The document shows a hydraulic flow diagram for a sewage treatment plant at Hindalco Industries' Aditya Aluminium unit. Sewage and canteen waste enter collection tanks and are pumped to equalization tanks before entering UASB reactors for processing. The effluent then proceeds to aeration tanks, centrifuges for further treatment, and storage tanks before being pumped out as treated sanitary effluent. Sludge is also recirculated through the process.