A new municipal wastewater treatment flowsheet was developed with the objectives of energy sustainability, and water and nutrient recovery. Energy is derived by shunting a large fraction of the organic carbon in the wastewater to an anaerobic digestion system. Aerobic and anaerobic membrane bioreactors play a key role in energy recovery. Phosphorus and nitrogen are removed from the wastewater and recovered through physical-chemical processes. Computer modeling and simulation results together with energy balance calculations, imply the new flowsheet will result in a dramatic reduction in energy usage at lower treatment plant capital costs in comparison to conventional methods.
Treating municipal wastewater with the goal of resource recovery
P. M. Sutton, H. Melcer, O. J. Schraa, A. P. Togna; Treating municipal wastewater with the goal of resource recovery. Water Sci Technol 1 January 2011; 63 (1): 25–31. doi: https://doi.org/10.2166/wst.2011.004
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