Aeration Basins

Purpose: The aeration basins are where the biological treatment activity occurs. After preliminary treatment, the wastewater flows to the aeration basins where it is mixed with the return activated sludge to create the biological mass or mixed liquor. Air is bubbled through the mixed liquor to provide oxygen for the biological activity. The bottom dimensions are 50' x I00', the operating water depth is 15' and the working volume is 1.27 million gallons per basin.