The air-saturated water used for flotation is
generated by the plant DAF recycle system. Approximately
15% of the DAF clarified water is
recycled. The recycled water is pressurized to over
150 psig using a set of five fixed-speed centrifugal
pumps. Each pump is equipped with a stainless
steel 3 inch eductor. The eductor entrains air
into the recycle flow