Abstract

Water is one of the basic human needs and thecountry has the main responsibility to confirm their citizens’provision to safe water. Most of the countries in the worldsupply treated water to the country through water treatmentplants. In drinking water treatment plants, solid sludge isgenerated at the end of the water treatment process as a wasteproduct which is now becoming a global problem. In previousstudies, shrinkage was identified as the major problem ofdrinking water treatment sludge (DWTS), accrued when use itas a raw material. This study was conducted to analyze theperformance of both chemical and physical additives, toidentify the possible additive to overcome the shrinkage ofDWTS. In the study eight mixtures were prepared by addingStyrene Acrylic Binder as the chemical additive and sand andsugarcane fiber as physical additives separately and togetherand volumetric shrinkage of each mix was measured weekly.According to the results of this study it was concluded as,shrinkage of DWTS can be reduced by adding physicaladditives. Physical additives perform more effectively thanchemical additives in the reduction of shrinkage of DWTS.Further studies are required to find the optimum mixing ratiosof physical additives to optimize the performances.