Dechlorination of municipal solid waste incineration residues for beneficial reuse as a resource for cement

Takayuki Shimaok, Teppei Komiy, Fumitake Takahashi, Hirofumi Nakayama

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

As one of the beneficial resources reclaimable from municipal solid waste incineration residues (MSWIR), we studied the resource of cement and a dechlorination system to meet the JIS standard governing chlorine content in cement. A key problem of such a system is how to remove chlorines, especially insoluble chlorines such as Friedel's salt, from MSWIR by means of a low-cost treatment system. To develop an innovative dechlorination system for MSWIR, a pilot plant experiment to confirm the effectiveness of organic materials as additives for the dechlorination of MSWIR was conducted using large lysimeters. In addition, to estimate the chlorine-removal efficiency and the period required for sufficient dechlorination, a numerical simulation was carried out. In cases where no organic materials had been added to MSWIR, soluble forms of chlorine could be removed, but insoluble forms of chlorine - such as Friedel's salt, remained after treatment. On the other hand, when garbage compost was present as an organic additive, both soluble and insoluble forms of chlorine could be effectively removed. The removal of insoluble forms of chlorine was made possible by the decomposition of the insoluble forms resulting from a lowering of the pH level as a result of the decomposition of organic substances, and the generation of sulfuric acid derived from the decomposition of garbage compost. As a result, the total chlorine content of MSWIR can be decreased to 0.1% in about two years.

本文言語英語
ホスト出版物のタイトルTesting and Specification of Recycled Materials for Sustainable Geotechnical Construction
出版社ASTM International
ページ412-433
ページ数22
ISBN(印刷版)9780803175266
DOI
出版ステータス出版済み - 2012
イベントASTM International Symposium on Testing and Specification of Recycled Materials for Sustainable Geotechnical Construction - Baltimore, MD, 米国
継続期間: 2 2 20112 4 2011

出版物シリーズ

名前ASTM Special Technical Publication
1540 STP
ISSN(印刷版)0066-0558

その他

その他ASTM International Symposium on Testing and Specification of Recycled Materials for Sustainable Geotechnical Construction
国/地域米国
CityBaltimore, MD
Period2/2/112/4/11

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)

フィンガープリント

「Dechlorination of municipal solid waste incineration residues for beneficial reuse as a resource for cement」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル