A Novel, Optical, On-Line Method for Automated Polymer Dosage Control in Continuous Belt Dewatering Units

摘要

Sludge dewatering is the separation of a liquid and solid phase. An optimal process renders the least possible residual moisture in the solid phase (the cake), and the lowest solid particle residues in the liquid phase (the centrate). Continuos Belt Machines are widely employed in higher throughput municipal and industrial thickening and dewatering operations. The machines can achieve substantial reductions in water content continuously, at relatively modest capital and operating cost, reduced energy consumption and relying on simple mechanical systems that are easy to maintain (WEF 2008; 2012).