title: Environmental investigation on co-combustion of sewage sludge and coal gangue: SO2, NOx and trace elements emissions.
abstract: To promote the utilization of waste material as alternative fuel, the mono- and co-combustion characteristics of sewage sludge (SS) and coal gangue (CG) were systematically investigated, with emphasis on environmental influences. The emission of SO2, NOx as well as the trace elements during combustion of SS and CG were studied with regard to the effects of their chemistries, structures and interactions. Results showed that co-combustion can be beneficial for ignition performance. A synergic effect on both desulfurization and denitrification can be expected at ca. 800°C. Further, an enhanced retention of trace elements during co-combustion was also observed, especially for Pb and Zn. On the basis of the results, it can be expected that, with proper operation, co-combustion of SS and CG can be a promising method for the disposal of these two wastes.
authors.affiliation: Beijing Key Laboratory for Solid Waste Utilization and Management and Department of Energy and Resource Engineering, College of Engineering, Peking University, Beijing 100871, PR China.
authors.forename: Zhenzhou
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Beijing Key Laboratory for Solid Waste Utilization and Management and Department of Energy and Resource Engineering, College of Engineering, Peking University, Beijing 100871, PR China.
authors.forename: Yingyi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Beijing Key Laboratory for Solid Waste Utilization and Management and Department of Energy and Resource Engineering, College of Engineering, Peking University, Beijing 100871, PR China.
authors.forename: Lili
authors.initials: L
authors.lastname: Liu
authors.affiliation: Beijing Key Laboratory for Solid Waste Utilization and Management and Department of Energy and Resource Engineering, College of Engineering, Peking University, Beijing 100871, PR China.
authors.forename: Xidong
authors.initials: X
authors.lastname: Wang
authors.affiliation: Beijing Key Laboratory for Solid Waste Utilization and Management and Department of Energy and Resource Engineering, College of Engineering, Peking University, Beijing 100871, PR China. Electronic address: zuotaizhang@pku.edu.cn.
authors.forename: Zuotai
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D003031:Coal / Q000032:analysis*; D017745:Incineration; D009589:Nitrogen Oxides / Q000032:analysis; D012722:Sewage / Q000032:analysis*; D013458:Sulfur Dioxide / Q000032:analysis; D014131:Trace Elements / Q000032:analysis
chemical_list: D000393:Air Pollutants; D003031:Coal; D009589:Nitrogen Oxides; D012722:Sewage; D014131:Trace Elements; D013458:Sulfur Dioxide
keywords: Co-combustion; Coal gangue; Gaseous pollutants emission; Sewage sludge; Trace element