Advantages:

1) It reduces the amount of waste volume, virtually to zero (because it converts them to gases)

2)It can be used to treat for hazardous and clinical (containing pathogenic bacteria) wastes

3)It can be used to generate energy, for boilers ,

Disadvantages

1)If the solid waste contains certain types of materials, incineration can generate hazardous gases, like furans  and dioxins, especially if waste has PVC(Polyvionyl chloride)

2)It can generate CO2 and odor sometimes.