incineration

n. burning to ashes

For other forms of waste plant that produce energy see waste-to-energy. Incineration is a waste treatment technology that involves the combustion of organic materials and/or substances. Incineration and other high temperature waste treatment systems are described as "thermal treatment". Incineration of waste materials converts the waste into ash, flue gases, particulates, and heat, which can in turn be used to generate electricity. The flue gases are cleaned for pollutants before it is dispersed in the atmosphere.
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Noun
1. the act of burning something completely; reducing it to ashes
(hypernym) burning, combustion
(hyponym) cremation
(derivation) incinerate

n. cremation, incineration

(n.)
The act of incinerating, or the state of being incinerated; cremation.