A large poultry, kill, processing, and rendering plant was generating 1.4 MGD of wastewater and needed to meet direct discharge requirements for Total Suspended Solids (TSS), Fats, Oils, and Grease (FOG), and Biological Oxygen Demand (BOD). FRC designed a pretreatment solution using two DAFs in a duty/assist configuration for peak flowrates, followed by a secondary DAF for biological treatment. The pretreatment DAF units recover proteins that the customer sells to local renderers to generate additional income of over two million dollars per year.
Poultry Application: System Solution
The largest US turkey producer had a primary clarifier that was failing and forcing them out of compliance. FRC brought in a rental DAF for proof of concept for our solution. The permanent system was then designed using reactor tanks upstream of the DAF in order to adjust to the large change in flow rates. The existing clarifier was repurposed as a temporary equalization tank until a proper equalization system could be installed. The existing rotary drum screen remained for removal of coarse solids.