EXPERIMENTAL STUDY ON INHIBITION OF CHLORINATED AROMATICS FORMATION ON FLYASH USING SODIUM SULFIDE

• TAKAOKA Masaki

  JAPAN SOCIETY OF CIVIL ENGINEERS

• NAKAMORI Ken-ichi

  日立造船 (株)

• TAKEDA Nobuo

  JAPAN SOCIETY OF CIVIL ENGINEERS

• FUJIWARA Takeshi

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 硫化ナトリウム添加による飛灰上の塩素化芳香族化合物の生成抑制に関する実験的研究
• リュウカ ナトリウム テンカ ニ ヨル ヒカイ ジョウ ノ エンソカ ホウコウゾク カゴウブツ ノ セイセイ ヨクセイ ニ カンスル ジッケンテキ ケンキュウ

Abstract

The effect of sodium sulfide (Na₂S) on the formation of chloribnated aromatics such as polychlorinated biphenyls (PCBs) and chlorobenzenes (CBz) in post combusiton zone (200-500°C) of municipal solid waste incinerator was investigated. When fly ash was heated with mixture of 2% Na₂S at the condition of 300°C and 30min in air with 500ppm hydrogen chloride, total levels of CBz and PCBs decreased by 49% and 22% compared with that of fly ash without addition of Na₂S, respectively. The analysis using the sequential chemical extraction method indicated copper compounds in fly ash changed into copper sulfide. The main inhibiting mechanism was estimated to be the reduction of catalytic activity of fly ash.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2001 (685), 91-102, 2001-08-22

  Japan Society of Civil Engineers

Keywords

• chlorinated aromatics
• fly ash
• sodium sulfide
• inhibition

Details

• CRID: 1390282680577325056
• NII Article ID: 10006541738
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2001.685_91
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 5896158
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5896158
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2001/685/2001_685_91/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed