Membrane Bioreactor (MBR) systems in wastewater treatment plants offer several operational and economic advantages compared to conventional wastewater treatment plants. One such advantage is reduced energy requirements. By incorporating Suez membrane technology, MBR systems eliminate the need for secondary clarifiers and tertiary treatment. This allows for increased performance. With over two decades of membrane bioreactor experience, SUEZ delivers advanced MBR technology and solutions for a wide scope of needs. A membrane bioreactor combines a biological treatment step, usually activated sludge, with a membrane step, usually a low pressure ultrafiltration or microfiltration membrane for wastewater treatment. SUEZ membrane bioreactors use ultrafiltration membranes to perform the separation function of solids from the water in wastewater treatment.