Aerobic granulation with brewery wastewater in a sequencing batch reactor

作者：Wang Shu Guang^*; Liu Xian Wei; Gong Wen Xin; Gao Bao Yu; Zhang Dong Hua; Yu Han Qing

来源：Bioresource Technology, 2007, 98(11): 2142-2147.

DOI：10.1016/j.biortech.2006.08.018

• aerobic granulation
• brewery wastewater
• cultivation
• denitrification
• SBR

Aerobic granular sludge was cultivated in a sequencing batch reactor fed with brewery wastewater. After nine-week operation, stable granules with sizes of 2-7 mm were obtained. With the granulation, the SVI value decreased from 87.5 to 32 mL/g. The granular sludge had an excellent settling ability with the settling velocity over 91 m/h. Aerobic granular sludge exhibited good performance in the organics and nitrogen removal from brewery wastewater. After granulation, high and stable removal efficiencies of 88.7% COD(t), 88.9% NH(4)(+)- N were achieved at the volumetric exchange ratio of 50% and cycle duration of 6 It, The average COD(t) and COD(s) of the effluent were 212 and 134 mg/L, respectively, and the average effluent ammonium concentration was less than 14.4 mg/L. Nitrogen was removed due to nitrification and simultaneous denitrification in the inner core of granules.

• 出版日期2007-8
• 单位山东大学; 中国科学技术大学