Why Anaerobic Digestion?
The scope of the project included pH adjustment, screening and equalization, a 2.2 million-gal Type S anaerobic ADI-BVF reactor, a twin-tank ADI sequencing batch reactor (SBR) system of 500,000 gallons, provision for cooling, reaeration and disinfection and a control building and laboratory. “We proposed an anaerobic digestion system because cheese processing wastewater is strong and warm, but it contains relatively high concentrations of fats, oils and grease (FOG) as well as degradable suspended solids,” said Peter McCarthy of ADI Systems, Inc. “The fats and solids make it difficult waste to treat in high-rate anaerobic reactors such as granular bed reactors, but make it an ideal wastewater for the low-rate ADI-BVF anaerobic reactor.” ADI specializes in design-build of anaerobic digestion systems. The wastewater treatment system built by ADI also includes aerobic treatment using an SBR system, UV disinfection and final effluent reaeration. Aerobic treatment and subsequent steps were
