High-BOD Loading Process Using Deep Aeration Tanks

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概要

• 論文の詳細を見る

• A deep aeration process capable of treating high-BOD wastewater at high levels of BOD loading was investigated.The relation between oxygen transfer rate (OTR) and superficial gas velocity (V_s) in a 10-m deep aeration tank is shown by the following equation.(OTR)=2.264×10^8 (V_s)^<1.185> In the treatment of bean paste wastewater at OTR values of 13,20 and 30 mol/m^3・hr, maximum BOD loading was found to be directly proportional to the OTR. Wastewater with a high BOD of 3,500 mg/l was treated at a maximum BOD loading of 15.3 kg/m^3・day at an OTR of 30 mol/m^3・hr. BOD removal and the sludge volume index (SVI) value were 93% and 90 ml/g. The power required to operate the 10-m deep aeration tank was 0.49 kWhr/kg-BOD removed.

• 公益社団法人日本生物工学会の論文
• 1981-10-25

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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