In April 2014, the Berkeley County Public Service Sewer District (BCPSSD) contracted with BCR Environmental to install CleanB systems at four of its wastewater treatment plants to upgrade to Class B biosolids production. BCPSSD chose to install the CleanB systems as a lower capital and operating cost alternative to aerobic digestion.
Berkeley County is part of the Chesapeake Bay Watershed, the largest estuary in the United States. Excessive nutrient runoff is a major challenge facing the bay, and the BCPSSD was seeking solutions that would reduce nutrient runoff as part of its overall improvement program. The CleanB solution will allow BCPSSD to reduce its impact on the Chesapeake Bay Watershed by producing an end product that will allow soils to better retain nutrients which could otherwise leach from the soil into the local water system.
The BCPSSD CleanB systems will process Waste Activated Sludge (WAS) from the County’s wastewater treatment plants. Treated residuals will then be dewatered and beneficially reused. The CleanB systems are outfitted with control systems and monitoring devices to record process parameters and ensure consistent, repeatable biosolids treatment.