The combustion characteristics of antibiotics bacterial residue

coal and both blends were investigated using thermogravimetry-differential scanning calorimetry(TG-DSC)

and the kinetic parameters of co-combustion was determined by Coats-Redfern method.The influence of bacterial residue blending ratio and particle size on combustion process was analyzed

and the possibility of co-combustion with coal and the advantages of superfine combustion were clarified.The results showed that co-combustion of antibiotic bacterial residue and coal mainly consisted of three stages

and adding bacterial residue can significantly improve the combustion characteristics of coal.With increasing bacterial residue blending ratio

the ignition temperature and burnout temperature decreased.Burnout characteristics index of superfine co-combustion and non-superfine co-combustion reached the maximum value at the bacterial residue blending ratio of 30%

which is 5.82×10-3 and 5.49×10-3

respectively.The activation energy of superfine co-combustion was lower than that of non-superfine co-combustion

indicating that the superfine combustion was beneficial to reduce the activation energy.There existed kinetic compensation effect on the activation energy E and the pre-exponential factor A of the superfine co-combustion and non-superfine co-combustion.