title: Effect of organic matter and moisture on the calorific value of solid wastes: an update of the Tanner diagram.
abstract: Objective of the work was to experimentally determine the effect of the organic matter and moisture contents on the calorific value of organic solid wastes. Nine substrates (i.e. newsprint, biodried municipal solid wastes, municipal solid waste derived composts, wastewater sludges, and sea weed derived compost), with organic matter contents that ranged from 12% to 91% (dry weight) were used in the experiments. All substrates were dried and ground and deionized water was artificially added in order to achieve certain target moisture contents per substrate. The higher heating value (HHV) was, then, determined experimentally for each sample using a bomb calorimeter. Best reduced models were developed to describe the higher and lower heating values as a function of organic matter, ash and moisture contents. A triangular plot was constructed and the self-combustion area was determined and compared to that of the Tanner diagram. Response surfaces were drawn to visually assess the effect of organic matter and moisture contents on the calorific value of the wastes.
authors.affiliation: Laboratory of Solid and Hazardous Waste Management, Department of Environmental Engineering, Democritus University of Thrace, Xanthi 671 00, Greece. Electronic address: dkomilis@env.duth.gr.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Komilis
authors.affiliation: Laboratory of Solid and Hazardous Waste Management, Department of Environmental Engineering, Democritus University of Thrace, Xanthi 671 00, Greece.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Kissas
authors.affiliation: Laboratory of Solid and Hazardous Waste Management, Department of Environmental Engineering, Democritus University of Thrace, Xanthi 671 00, Greece.
authors.forename: Avraam
authors.initials: A
authors.lastname: Symeonidis
mesh_terms: D002151:Calorimetry; D009930:Organic Chemicals / Q000032:analysis; D010209:Paper; D012624:Seaweed / Q000737:chemistry*; D012722:Sewage / Q000737:chemistry*; D012987:Soil / Q000737:chemistry*; D014866:Waste Products / Q000032:analysis*; D014867:Water / Q000032:analysis
chemical_list: D009930:Organic Chemicals; D012722:Sewage; D012987:Soil; D014866:Waste Products; D014867:Water
keywords: Calorimetry; Combustion; Empirical modeling; Heating value; Incineration; Municipal solid wastes