The DTG (Differential Thermogravimetric) and DSC (Differential
Scanning Calorimetry) results obtained from the temperature
programmed combustions of the samples are shown in Figs. 1 and
2, respectively, for the different heating rates used (b ¼ 0.1, 0.2, 0.4
and 0.5 K/s). The results corresponding to the coal (C), to the primary
pulp mill sludge (L1), to the secondary pulp mill sludge (L2)
and to their respective blends (CL1 and CL2) are represented
together.