The existing three-tank settling system could provide the necessary mechanism in which to separate bottom solids from surface oil and grease flotation. It was still necessary to develop a method to reclaim and reuse the treated wastewater. In order to use the pretreated wastewater to recharge the tumbling barrels, Precise Products would have to reroute the wastewater back to the tumbling barrels. The company decided to redesign the existing wastewater holding tank to function as an unattended, hydraulically-safe component. The New System In Precise Products new treatment process, water from the tumbling process flows through three settling tanks.
Oil is skimmed from the tops of the tanks, and solids are removed from the bottoms.
They are disposed of off site. The clarified wastewater is pumped to a 500 gallon holding tank, where small amounts of makeup water are added. From there, it is pumped back to the tumbling barrels to be reused. A switch at the barrels allows the operator to activate the system. No wastewater is pumped to the sewer.