The Effect of the Freezing Column Diameter on Freezing and Thawing Treatment of Excess Activated Sludge

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概要

• 論文の詳細を見る

• The solid liquid separation characteristics of activated sludge are significantly improved by a freezing and thawing treatment. This improvement is much affected by the freezing rate when using the same freezing column. In this study, the effect of the freezing column diameter (inner diameter: 16-147 mm) on the freezing and thawing treatment is investigated. This parameter is important for scale up purposes. For inner diameters greater than 40 mm and at a constant freezing rate of 2 mm/h, changes in the freezing column inner diameter had a minimal impact on both the solid liquid separation characteristics and the decreasing ratio of the biological activity. Consequently, for the freezing columns with inner diameters of 40 mm and above, scale up of the freezing and thawing equipment can be undertaken with confidence.

• 社団法人 化学工学会の論文
• 2001-12-01

著者

• MATSUDA Akira

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

• KAWASAKI Kenji

  Department of Applied Chemistry, Ehime University

• AMAL Rose

  School of Chemical Engineering and Industrial Chemistry, Center for Particle and Catalyst Technologi

• Amal R

  Univ. New South Wales Sydney Aus

• Amal Rose

  School Of Chemical Engineering And Industrial Chemistry Center For Particle And Catalyst Technologie

• Matsuda Akira

  Department Of Applied Chemistry Ehime University

• BICKERT Gotz

  School of Chemical Engineering and Industrial Chemistry, The University of New South Wales

• Bickert Gotz

  School Of Chemical Engineering And Industrial Chemistry The University Of New South Wales

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