The Rotary Drum Thickener from BDP Industries effectively thickens various water, wastewater and industrial biosolids. With its compact design, trouble-free operation, low maintenance, and enclosure for odor control, it is an ideal option for many thickening applications. The company has manufactured the same fundamental design with an internally baffled, center shaft support since 1978. The design includes a sealed first compartment for increased flocculation time, and trunnion supports on the center shaft, keeping them away from the process fluid. 518-695-6851; www.bdpindustries.com; Booth 1016.