Quantitative simulation of the granulation process of activated sludge for wastewater treatment

Ni, Bing-Jie, Sheng, Guo-Ping, Li, Xiao-Yan and Yu, Han-Qing (2010) Quantitative simulation of the granulation process of activated sludge for wastewater treatment. Industrial and Engineering Chemistry Research, 49 6: 2864-2873. doi:10.1021/ie901252k


Author Ni, Bing-Jie
Sheng, Guo-Ping
Li, Xiao-Yan
Yu, Han-Qing
Title Quantitative simulation of the granulation process of activated sludge for wastewater treatment
Journal name Industrial and Engineering Chemistry Research   Check publisher's open access policy
ISSN 0888-5885
1520-5045
Publication date 2010-03
Sub-type Article (original research)
DOI 10.1021/ie901252k
Volume 49
Issue 6
Start page 2864
End page 2873
Total pages 10
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Abstract The granulation process of activated sludge, taking the sludge in two sequencing batch reactors (SBRs) respectively fed with soybean-processing and fatty-acids-rich wastewaters as an example, is quantitatively simulated in this work. On the basis of a mixed-culture biofilm model and a simultaneous storage and growth model, a new model incorporating microbial growth, oxygen transfer, substrate diffusion, increased granule size, and biomass detachment is formulated to describe the granulation process of activated sludge. Parameter estimation results of no evident cross-correlation and low 95% confidence intervals indicate a good identification of the obtained parameter values. The model evaluation results of three different case studies demonstrate that the developed model is applicable to describing the aerobic sludge granulation process appropriately. With this model, the aerobic granulation process in terms of mean radius profiles could be quantitatively characterized.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Advanced Water Management Centre Publications
 
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