Simulation and optimization of ammonia removal at low temperature for a double channel oxidation ditch based on fully coupled activated sludge model (FCASM): A full-scale study

2013 ◽  
Vol 143 ◽  
pp. 538-548 ◽  
Author(s):  
Min Yang ◽  
Peide Sun ◽  
Ruyi Wang ◽  
Jingyi Han ◽  
Jianqiao Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Activated Sludge ◽  
Ammonia Removal ◽  
Full Scale ◽  
Oxidation Ditch ◽  
Activated Sludge Model ◽  
Simulation And Optimization ◽  
Fully Coupled ◽  
Double Channel

Fully coupled activated sludge model (FCASM): Model development

2009 ◽  
Vol 100 (20) ◽  
pp. 4632-4641 ◽  
Author(s):  
Peide Sun ◽  
Ruyi Wang ◽  
Zhiguo Fang
Keyword(s):  
Activated Sludge ◽  
Model Development ◽  
Activated Sludge Model ◽  
Fully Coupled

Modelling of wastewater treatment plants – how far shall we go with sophisticated modelling tools?

2006 ◽  
Vol 53 (3) ◽  
pp. 79-89 ◽  
Author(s):  
G.C. Glover ◽  
C. Printemps ◽  
K. Essemiani ◽  
J. Meinhold
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plants ◽  
Pilot Scale ◽  
Full Scale ◽  
Structure Identification ◽  
Oxidation Ditch ◽  
Computational Fluid Dynamics Analysis

Several levels of complexity are available for modelling of wastewater treatment plants. Modelling local effects rely on computational fluid dynamics (CFD) approaches whereas activated sludge models (ASM) represent the global methodology. By applying both modelling approaches to pilot plant and full scale systems, this paper evaluates the value of each method and especially their potential combination. Model structure identification for ASM is discussed based on a full-scale closed loop oxidation ditch modelling. It is illustrated how and for what circumstances information obtained via CFD (computational fluid dynamics) analysis, residence time distribution (RTD) and other experimental means can be used. Furthermore, CFD analysis of the multiphase flow mechanisms is employed to obtain a correct description of the oxygenation capacity of the system studied, including an easy implementation of this information in the classical ASM modelling (e.g. oxygen transfer). The combination of CFD and activated sludge modelling of wastewater treatment processes is applied to three reactor configurations, a perfectly mixed reactor, a pilot scale activated sludge basin (ASB) and a real scale ASB. The application of the biological models to the CFD model is validated against experimentation for the pilot scale ASB and against a classical global ASM model response. A first step in the evaluation of the potential of the combined CFD-ASM model is performed using a full scale oxidation ditch system as testing scenario.

scholarly journals Improving the operation of the full scale wastewater treatment plantwith use of a complex activated sludge model

2013 ◽  
Vol 39 (1) ◽  
Author(s):  
Ewa Liwarska-Bizukojc ◽  
Rafał Biernacki ◽  
Dorota Gendaszewska ◽  
Stanisław Ledakowicz
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Full Scale ◽  
Activated Sludge Model
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