Incineration is a waste treatment technology that involves the combustion of organic materials and/or substances.
Incinerators reduce the mass of the original waste by 80–85% and the volume (already ompressed somewhat in garbage trucks) by 95-96 %, depending upon composition and degree of recovery of materials such as metals from the ash for recycling.

Incineration has particularly strong benefits for thetreatment of certain waste types in niche areas such asclinical wastes and certain hazardous wastes wherepathogens and toxins can be destroyed by high temperatures.