Which of the following are true about Waste-to-Energy incineration?
A. It serves dual purpose of disposing municipal solid waste and producing energy
B. It produces fly ash
C. It produces bottom ash
D. It generates a high level toxic air pollutant-dioxin
E. It produces toxic metals such as Lead and Mercury
Choose the correct answer from the options given below:

Correct option is D

All of the statements are correct about Waste-to-Energy (WTE) incineration:
· A. It serves the dual purpose of disposing of municipal solid waste and producing energy: WTE plants reduce the volume of waste and generate electricity or heat through incineration.
· B. It produces fly ash: Fly ash is a by-product of incineration that is carried into the atmosphere with the flue gases and contains harmful substances.
· C. It produces bottom ash: Bottom ash remains at the bottom of the furnace after combustion and contains unburnt material and other residues.
· D. It generates a high level toxic air pollutant-dioxin: Dioxins are hazardous chemicals that are released during the burning of certain materials, particularly those containing chlorine.
· E. It produces toxic metals such as Lead and Mercury: During the incineration process, toxic metals such as Lead and Mercury are released, requiring careful emission control.
Information booster:
1. Fly ash and bottom ash are the main solid residues of WTE incineration and can contain heavy metals and toxic substances.
2. Dioxins and other air pollutants need to be controlled to prevent harmful effects on health and the environment.