Introduction The equalization tank is a crucial component in a Sewage Treatment Plant (STP), serving as the first collection and buffering stage. It regulates the fluctuating inflow of raw sewage from bar screen chambers, oil traps, and grit separators, ensuring a steady and controlled flow to the treatment process. This tank plays a vital role in preventing system overloads during peak hours while maintaining efficient wastewater treatment. Additionally, aeration through coarse bubble diffusers helps in mixing and preventing sedimentation, optimizing the efficiency of the STP. Equalization Tank The sewage from the bar screen chamber and oil, grease and grit trap comes to the equalization tank. The equalization tank is the first collection tank in an STP Its main function is to act as buffer: To collect the incoming raw sewage that comes at widely fluctuating rates, and pass it on to the rest of the STP at a steady (average) flow rate. During the peak hours, sewage comes at a high...
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