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Research on technique of aerobic granular sludge cultivationby seeding EGSB anaerobic granular sludge

ZHANG Ying1,LANG Yongmei2,ZHAO Yuxiao1,ZHANG Jianda1,QIAO Peng1,LI Shanping1   

  1. 1. School of Environment Science and Engineering,Shandong University,Jinan 250100,China；2. Shandong Academy of Environmental Science,Jinan 250013,China
  • Received:2006-04-20 Revised:1900-01-01 Online:2006-08-24 Published:2006-08-24
  • Contact: ZHANG Ying

Abstract: Anaerobic granular sludge from EGSB was inoculated to an SBR, where glucose was used as the carbon source and aerobic condition was kept, in order to research the technology of aerobic granular sludge cultivated by anaerobic granular sludge. The changes of granules' shape, structure, COD, TP, TN and SS are observed in order to study the process of cultivating aerobic granular sludge. The reserches find that the anaerobic granular takes a role of carriers, and the sludge concentration, granular diameter and settlement ability decrease at first and then increase to constant stage for 45 days. And the aerobic granular sludge is different from naerobic granular sludge at diameter and structureotcetc, and its removal rates of COD, TP, TN can reach 94%, 70% and 60%, respectively.

Key words: aerobic granular sludge, degradation kinetics curve , anaerobic granular sludge

[1] LI Shan-ping,ZHAO Yu-xiao,QIAO Peng,FENG Zheng-zhi . Cultivation of aerobic granular sludge and the kinetics of substrate degradation and biomass growth [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2008, 38(3): 95-98 .
[2] . Properties and formation mechanism of aerobic granular sludge [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(3): 116-119 .
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