The word waste refers to useless unwanted or discarded materials which are no longer considered of sufficient value and are thrown away by the processor.
The waste in the solids semisolids forms are called solids wasters or refuse solids wasters are all the waste arising from human and animal activities one of the man tasks of-of any municipal authority is the daily collection and disposal solids waste generated in the city.
The wastes generated hear to be taken away from the city and tread in a way, which does not cause environmental problems. Today this problem has assumed massive properties leading to serious groundwater contamination this groundwater contamination due to leachate has biological and metallic characteristics, causing a severe health hazard.
Solids waste
The solids waste are classified as follows :
- Rubbish
- Asher and construction wastes
- Demolition and construction waste
- Special Wastes
- Treatment plant wastes
- Hazardous Wastes
- Agriculture wastes