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Behavior of metals in ash melting and gasification-melting of municipal solid waste (MSW)

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Title: Behavior of metals in ash melting and gasification-melting of municipal solid waste (MSW)
Authors: Jung, C. H. Browse this author
Matsuto, T. Browse this author →KAKEN DB
Tanaka, N. Browse this author
Keywords: ash-melting
gasification-melting
melting furnace fly ash (MFA)
generation rate of MFA
distribution ratio of metal
Issue Date: 2005
Publisher: Elsevier
Journal Title: Waste Management
Volume: 25
Issue: 3
Start Page: 301
End Page: 310
Publisher DOI: 10.1016/j.wasman.2004.08.012
PMID: 15823745
Abstract: In this study, metal behavior in ash-melting and municipal solid waste (MSW) gasification-melting facilities were investigated. Eight ash-melting and three MSW gasification-melting facilities with a variety of melting processes and feedstocks were selected. From each facility, melting furnace fly ash (MFA) and molten slag were sampled, and feedstock of the ash-melting processes was also taken. For the ash melting process, the generation rate of MFA was well correlated with the ratio of incineration fly ash (IFA) in feedstock, and this was because MFA was formed mostly by mass transfer from IFA and a limited amount from bottom ash (BA). Distribution ratios of metal elements to MFA were generally determined by volatility of the metal element, but chlorine content in feedstock had a significant effect on Cu and a marginal effect on Pb. Distribution ratio of Zn to MFA was influenced by the oxidizing atmosphere in the furnace. High MFA generation and distribution ratio of non-volatile metals to MFA in gasification-melting facilities was probably caused by carry-over of fine particles to the air pollution control system due to large gas volume. Finally, dilution effect was shown to have a significant effect on metal concentration in MFA.
Relation: http://www.sciencedirect.com/science/journal/0956053X
Type: article (author version)
URI: http://hdl.handle.net/2115/13702
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松藤 敏彦

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