返送ラインにおける磁気―フェライト処理法を用いた余剰活性汚泥の減容化

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2016/03/01

タイトル(英語): Reduction of Excess Sludge by Magnetofferrite Treatment Applied to the Rreturn Sludge

著者名: 遠藤　雅也（秋田大学工学資源学研究科），カビール　ムハムドゥル（秋田大学工学資源学研究科），鈴木　雅史（秋田大学工学資源学研究科），吉村　昇（東北公益文科大学）

著者名(英語): Masaya Endo (Graduate School of Engineering and Resource Science, Akita University), Mahmudul Kabir (Graduate School of Engineering and Resource Science, Akita University), Masafumi Suzuki (Graduate School of Engineering and Resource Science, Akita University), Noboru Yoshimura (Tohoku University of Community Service and Science)

キーワード: 余剰汚泥，減容化，フェライト粒子，磁化　　excess sludge，reduction，ferrite particles，magnetization

要約(英語): Excess activated sludge is a serious problem in waste water treatment plants (WWTPs). Several methods have been introduced to reduce the growth of excess activated sludge; however, an effective method remains to be discovered. We have developed a method that uses the motion of ferrite particles to treat the excess activated sludge produced in WWTPs. The motion of ferrite particles was controlled by two electromagnets (EMs). A magnetic circuit with two metal plates between the EMs was proposed, so that the magnetic flux of the magnets can be obtained for a larger area. Thus, a larger container with activated sludge can be treated, and by applying an AC voltage, it can be sterilized and its quantity can be reduced. We discussed the relations between the magnetic flux distribution and the width of the metal plates. Moreover, we succeeded in reducing excess activated sludge for various concentrations of activated sludge (i.e., 2000mg/L, 4000mg/L, and 6000mg/L). Our experiments show promising prospects for the use of magnetoferrite treatment in the return line of activated sludge in sewerage plants.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.136 No.3 （2016）

本誌掲載ページ: 198-203 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/136/3/136_198/_article/-char/ja/