Question

Which is not true about incineration of solid waste?

• A. There are drastic reductions in the volume and weight of wastes
• B. The ash can contain heavy metals and other toxic substances
• C. The incinerators are relatively cheap to build
• D. The incinerators can be built to generate electricity

Answer 1

Answer: (B)

The ash can contain heavy metals and other toxic substances

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration and other high-temperature waste treatment systems are described as "thermal treatment". Incineration of waste materials converts the waste into ash, flue gas, and heat. There are drastic reductions in the volume and weight of wastes, the incinerators are relatively cheap to build and the incinerators can be built to generate electricity. The ash produced does not contain heavy metals and other toxic substances.