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Water-soluble characteristics of chlorine in char derived from municipal solid wastes
| 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)
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Submitter: 黄 仁姫
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