Membrane bioreactors can be an attractive wastewater treatment option, delivering high-quality effluent in a relatively compact footprint.MBRs combine conventional activated sludge treatment with membrane filtration, delivering advanced removal of organic and suspended solids and, if so designed, significant nutrient removal as well.At WEFTEC last October, Veolia Water Technologies & Solutions introduced a new version of its ZeeWeed 500 MBR for larger municipal applications. It is designed to enable expansion of capacity at low capital expense, reduce energy costs and provide long membrane life with simplified maintenance.The ZeeWeed 500 series has a record of longevity and reliability and has some 2,500
