Scaling-up of Aeration Tanks in Activated Sludge Process

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概要

• 論文の詳細を見る

• A method of scaling-up the aeration tanks in the activated sludge process by using oxygen transfer rate (OTR) as a parameter was investigated.As a result of increasing the OTR, which was measured by the sulfite oxidation method, in the aeration tanks, BOD loading increased. Bean paste wastewater with BOD values ranging from 340 to 1,540 mg/l was treated in a pilot plant aeration tank with cylinders with perforated plates at an OTR of 24 mol/m^3・hr. BOD loading levels with BOD removal rates exceeding 90% ranged from 1.0 to 5.5 kg/m^3・day, and SVI values ranged from 200 to 600 ml/g. These results agreed with those obtained with the same OTR in a bench-scale test.

• 公益社団法人日本生物工学会の論文
• 1980-12-25

著者

• SHIMIZU NORIO

  Hitachi Research Laboratory, Hitachi Ltd.,

• Odawara Yooji

  Hitachi Research Laboratory Hitachi Ltd.

• Shimizu Norio

  Hitachi Research Laboratory Hitachi Ltd.

関連論文

• Floc-Forming Bacteria Isolated from Activated Sludge in High-BOD Loading Treatment
• High-BOD Loading Treatment using Large-Scale Deep Aeration Tanks
• Scaling-up of Aeration Tanks in Activated Sludge Process
• High-BOD Loading Process Using Deep Aeration Tanks
• Baker's Yeast growth with High Concentations of Carbon Dioxide in Exit Gas

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