The MBR Blog

Misc Simon Judd 2

Simon Judd

Professor Simon Judd has over 20 years’ experience in teaching the fundamentals of water and wastewater technologies and is author of The MBR Book, Watermaths, and Industrial MBRs. Contact Simon at

Influent quality − garbage in …?

Many of the challenges faced by MBRs have very little to do with the membrane technology and everything to do with the components or issues around it.  This can include the software, the screens, the maintenance scheduling, the training but also influent flow and quality.

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MABRs (or membrane aeration bioreactors to you and me)

The term 'MABR' was first introduced by Mike Semmens of the University of Minnesota. The large body of research at Cranfield University was actually preceded by a collaborative research programme on MABRs between Tom Stephenson of Cranfield and Semmens in the early 1990s.

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The cost of ceramic membranes for MBRs

Surely, ceramic membranes are just too damned expensive, aren’t they? Well, as someone who’s dabbled in cost analysis every once in a while, let’s just run through the process for operating expenditure (OPEX).

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Exploring the possibilities of MBR Modelling

I have, in my time, had the pleasure of conversing with such people working on both biological and membrane separation processes and there can be little doubt that they have all demonstrated a keen interest in the practicalities of the technologies.

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IFAT Munich 2016 − a report

As the largest water−wastewater−waste trade show globally, Munich’s IFAT (30 May−​3 June 2016) was certainly a sizeable affair. The Messe München venue, handily placed at the end of the U2 metro line, comprises 16 aircraft hanger-sized halls.

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