Question

Define solid waste and its classification

Answer 1

Solid wastes may be defined as garbage from home resulting from commercial and industrial activities and waste substances created by agriculture, mining and water purification plants The waste products are classified on the basis of their nature and moisture content and how much thermal energy is obtained from them as follows:-

classification

1..Garbage:
It includes kitchen waste and vegetables, fruits and. meat waste. It contains 70 percent moisture and products heat as an amount of 6 x 106joule 1kg.

2..Rubbish:
It includes lime and mortar of broken buildings and some household un-useful materials such as paper, wood, rubber, and glass, ceramic and different kinds of metals. It contains 25 per cent moisture and produces heat at an amount of 15 x 155 joule/kg.

3..Pathological wastes:It includes the used gauge, bandage of hospital and nursing room used materialism surgery, excess stools, urine, bloods is pathological laboratory etc. It contains 85 percent moisture and produces heat at an amount of 25 x 10° joule/kg.

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