Behavior of Perfluorinated Compounds Adsorbed in Exhausted Activated Carbon during Thermal Treatment and Combustion

DOI Web Site 2 Citations 4 References
  • Takata Mitsuyasu
    Major in Environmental Engineering, Graduate School of Engineering, Osaka Institute of Technology
  • Yamamoto Shusaku
    Major in Environmental Engineering, Graduate School of Engineering, Osaka Institute of Technology
  • Nishioka Ryouta
    Department of Environmental Engineering, Faculty of Engineering, Osaka Institute of Technology
  • Takemine Shusuke
    Hyogo Environmental Advancement Association, Hyogo Prefectural Institute of Environmental Sciences
  • Tanaka Shuhei
    Graduate School of Global Environment Studies, Kyoto University
  • Fujii Shigeo
    Graduate School of Global Environment Studies, Kyoto University
  • Watanabe Nobuhisa
    Major in Environmental Engineering, Graduate School of Engineering, Osaka Institute of Technology

Bibliographic Information

Other Title
  • 最終処分場余水処理工程で活性炭に吸着保持された有機フッ素化合物の熱処理による挙動
  • サイシュウ ショブンジョウ ヨスイ ショリ コウテイ デ カッセイタン ニ キュウチャク ホジ サレタ ユウキ フッソ カゴウブツ ノ ネツ ショリ ニ ヨル キョドウ

Search this article

Description

Activated carbon adsorbs perfluorinated compounds (PFCs) in an effluent treatment system at a final disposal site. We examined activated carbon for inorganic fluorine (F) trapped in the gas absorbent obtained by thermal treatment in air followed by combustion decomposition in oxygen flow. The F yields increased as the air temperature rose to 600 °C. The combined yields from combustion pyrolysis in oxygen flow were 215 μg g−1. However, yields decreased at temperatures of 700 °C or greater, probably because of alkaline substances such as calcium carbonate on the activated carbon surface holding F on solid-phase because of the thermal treatment temperature. During experiments, F measurements were conducted using activated carbon washed in distilled water or dilute sulfuric acid. Results show that, with distilled water cleaning, F yields decreased with increasing heat, but with dilute sulfuric acid cleaning, measurements of 106-114 μg g−1 remained unchanged at 500-800 °C. This portion of the total amount of PFCs trapped in activated carbon exhibits about 10 times the concentration of the result of possible PFC identification (5-14 μg g−1) sampled at the same point.

Journal

Citations (2)*help

See more

References(4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top