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Membranes 2013, 3(2), 24-43; doi:10.3390/membranes3020024

Development and Testing of a Fully Adaptable Membrane Bioreactor Fouling Model for a Sidestream Configuration System

School of Engineering and Design, Brunel University, Uxbridge, Middlesex UB8 3PH, UK
Received: 23 March 2013 / Revised: 17 April 2013 / Accepted: 17 April 2013 / Published: 24 April 2013
(This article belongs to the Special Issue Membranes in Water Purification)
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A dead-end filtration model that includes the three main fouling mechanisms mentioned in Hermia (i.e., cake build-up, complete pore blocking, and pore constriction) and that was based on a constant trans-membrane pressure (TMP) operation was extensively modified so it could be used for a sidestream configuration membrane bioreactor (MBR) situation. Modifications and add-ons to this basic model included: alteration so that it could be used for varying flux and varying TMP operations; inclusion of a backwash mode; it described pore constriction (i.e., irreversible fouling) in relation to the concentration of soluble microbial products (SMP) in the liquor; and, it could be used in a cross flow scenario by the addition of scouring terms in the model formulation. The additional terms in this modified model were checked against an already published model to see if they made sense, physically speaking. Next this modified model was calibrated and validated in Matlab© using data collected by carrying out flux stepping tests on both a pilot sidestream MBR plant, and then a pilot membrane filtration unit. The model fit proved good, especially for the pilot filtration unit data. In conclusion, this model formulation is of the right level of complexity to be used for most practical MBR situations. View Full-Text
Keywords: wastewater treatment; membrane bioreactor; modelling; time series analysis wastewater treatment; membrane bioreactor; modelling; time series analysis

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Paul, P. Development and Testing of a Fully Adaptable Membrane Bioreactor Fouling Model for a Sidestream Configuration System. Membranes 2013, 3, 24-43.

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