Flottweg Decanter Centrifuges for Wastewater and Sewage Sludge Requirements for the quality and efficiency of sewage treatment plants increase year after year, driven not least by the increasing costs of energy and disposal. As a result, the state of the art is now to use decanter centrifuges to dewater the incoming sludge. The high-performance centrifuges of the Flottweg C series achieve the best possible values for total dry solids in the sludge. Decades of experience in wastewater make Flottweg one of the leading providers of mechanical separation technology. We meet the special requirements of sewage treatment plants and water management in terms of dewatering performance, cost-effectiveness, and user-friendliness. Well-known and especially satisfied customers around the world can confirm that. The Flottweg decanters in the C series are attractive for their cost-effectiveness, performance, and long service life. The right machine is available for any size system.