Solid Waste Disposal
Solid Waste Disposal, disposal of normally solid or semisolid materials, resulting from human and animal activities, that are useless, unwanted, or hazardous. Solid wastes typically may be classified as follows:
- Garbage - decomposable wastes from food
- Rubbish - nondecomposable wastes, either combustible (such as paper, wood, and cloth) or noncombustible (such as metal, glass, and ceramics)
- Ashes - residues of the combustion of solid fuels
- Large wastes - demolition and construction debris and trees
- Dead animals
- Sewage-treatment solids - material retained on sewage-treatment screens, settled solids, and biomass sludge
- Industrial wastes - such materials as chemicals, paints, and sand
- Mining wastes - slag heaps and coal refuse piles
- Agricultural wastes - farm animal manure and crop residues.
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