Washington DC - Piscataway

Washington DC - Piscataway

The Washington Suburban Sanitary Commission (WSSC Water) developed its largest and most technically advanced project, the modernisation of the Piscataway Water Resource Recovery Facility in Maryland. The Piscataway Bioenergy Project, as it is called, aims to make the plant a sludge centre for five other plants owned by the utility.  

WSSC Water pre-selected Cambi following the success of the thermal hydrolysis process technology at DC Water's Blue Plains Advanced Water Treatment Plant, which also services a portion of Maryland. With Cambi's process, the utility will shift to advanced anaerobic digestion and turn the site's limed Class B biosolids into Class A output.

The cost savings for customers are estimated to be $3.4 million annually because of the reduction in biosolids hauling and management costs and a decrease in chemical costs attributed to no longer needing lime for biosolids stabilization (achieved via thermal hydrolysis and digestion).  

Source: www.wsscwater.com/news