An upflow microaerobic sludge blanket reactor operating at high organic loading and low dissolved oxygen levels

作者：Zheng, Shaokui^*; Li, Huijun; Cui, Cancan

来源：Biotechnology Letters, 2011, 33(4): 693-697.

DOI：10.1007/s10529-010-0505-4

• Activated sludge
• Granular sludge
• Microaerophilic
• Upflow microaerobic sludge blanket

The activated sludge process (ASP) has high operational costs due to the need for aeration at dissolved O-2 (DO) levels of a parts per thousand yen2 mg l(-1) and high capital costs to construct large reactors due to a low organic loading [typically 1 kg chemical oxygen demand (COD) m(-3) day(-1)]. A novel method for improving the energy use and treatment efficiency of the ASP via limited oxygenation (0.4 mg DO l(-1)) and high organic loading (6.2 kg COD m(-3) day(-1)) is proposed based on a laboratory-scale ASP for ammonia-rich industrial wastewaters. The sludge blanket phenomenon and granulation occurred simultaneously in the upflow microaerobic reactor.

• 出版日期2011-4
• 单位北京师范大学