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Steady-State Methodology for Activated Sludge Model 1 (ASM1) State Variable Calculation in MBR
Article

Appraisal of Super-Fast Membrane Bioreactors by MASM—A New Activated Sludge Model for Membrane Filtration

1
The Science Academy, Istanbul 34349, Turkey
2
Environmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Istanbul 34469, Turkey
3
Istanbul Water and Sewerage Administration, Istanbul 34060, Turkey
4
ENVIS Energy and Environmental Systems Research and Development Ltd., ITU ARI Technocity, Istanbul 34469, Turkey
*
Author to whom correspondence should be addressed.
Academic Editor: Jaime Lora Garcia
Water 2021, 13(14), 1963; https://doi.org/10.3390/w13141963
Received: 5 June 2021 / Revised: 9 July 2021 / Accepted: 11 July 2021 / Published: 17 July 2021
(This article belongs to the Special Issue Modelling Approach to Wastewater Membrane Filtration Processes)
The structure of existing activated models is inherently deficient in reflecting the major role of the membrane filtration. The study developed a novel model, MASM, for the membrane activated process. The effective filtration size imposed by the membrane module, entrapping larger particles, was adopted as the basis of the proposed model. The model defines a modified form of COD fractionation that accounts for the captured COD fractions as additional model components and utilizes related mass-balance relationships. It was implemented to test the fate of soluble hydrolyzable COD and the system performance of super-fast membrane activated sludge based on real data for the characterization and process kinetics of domestic sewage and denim processing effluents. Model evaluation was carried out for parallel systems with gravity settling and membrane filtration operated at a sludge age range of 0.5–2.0 d. Results reflected significantly better performance by the super-fast membrane activated sludge system for both wastewaters, underlining that it was crucially important to account for the captured COD fractions to provide an accurate evaluation of system behavior and effluent quality. This should also be identified as the major shortcoming of the ASM models for evaluating and predicting the system performance of activated sludge configurations with membrane separation. View Full-Text
Keywords: MASM; new model for membrane activated sludge system; super-fast membrane activated sludge; particle size distribution; modified COD fractionation; captured COD fractions MASM; new model for membrane activated sludge system; super-fast membrane activated sludge; particle size distribution; modified COD fractionation; captured COD fractions
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MDPI and ACS Style

Orhon, D.; Yucel, A.B.; Insel, G.; Solmaz, B.; Mermutlu, R.; Sözen, S. Appraisal of Super-Fast Membrane Bioreactors by MASM—A New Activated Sludge Model for Membrane Filtration. Water 2021, 13, 1963. https://doi.org/10.3390/w13141963

AMA Style

Orhon D, Yucel AB, Insel G, Solmaz B, Mermutlu R, Sözen S. Appraisal of Super-Fast Membrane Bioreactors by MASM—A New Activated Sludge Model for Membrane Filtration. Water. 2021; 13(14):1963. https://doi.org/10.3390/w13141963

Chicago/Turabian Style

Orhon, Derin, Ayse B. Yucel, Güçlü Insel, Bülent Solmaz, Raif Mermutlu, and Seval Sözen. 2021. "Appraisal of Super-Fast Membrane Bioreactors by MASM—A New Activated Sludge Model for Membrane Filtration" Water 13, no. 14: 1963. https://doi.org/10.3390/w13141963

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