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Thermal plasma vitrification process as an effective technology for fly ash and chromium-rich sewage sludge utilization

2013; Wiley; Volume: 89; Issue: 7 Linguagem: Inglês

10.1002/jctb.4221

1097-4660

Elżbieta Sobiecka, Łukasz Szymański,

Glass properties and applications

Journal of Chemical Technology & BiotechnologyVolume 89, Issue 7 p. 1115-1117 Technical Note Thermal plasma vitrification process as an effective technology for fly ash and chromium-rich sewage sludge utilization Elzbieta Sobiecka, Corresponding Author Elzbieta Sobiecka Lodz University of Technology, Institute of General Food Chemistry, 4/10 Stefanowskiego Street, 90-924 Lodz, PolandCorrespondence to: Elzbieta Sobiecka, Lodz University of Technology, Institute of General Food Chemistry, 4/10 Stefanowskiego Street, 90–924 Lodz, Poland. E-mail: [email protected]Search for more papers by this authorLukasz Szymanski, Lukasz Szymanski Lodz University of Technology, Institute of Mechatronics and Information Systems, 18/22 Stefanowskiego Street, 90-924 Lodz, PolandSearch for more papers by this author Elzbieta Sobiecka, Corresponding Author Elzbieta Sobiecka Lodz University of Technology, Institute of General Food Chemistry, 4/10 Stefanowskiego Street, 90-924 Lodz, PolandCorrespondence to: Elzbieta Sobiecka, Lodz University of Technology, Institute of General Food Chemistry, 4/10 Stefanowskiego Street, 90–924 Lodz, Poland. E-mail: [email protected]Search for more papers by this authorLukasz Szymanski, Lukasz Szymanski Lodz University of Technology, Institute of Mechatronics and Information Systems, 18/22 Stefanowskiego Street, 90-924 Lodz, PolandSearch for more papers by this author First published: 11 September 2013 https://doi.org/10.1002/jctb.4221Citations: 22Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract The main goal of the vitrification process for environmental research is the destruction of hazardous waste. This study proposes the use of a thermal plasma treatment process to transform fly ash and chromium-rich sewage sludge into glassy products called vitrificates that can be stored on the land without harmful environmental effects. This is achieved by: (i) decreasing the temperature and energy used to adjust process cost minimization; and (ii) stabilization of vitrificates for different compositions of waste mixture. The chemical stabilization of final products was examined by heavy metals leachability tests. Hardness tests were done to verify the physical stabilization of vitrificates. The most stable vitrificates were obtained from a sample consisting of 90 wt% fly ash and 10 wt% chromium sludge. The thermal plasma treatment is an effective method which can be used to convert hazardous waste mixtures into less toxic or inert glassy products. The chemical composition of raw materials influenced the chemical and physical properties of the vitrificates and determined their internal structures. Mixtures of two different hazardous wastes reduces the process cost without negative environmental impact, which is an innovation in thermal plasma treatment technology. © 2013 Society of Chemical Industry Citing Literature Volume89, Issue7July 2014Pages 1115-1117 RelatedInformation