Belt Drying of Sludge : Springer Vieweg : 9783662664476 : 366266447X : 31 Jan 2024 : This professional book deals with belt drying of sewage sludge, mainly of municipal but also of industrial origin. The wastewater treatment resulting in sludge production is briefly described. The types of sludge and their degree of stabilization is treated in depth as they have a high impact on their suitability for belt drying and the necessary exhaust air treatment. Different belt drying systems with or without condensing units and with extruding of dewatered sludge or partial recirculation of dried sludge are presented. Specific water evaporation and energy demand are tabulated for each dryer system on basis of indications of dryer manufacturers, measurements or information of dryer operators. Different sources for thermal energy are stipulated and complete systems of energy supply with internal or external usage of exhaust energy described. Occurring gas compounds in dryer exhaust air and their sp