Sludge thickening solutions

ANDRITZ sludge thickening solutions are designed to maximize water removal efficiency while reducing chemical consumption and overall operating costs. By focusing on optimal gravity thickening for primary sludge and highly efficient conditioning of secondary sludge, these solutions help minimize the use of flocculants and improve downstream dewatering performance. ANDRITZ offers complete turnkey support—from equipment and process design to testing and consulting—to ensure the right combination of technologies for each plant.
The thickening portfolio includes versatile decanter centrifuges, reliable drum thickeners, and high‑capacity gravity belt thickeners. Built for durability, flexibility, and easy operation, these systems deliver consistent solids concentration with minimal supervision and low energy demand. Whether for pre‑digestion, pre‑dewatering, or volume reduction before transport, ANDRITZ thickening technologies ensure stable performance, small footprint requirements, and efficient water recovery, supporting smooth and cost-effective sludge treatment processes.