Implementing an Improved Activated Sludge Model into Modeling Software

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dc.contributor.advisor Young, Stephanie Evans, Ryan Walter 2012-11-13T20:41:35Z 2012-11-13T20:41:35Z 2012-07
dc.description A Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Environmental Systems Engineering, University of Regina. xii, 84 l. en_US
dc.description.abstract Wastewater treatment modeling software is commonly used to aid in the design and operation of wastewater treatment facilities. This modeling software commonly utilizes activated sludge models that predict bacterial growth based on the Monod equation, which has a number of limitations. These limitations restrict the accuracy of the software and could lead to higher costs due to the overdesign of a wastewater treatment plant. An improved activated sludge model (IASM) was developed by Xu (2010) to address some of the problems associated with the Monod equation. In this study, the IASM is implemented into commercially available wastewater treatment modeling software. In this study, the BioWin simulation software is used as a reference for modeling software that incorporates the Activated Sludge Model No. 1 (ASM 1) and Activated Sludge Model No. 3 (ASM 3) as part of the overall modeling program. The equations within ASM 1 and ASM 3 that utilize the Monod equation were identified by evaluating which equations were used to model bacteriological growth. After identifying the appropriate equations, BioWin's built in Model Editor was used to modify the equations by replacing the Monod equation with the IASM equation. Simulations were then run on BioWin using ASM 1 and ASM 3 as well as the IASM modified versions of the models. Since BioWin was able to run the simulation using the modified models and no mathematical errors were encountered during the simulation, we can conclude that the IASM was successfully implemented into ASM 1 and ASM 3 within BioWin. en_US
dc.language.iso en en_US
dc.publisher Faculty of Graduate Studies and Research, University of Regina en_US
dc.subject.lcsh Sewage--Purification--Activated sludge process--Computer simulation
dc.subject.lcsh Sewage disposal plants--Design and construction--Computer simulation
dc.title Implementing an Improved Activated Sludge Model into Modeling Software en_US
dc.type Thesis en
dc.description.authorstatus Student en
dc.description.peerreview yes en Master of Applied Science (MASc) en_US Master's en Engineering - Environmental Systems en_US University of Regina en Faculty of Engineering and Applied Science en_US
dc.contributor.committeemember Veawab, Amornvadee
dc.contributor.committeemember Huang, Guo H.
dc.contributor.externalexaminer Aroonwilas, Adisorn
dc.identifier.tcnumber TC-SRU-3637

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