New service-water supply center in operation Three-stage water treatment using a membrane bioreactor Rüdiger Recknagel, Head of Environmental Protection: “We are reducing fresh water requirements at the Ingolstadt site by one third and avoiding 40 percent of wastewater.” Audi has reached another milestone on its way to wastewater-free automobile production. The company has put a new service-water supply center into operation at the Ingolstadt site. In conjunction with...