In activated sludge processes the oxygen utilization rate will always exceed the rate of natural replenishment, thus an artificial means of adding oxygen is a necessity. Oxygen is supplied by aerating the mixed liquor in the biological reactor.
S.A.M.E. WATER produces two aeration systems which can be installed for a range of applications and conditions: vertical shaft / floating vertical shaft and fine bubble aeration.
VERTICAL SHAFT AERATION / FLOATING AERATION
The S.A.M.E. WATER Aerator is a low-speed vertical shaft aerator consisting of eight vertical curved blades welded to a specially formed laser-cut disc. The shape of the blades is under practical circumstances designed to perform at maximum efficiency for both oxygen input and propulsion capacity. The aerator shape is designed for decreasing the hydraulic reaction forces and to guide the water over the top of the aerator to increase oxygen input. The robust drive tube is constructed as a single shaft connected to the gearbox with a rigid coupling using high-tensile fastening bolts. Aerators can be equipped with optional aeration covers made of steel or non-metallic materials to minimize aerosol emissions. A floating model for basins or ponds with widely fluctuating water levels is available.
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