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タイトル: 炭素陰極を用いた電気分解による水素を利用した脱窒反応装置の速度解析
その他のタイトル: Nitrate Removal Rate in a Continuous Column Denitrification Reactor Using Hydrogen Generated by Electrolysis with Carbon Anodes and Stainless Cathodes
著者: Dadang, Suhendar
川西, 琢也 link image link image
清水, 宣明 link image
林, 良茂 link image
Kawanishi, Takuya
Shimizu, Nobuaki
Hayashi, Yoshishige
発行日: 2001年 7月10日
出版社(者): 日本水環境学会 = Japan Society on Water Environment
雑誌名: 水環境学会誌 = Journal of Japan Society on Water Environment
ISSN: 0916-8958
巻: 24
号: 7
開始ページ: 454
終了ページ: 458
キーワード: autotrophic denitrification
honeycomb activated carbon
抄録: An autotrophic continuous denitrification process, using hydrogen generated by electrolysis with activated carbon anodes, were experimentally demonstrated to be an effective nitrate removal process. Several fixed bed columns with polypropylene packing and honey-come shaped activated carbon anodes and stainless rod cathodes were set in thermostat chamber of 30°C, and then potassium nitrate enriched tap water, nitrogen concentration of 30mg-N·l-1, was supplied at various flow rates and electric currents. Although the anode is in the same column where microbes grow, sufficient nitrate removal was observed. For example, 94% of nitrate was removed at the HRT of as short as 1.8h for an electrical current of 6mA. A model assuming successive nitrate and nitrite reductions and plug-flow process, nitrate reduction rate=k1[NO3-][H2], and nitrite reduction rate=k2[NO2-][H2]1.5 was constructed. Calculated results with k1=1.3l·mmol-1·h-1 and k2=3.3l1.5·mmol-1.5·h-1 agreed well with the all the experimental results.
DOI: 10.2965/jswe.24.454
URI: http://hdl.handle.net/2297/24791
関連URI: http://www.jswe.or.jp/
資料種別: Journal Article
権利関係: Copyright (c) 2001 日本水環境学会
版表示: publisher

このアイテムを引用あるいはリンクする場合は次の識別子を使用してください。 http://hdl.handle.net/2297/24791



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