Physical-chemical characterization, Emission Factor of PM2.5 and combustion gases from different cellulose industry wastes using a Controlled Combustion Chamber for Emissions

In conclusion, a complete physical and chemical characterization of the waste has been carried out, which has made it possible to optimize the combustion conditions, considered as reference the sawdust to fix the combustion parameter, due to the higher carbon content.). It is very important to note that the ash content for the sludge is the highest (47.5%), and as a consequence, their EFPM2.5, EFCO2 and EFCO are among the lowest, compared to the other residues. Finally, considering all results and the experimental conditions in the combustion process, the best waste generated by the Chilean cellulose industry for combustion is the sawdust, then wood bark, pulp and finally the sludge. This work is oriented in this first part to study the potential of different type of waste from the cellulose industry which will allow selecting the best waste mixtures to produce pellets and then submit these materials to the hydrothermal carbonization process (HTC) to produce new HTC pellets, with which we can even improve the characteristics of the pellets obtained from this type of waste, incorporating the cellulose industry in the concept of circular economy.