The effect of microwave hydrothermal treatment on the combustion behavior of sewage sludge

In this study, the thermal behavior of microwave hydrothermal char sewage sludge (MTC) was compared with dried (DS) and produced by electric treatment (ETC). The retention ratio volatile matter in MTC raised 51.2% HTS, while their dewaterability centrifugation were very close. kinetic parameters disposal process DS hydrochars determined from TG analysis. It found that activation energy combustion reduced 44.20 kJ/mol to 47.29 for ETC. For MTC, slightly decreased (43.22 kJ/mol). addition, highest weight loss rate (0.49%/min) also MTC. evolution gaseous nitrogen compounds obtained FTIR analyzer combined TG. results indicated devolatilization process, emission NH 3 , main precursor NOx combustion, postulated higher temperature conclusion, has a better performance close This study provided new choice pre-treatment method before combustion.