For municipal sewage sludge disposal, conventional thermal drying is an important pretreatment but it consumes large amount of energy. An sludge composite modifier (SCM) which comprises a mixture of three cementitious components (slag, cement clinker, and dihydrate gypsum) was proposed for sludge drying and stabilization. The drying experiments of municipal sewage sludge were carried out to decrease the moisture content of sewage sludge. Effect of SCM components on sludge moisture content was analyzed using uniform design, and the optimum composition of SCM was determined by computer-aided mod...
