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/j.jhazmat.2010.12.043	en
dc.identifier.isi	ISI:000288344000089	en
dc.identifier.volume	186	en
dc.identifier.issue	2-3	en
dc.identifier.spage	1652	en
dc.identifier.epage	1659	en