Effect of Metal Oxides on Combustion Characteristics of Excess Sludge

In this paper, it was studied that the effects of heating rate and four metal oxide on combustion characteristics excess sludge, such as CaO, Fe 2 O 3 , MgO Al kinetic parameters sludge were obtained based Coats-Redfern model. This result indicated ignition can be restricted with increase rate, but conducive to burnout, increasing about flammability, stability comprehensive characteristic index sludge. The addition could improve performance a certain extent, which most obvious at 10 20 °C/min, respectively. Furthermore, existence burnout represented by MgO. Under condition low presence beneficial According distribution kinetics parameters, showed an trend activation energy range 374.88-575.61 °C, also unfavorable fixed carbon. At same decreased adding 148.40-374.88 release volatiles reaction, while °C after promoted