Influence of Micro-bubble on Ozone-Decomposition of Excess Sludge

• BANDO Yoshiyuki

  名古屋大学大学院　工学研究科

• YOSHIMATSU Takashi

  名古屋大学大学院　工学研究科

• WANG Yufei

  名古屋大学大学院　工学研究科

• YASUDA Keiji

  名古屋大学大学院　工学研究科

• SUGIE Takashi

  名古屋市上下水道局

• ASAI Takeyoshi

  名古屋市上下水道局

Bibliographic Information

Other Title

• 余剰汚泥のオゾン分解に及ぼすマイクロバブルの影響
• ヨジョウ オデイ ノ オゾン ブンカイ ニ オヨボス マイクロバブル ノ エイキョウ

Abstract

For the phosphorus recovery from the excess sludge in the sewage treatment process, the decomposition of excess sludge by using ozone micro-bubbles was focused, and the influence of ozone micro-bubble on the foam behavior and the decomposition performance was examined. A cocurrent upflow bubble column with micro-bubble generator was used and the excess activated sludge was decomposed under the various conditions. The foam behavior was observed and the decomposition performance was measured.<BR>The foam behavior was quite different with the bubble size. When ozone micro-bubbles were dispersed, the ozone decomposition was much enhanced. As a result, the decomposition time and required amount of ozone became much lower than those in the case of milli-bubbles.

Journal

• Progress in Multiphase Flow Research

  Progress in Multiphase Flow Research 3 51-57, 2008

  THE JAPANESE SOCIETY FOR MULTIPHASE FLOW

Keywords

• Micro-bubble
• Bubble column
• Ozone treatment
• Excess sludge

Details

• CRID: 1390001205274658688
• NII Article ID: 10021154344
• NII Book ID: AA12204080
• DOI: 10.3811/pmfr.3.51
• ISSN: 18816088
• ISSN: 18815804
• NDL BIB ID: 9553812
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9553812
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed