Mixing Time of Cylindrical Bath Agitated by Swirl Motion of Gas-liquid Two-phase Jet and Sludge Treatment Using Ozone

• SHITARA Moriyoshi

  Huens Co., Ltd., now Graduate Student, Hokkaido University

• IGUCHI Manabu

  Graduate School of Engineering, Hokkaido University

• TAMAMORI Taku

  Huens Co., Ltd.

Bibliographic Information

Other Title

• 気液二相旋回噴流下での均一混合時間とオゾンを用いた汚泥処理技術
• キエキ 2ソウ センカイ フンリュウ カ デ ノ キンイツ コンゴウ ジカン ト オゾン オ モチイタ オデイ ショリ ギジュツ

Abstract

Sludge treatment using a gas-liquid two-phase swirling jet and ozone was proposed. The swirl motion of a gas-liquid two-phase jet appeared in a cylindrical bath under certain injecting conditions, and the bath was strongly agitated in the presence of the swirl motion. The swirling jet brought a very excellent effect on the ozone reaction with sludge. The intensity of agitation was quantitatively evaluated by means of mixing time. An empirical equation was derived for the mixing time. Sludge was decomposed by this method and, as a result, BUD₅ and SS in the sludge were significantly decreased.

Journal

• Tetsu-to-Hagane

  Tetsu-to-Hagane 91 (1), 224-229, 2005

  The Iron and Steel Institute of Japan

Keywords

• sludge treatment
• gas-liquid two-phase jet
• ozone
• swirl motion
• agitation
• mixing time

Details

• CRID: 1390001205182230784
• NII Article ID: 110001457829
• NII Book ID: AN00151251
• DOI: 10.2355/tetsutohagane1955.91.1_224
• ISSN: 18832954
• ISSN: 00211575
• ISSN: http://id.crossref.org/issn/00211575
• NDL BIB ID: 7207471
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7207471
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane1955/91/1/91_1_224/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed