Environmental use of HCFA: Oil soil clean up

Moutsatsou, A; Drosou, C; Giannakeas, N; Karakasi, OK

dc.contributor.author	Moutsatsou, A	en
dc.contributor.author	Drosou, C	en
dc.contributor.author	Giannakeas, N	en
dc.contributor.author	Karakasi, OK	en
dc.date.accessioned	2014-03-01T02:51:38Z
dc.date.available	2014-03-01T02:51:38Z
dc.date.issued	2008	en
dc.identifier.issn	17433541	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35592
dc.subject	High calcium fly ash	en
dc.subject	Oil spill	en
dc.subject	Road construction	en
dc.subject	Soil stabilisation	en
dc.subject	Sorbent	en
dc.subject	Tetrapropylammonium bromide	en
dc.subject.other	calcium	en
dc.subject.other	conference proceeding	en
dc.subject.other	fly ash	en
dc.subject.other	hydrothermal system	en
dc.subject.other	oil spill	en
dc.subject.other	power plant	en
dc.subject.other	road construction	en
dc.subject.other	soil stabilization	en
dc.title	Environmental use of HCFA: Oil soil clean up	en
heal.type	conferenceItem	en
heal.identifier.primary	10.2495/WM080011	en
heal.identifier.secondary	http://dx.doi.org/10.2495/WM080011	en
heal.publicationDate	2008	en
heal.abstract	The present study focuses on the evaluation of high calcium fly ash (HCFA), an inorganic waste material produced by electric power plants in large quantities. Properties of HCFA, such as mineralogical and chemical composition, fine particle size, porosity, floating ability and hydrophobicity makes its application in oil spill clean-up attractive. Its sorption capacity depends on its composition and the oil type. Its floating ability has a better result in thin oil spill layers, specifically its coarse fraction, which seems to outmatch due to its higher Si content. Hydrothermal treatment with NaOH solution, with or without a template (tetrapropylammonium bromide), despite the increase in porosity and the decrease in specific gravity, has rather reduced the hydrophobic character and therefore its affinity for oil. The change in Si/Al content by the addition of SiO2 has proved to ameliorate its sorption capacity, but not its floating ability. The application of a HCFA-oil mixture as road construction material seems to be encouraging. It contributes to the elimination of dust production during the paving of a road with gravel, and ameliorates the soil strength, which encourages its application in soil stabilisation.	en
heal.journalName	WIT Transactions on Ecology and the Environment	en
dc.identifier.doi	10.2495/WM080011	en
dc.identifier.volume	109	en
dc.identifier.spage	3	en
dc.identifier.epage	12	en