The Real-Time Control system for Sludge Dewatering (RTC-SD) from Hach Company allows plants to achieve optimized polymer dosages by analyzing flow and feed sludge concentration in real time. This results in lower polymer usage, greater solids capture, and less maintenance within the plant. It can help improve solids capture and throughput, leading to increased throughput and reduced secondary wasting rates. 800/227-4224; www.hach.com; Booth 3814.