Case Study: Metal-Plating Wastewater (MI) - DEXSORB Full-Scale

A metal plating service provider detected twelve PFAS at a total concentration of 36,704 ppt in the fi nal process water at its Michigan facility. PFOS was detected at 840 ppt on average, in excess of the city PFOS discharge limit of 28 ppt. The facility utilizes coagulation and sedimentation process to remove metals and requires PFAS treatment prior to discharge to the city’s sanitary sewer.

Cyclopure engineers designed and installed a full-scale DEXSORB PBF system, consisting of two vessels in lead-lag confi guration. See Figure 1 for fullscale system. The DEXSORB system operates at a 45- gpm fl ow rate for approximately 18 hours per day, 5 days per week.