ごみ焼却飛灰の金属水銀除去能と除去機構

• 西谷 隆司

  大阪市立環境科学研究所

• 福永 勲

  大阪市立環境科学研究所

• 伊藤 尚夫

  大阪市立環境科学研究所

• 野邑 奉弘

  大阪市立大学工学部機械工学科

書誌事項

タイトル別名

• Experimental Studies on the Removal of Metal Mercury from Flue Gas using Fly Ash

抄録

It is said that 70-90% of the mercury in municipal refuse incinerator flue gas is mercury chloride (HgCl₂) and the rest is metal mercury (Hg⁰), HgCl₂is generally easy to remove compared with Hg⁰. It is possible to remove HgCl₂with high efficiency using fabric filters, with the gas temperature at less than 150°C.<BR>The purpose of this work, therefore, is to develop a dry mercury treatment system which achieves a high mercury removal efficiency of up to 80% for metal mercury at 200°C. The laboratory experiments were performed on fly ashes collected from electrostatic precipitators in municipal refuse incineration plants.<BR>The following points have become clear from the experiments. Metal mercury can be removed with high efficiency at 200°C using fly ash from the municipal refuse incinerator. Both adsorbent substances such as unburnt carbon and CaCl₂contained in fly ash participates in the metal mercury removal mechanism. Adsobent substances and CaCl₂had a low removal efficiency when taken separately, but when they were present together, they had a high removal ability.

収録刊行物

• 廃棄物学会論文誌

  廃棄物学会論文誌 7 (2), 78-87, 1996

  一般社団法人 廃棄物資源循環学会

キーワード

• ごみ焼却施設
• 排ガス処理
• 水銀
• 飛灰
• バグフィルター

詳細情報

• CRID: 1390001205296899584
• NII論文ID: 10002472308
• NII書誌ID: AN10414685
• DOI: 10.3985/jswme.7.78
• ISSN: 1883163X
• ISSN: 18831648
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可