Acetic Acid to MicroC® 2000: Virginia WWTP Boosts Savings & EBPR Performance

A Virginia municipal WWTP using VFA (volatile fatty acid) acetic acid as a carbon source for enhanced biological phosphorus removal discovers EOSi’s lower-cost/higher-performing MicroC® 2000 delivers a substantial feed rate reduction and an approximate 30% cost savings.

This 5 MGD facility discharges to the Potomac River Basin. The facility was recently upgraded to achieve Enhanced Nutrient Removal objectives of 4 mg/L of Total Nitrogen (TN) and 0.3 mg/L of Total Phosphorus (TP). The major components of the upgrade included two new 5 stage biological reactor trains, two new secondary clarifiers, new primary clarifiers, new tertiary denitrification filters, conversion of existing ditches to plug flow reactors, new solids processing equipment and chemical storage and feed equipment for 20% acetic acid and aluminum sulfate (alum).