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Water Practice & Technology © IWA Publishing 2006 |
doi10.2166/wpt.2006.077
Full scale application of the coupled alternate cycles-membrane bioreactor (AC-MBR) process for wastewater reclamation and reuse
P.Battistoni1, F.Fatone2, D.Bolzonella2, P.Pavan3
1Institute of Hydraulics and Transportation Infrastructures, Marche Polytechnical University, Via Brecce Bianche, 60131 Ancona, Italy
2Department of Science and Technology, University of Verona. Strada Le Grazie,15 - 37134 Verona, Italy
3Department of Environmental Sciences, University of Venice, Dorsoduro, 2137 - 30123 Venice, Italy
ABSTRACT
The paper deals with the full scale application of the alternate cycles-membrane bioreactor (AC-MBR) process for wastewater reclamation and reuse. The studied plant treats up to 6000 m3/d and is located at Viareggio, central Italy. The validation of the process is presented discussing its behaviour in two different steady state conditions: the first with MLSS of some 8 g/l at 18.7 Celsius degrees, and the second with some 6 g/l at 24.3 Celsius degrees. Removals of TSS, COD and TN were 100%, >90% and >80%, respectively, while TP removal reached values up to 67% without any chemical precipitation process. The specific energy consumptions were 110÷113 Wh/PE depending mainly on the adopted MLSS.
Keywords: Membranes; Alternate Cycles Process; Wastewater Reuse; Upgrading
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