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Water-soluble characteristics of chlorine in char derived from municipal solid wastes

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Title: Water-soluble characteristics of chlorine in char derived from municipal solid wastes
Authors: Hwang, I.H. Browse this author
Matsuto, T. Browse this author →KAKEN DB
Tanaka, N. Browse this author
Issue Date: 2006
Publisher: Elsevier
Journal Title: Waste Management
Volume: 26
Issue: 6
Start Page: 571
End Page: 579
Publisher DOI: 10.1016/j.wasman.2005.04.012
PMID: 16026975
Abstract: Chlorine in char derived from municipal solid waste (MSW) was characterized and quantified based on its water solubility: easily water-soluble, hardly water-soluble, and non-water-soluble chlorine. For that, a four-cycle process of water-washing, heating or carbonation were carried out. In order to confirm the characteristics of non-water-soluble chlorine, additional thermal treatment and an alkali- acid washing process were applied to washed char. It was found that a large particle size of char (0.5 to 1.0 mm) significantly contributed to the amount of non-water-soluble chlorine. Pulverization and HNO_3 HF digestion were performed to identify a factor to interfere chlorine release from char with a large particle size. Pulverization was proven ineffective for release of non-water-soluble chlorine, whereas approximately 32% of non-water-soluble chlorine was extracted by HNO_3 HF digestion. Therefore, the presence of non-water-soluble chlorine is likely to originate from its chemical property rather than simply from its physical one.
Relation: http://www.sciencedirect.com/science/journal/0956053X
Type: article (author version)
URI: http://hdl.handle.net/2115/13479
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: 黄 仁姫

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