混相流研究の進展
気泡、マイクロバブル
余剰汚泥のオゾン分解に及ぼすマイクロバブルの影響
坂東 芳行吉松 崇王 宇飛安田 啓司杉江 享浅井 健好
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3 巻 (2008) p. 51-57

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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.
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.

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© 2008 日本混相流学会
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