Drying Characteristics and Odor Concentration in Tail Gas in Vacuum Drying of Municipal Sewage Sludge

As one of the most common solid wastes, municipal sewage sludge needs to be dried before its disposal and resource reuse. In this study, effects vacuum degree, heat source temperature thickness on drying rate odor concentration in tail gas were studied through orthogonal experiments carried out lab-scale heat-conductive device; The comparative atmospheric state (-0.08MPa). results show that is main factor affecting static rate, degree drying. Under (-0.08MPa), can efficiently while using low-grade source. addition, maintaining a high will also significantly reduced by reducing generation volatile sulphur compounds (VSCs).