Wastewater systems located in regions with high annual precipitation, such as the Pacific Northwest, are prone to experiencing biological washouts due to high infiltration and inflow (I&I) from collection systems. I&I can critically disrupt the biological treatment at a plant.
Increased storm water and infiltration inputs can dilute influent organic substrate and washout established biomass. As a result, the biology in the system losses connectivity with the food supply and functional community structure. The following reference of work describes the application of ProBiotic Scrubber® II (PBII) and Candy Carbon® (CC) to restore the biological treatment in an activated sludge plant (ASP).