Modern sewage treatment plant, view over a primary clarifier and recirculation basin for nitrification on digester towers, Kulmbach, Bavaria, Germany, Europe

and architecture basin bavaria bavarian building buildings clarifier day daylight daytime digester during europe european exterior exteriors federal for franconia franconian frg german germany kulmbach modern modern nitrification nobody of off on outdoor over photo photos plant plants primary recirculation republic run run off runoff sewage sewerage shot shots southern the tower towers treatment view views water works