Don’t rely on just oil-water separators to remove oils present in the wastestream.
FRC has worked with an automotive manufacturing supplier to provide a complete wastewater treatment solution for their plant and help meet industrial wastewater discharge requirements. The plant produces stamped steel parts for several major automobile assembly plants. This facility uses a significant quantity of oil, primarily mineral oils, to lubricate machinery and facilitate parts fabrication. When plant machinery is cleaned or undergoes maintenance, or when the plant floors and other surfaces are cleaned, these oils are discharged in high concentration from the plant in the effluent wastewater. With existing equipment, the plant consistently struggled to meet discharge requirements for Oil & Grease.
The plant had previously relied on a rudimentary oil-water separator (OWS) to remove the oils present in the waste-stream before discharge to the municipal treatment system. This system was frequently overwhelmed by the high oils concentration, articularly at times when wastewater volume increased dramatically due to the collection of rainwater in natural catchments formed by the geology underneath the plant site. Oils present a particular challenge for municipal systems, due to their tendency to polymerize and agglomerate within the municipal infrastructure, which, over time, can constrict the capacity of the system as a whole and require expensive manual cleaning of the municipal pipes.
To mitigate this these challenges at the stamping plant, FRC suggested the installation of a Dissolved Air Flotation (DAF) system. The system would be designed, manufactured and integrated on a single skid, ensuring a smooth installation and startup on-site. Turn-key installation and commissioning of the system was also performed by FRC. Other treatment technologies considered, included: 1) ultrafiltration (UF) and 2) evaporation.
Read the complete case study HERE.