Solid wastes: wastes in solid or semi-solid forms, from domestic, commercial and industrial wastes. Examples: plastics , bottles, cans, papers, scrap iron, and other trash
Liquid Wastes: wastes in liquid form. Examples: domestic washings, chemicals, oils, wastewater from ponds, manufacturing industries and other sources.
Gas Wastes: wastes in gas form. Examples: Exhaust, Fume, Plume