Stable Operational Condition of Submerged Membrane Activated Sludge Process without Sludge Withdrawal

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概要

• 論文の詳細を見る

• An equipment of a submerged membrane activated sludge process without sludge withdrawal was operated at three BOD loadings (0.25, 0.5 and 0.6 kg-BOD/(m3·d)) to find out its stable operational condition. The stabilized and final values of MLSS were increased with BOD loadings and the conversion ratios (0.04–0.15 kg-MLSS/kg-BOD) of substrate to biomass were much smaller than the conventional activated sludge process. The supernatant TOC in the bioreactor was low in all runs and then organic matters were not accumulated. At low BOD loadings (0.25, 0.5 kg-BOD/(m3·d)), suction pressure was constant or increased very slowly, but at the highest BOD loading (0.6 kg-BOD/(m3·d)) the pressure and total filtration resistance were increased abruptly and failed the operation rather soon. The good stable operational condition without sludge withdrawal was obtained at BOD loading below 0.5 kg-BOD/(m3·d).

• 社団法人 化学工学会の論文
• 2003-12-01

著者

• MATSUDA Akira

  Department of Hematology, Saitama International Medical Center, Saitama Medical University

• YAMAGUCHI Mami

  Department of Food Chemistry, Tohoku University

• Yamaguchi Mami

  Department Of Applied Chemistry Ehime University

• Matsuda A

  Graduate School Of Pharmaceutical Sciences Hokkaido University

• Matsuda A

  Faculty Of Pharmaceutical Sciences Hokkaido University

• Bhatta Chandika

  Department Of Applied Chemistry Ehime University

• Matsuda Akira

  Department Of Pharmaceutical Sciences Faculty Of Pharmaceutical Sciences

• Matsuda A

  Department Of Applied Chemistry Ehime University

• Matsuda A

  Hokkaido Univ. Sapporo

• Matsuda Akira

  The Department Of Internal Medicine Kin-ikyo Chuo Hospital

• KAWASAKI Kenji

  Department of Applied Chemistry, Ehime University

• MAEHANA Yoshiaki

  Department of Applied Chemistry, Ehime University

• OMORI Daisuke

  Environmental Facilities, Daiki Company

• NOMA YUICHI

  Department of Applied Chemistry, Ehime University

• Noma Yuichi

  Department Of Applied Chemistry Ehime University

• Omori Daisuke

  Environmental Facilities Daiki Company

• Kawasaki K

  Department Of Applied Chemistry Ehime University

• Matsuda Akira

  Department Of Applied Chemistry Ehime University

• Maehana Yoshiaki

  Department Of Applied Chemistry Ehime University

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