Next, Rex walked students through the physical plant and described the treatment process. Excess storm water is pumped back out and blead through sewer lines or stored in a tank. Before viewing the next treatment process, Rex showed us the control room and laboratory. The facility also contracts with Colfax laboratories for other analytical work. Rex continued to discuss the treatment process by discussing the oxidation ditch apparatus.
Wastewater is pumped into aerated concentric channels.
Bacteria in the sludge treat the wastewater. A return flow of treated water enters the clairifier where sludge settles out and is eventually is returned to the oxidation ditch or to sludge storage tanks. The clarifier measures flow via a Parhsall flume and weir system. Rex Hoover describes how large objects are removed from the influent. The magnetic field auto sampler.