Article ID Journal Published Year Pages File Type
4908645 Journal of Environmental Chemical Engineering 2016 13 Pages PDF
Abstract
Studying sludge rheology is an important factor for the management and disposal of produced sludge in a wastewater treatment plant. In this paper, the rheological characteristics of fresh and conditioned municipal sludge at different total solid contents (ranging from 1.8 to 3.7 g/l) were investigated. The selected conditioning agent was cationic polyacrylamide high molecular weight (CPAM-80). It was found that all samples behaved as shear thinning and limiting viscosity increased with increasing total solid concentration which followed Bingham model. In addition, settling index was increased by 50% with increasing solid content by 50%. The use of conditioning agent improved settling properties and the increased concentration of this agent reduced yield stress and limiting viscosity.
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
Authors
,