Development of Advanced Risk-Free Process for Restoring Environmental Water Using Micro・Nano Bubbles

开发利用微纳米气泡修复环境水的先进无风险工艺

• 批准号: 21510094
• 负责人: MUROYAMA Katsuhiko
• 金额: $ 3.08万
• 依托单位: Kansai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21510094/
• 关键词: 環境修復技術; マイクロ・ナノバブル; 環境保全技術; リスクフリー技術; 浄水処理; オゾン処理; HO・ラジカル; フェノール; 環境修復; p-クロロフェノール

(1) The superiority of the micro-bubble treatment over the conventional milli-bubble treatment was experimentally verified based on the ozone degradation of phenolic compounds thinly dissolved in water in a 1 L bubble column reactor. The results showed that the volumetric flow rate of ozonated oxygen required for the micro-bubble treatment of ozone degradation of phenolic compounds was only 1/5 of that for the milli-bubble treatment, due to the extremely high specific interfacial area and superior ozone absorption efficiency.(2) The bubble size distribution, the Sauter mean diameter dvs, the volumetric mass transfer coefficient kLa, and the oxygen absorption efficiency were measured for micro-bubble dispersion including about 20～60μm diameter bubbles. The values of the specific interfacial area and the values of gas absorption efficiency are markedly greater than those for the conventional milli-bubble dispersion.

(1)通过在1 L鼓泡塔反应器中臭氧降解水中稀溶性酚类化合物的实验，验证了微气泡处理法优于常规毫气泡处理法的优越性。结果表明，微泡处理臭氧降解酚类化合物所需臭氧化氧的体积流量仅为毫泡处理的1/5，这是由于微泡具有极高的比表面积和优越的上级臭氧吸收效率。(2)测定了直径为20~60μm的微气泡分散体系的气泡尺寸分布、Sauter平均直径dvs、体积传质系数kLa和氧气吸收效率。比界面面积和气体吸收效率的值显着大于常规的毫气泡分散体的值。

项目成果

Degradation Characteristics of Phenolic Compounds Using Micro-Bubbles of Ozonated Oxygen

臭氧微泡对酚类化合物的降解特性

• 发表时间: 2012
• 期刊: J. Chem. Eng. Japan
• 作者: K;Muroyama;A. Kawabata;Y. Yamaguchi and J. Hayashi
• 通讯作者: Y. Yamaguchi and J. Hayashi

オゾンを用いたp-クロロフェノールの分解特性

对氯苯酚的臭氧分解特性

• 发表时间: 2009
• 作者: 川端昭寛;諏訪慎一;室山勝彦
• 通讯作者: 室山勝彦

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Transport Properties of Micro-Bubbles in a Bubble Column

气泡塔中微气泡的传输特性

• 发表时间: 2012
• 期刊: J. Chem. Eng. Japan
• 作者: K. Muroyama;Y. Oka and R. Fujiki
• 通讯作者: Y. Oka and R. Fujiki

Hydrodynamics and mass transfer properties of micro-bubbles in a bubble column

泡罩塔中微泡的流体动力学和传质特性

• 发表时间: 2011
• 期刊: The 10th Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering
• 作者: K.Muroyama;T.Sanda;R.Fujiki;Y.Oka;S.Kubo
• 通讯作者: S.Kubo