Membrane Bioreactors Short Course Abstracts - National Water ...

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38 JOHN HATCHER is the Wastewater Supervisor for Oconee County Utility Department, which provides drinking water and sanitary sewer service to its customers within the service areas inside Oconee County, Georgia. As Wastewater Supervisor, he is responsible for the daily operation and compliance of a conventional wastewater treatment plant and a land-application wastewater plant. Recently, he won two awards from the Georgia Water and Pollution Control Association, one of which was for the Calls Creek Wastewater Treatment Plant, which discharges into the Calls Creek watershed. Hatcher received a B.S. in Environmental Health Science from the University of Georgia. He is also a licensed water and wastewater treatment plant operator in the State of Georgia.
Session 3: Case Studies - Real-World Issues with Membrane Bioreactors Membrane Bioreactor Applications: A Global Perspective SIMON J. JUDD, PH.D. Cranfield University Bedfordshire, United Kingdom Pilot-Plant Studies Since membrane bioreactor (MBR) performance is highly dependent upon feedwater quality, a true comparison of the performance of different MBR technologies can only be achieved when they are tested against the same feedwater matrix. A number of comparative pilot trials have been conducted over the past 5 years, which permit a useful technology comparison (Table 1), albeit with certain caveats. The studies identified in Table 1 have all been conducted this millennium, and all employ at least one full-scale membrane module and at least three different technologies. Not all of these studies have been published, however. Table 1. Comparative Pilot-Plant Trials Reference Technology Adham Van der Tao Honolulu Lawrence Trento EAWAG Tested et al. Roest et al. et al. (2005) et al. (2005) (2005) (2002) Zenon X X X X X X Kubota X X X X X X Mitsubishi Rayon X X X X X Norit – X – Huber (X) X Memcor X X X Toray X Comparative Parameters To allow a comparison of disparate sets of data from various full-scale plants, normalization of the data is required. The most convenient parameters to use are flux (J, liters per cubic meter per hour [LMH]), permeability (K, LMH/bar), and specific aeration demand with respect to membrane area (SAD m , Nm 3 hr -1 m -2 or m hr -1 ) and permeate volume (SAD p , Nm 3 air per m 3 permeate [i.e., unitless]). A comparison of such data for full- and pilot-scale plants is provided in Table 2. Correspondence should be addressed to: Simon J. Judd, Ph.D. Professor in Membrane Technology and Director of Water Sciences Building 61 Cranfield University Bedfordshire MK43 0AL United Kingdom Phone: (+44) (0)1234 754173 • Email: s.j.judd@cranfield.ac.uk A Short Course on Membrane Bioreactors 39
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