Paper Title:
Dewaterability of Aerobic Granular Sludge
  Abstract

Dewatering characteristics of aerobic granular sludge, activated sludge and sludge which mixed flocculant was studied. It was shown that the specific resistance of aerobic granular sludge is lower than activated sludge and sludge with mixed flocculant was in the range of 1.07~1.80×109 S2/g, and it increased with the increase of diameters of the granules. The water ratio of aerobic granular sludge by pressure filtrate dehydration was decreased to 83.5~86.1%, activated sludge and sludge which mixed flocculant were 94.2% and 91.4%, respectively. The structural characteristics, distribution features of extracellular polymeric substances and PN/PS values of aerobic granular sludge were important factors of its excellent dewaterability. Aerobic granular sludge technology was regarded as one of the promising biotechnologies in sludge treatment.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
2944-2948
DOI
10.4028/www.scientific.net/AMM.90-93.2944
Citation
Y. N. Zhou, J. Li, J. Li, S. Wei, "Dewaterability of Aerobic Granular Sludge", Applied Mechanics and Materials, Vols. 90-93, pp. 2944-2948, 2011
Online since
September 2011
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