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What is waste? It is any plastics, paper, glass, metal, foods, chemicals, wood, oil, soil, effluents, liquids that have been discarded. How the waste gets generated comes from commercial, household and industrial sources. Sewage sludge is another source. Domestic and municipal waste is generated from the use of goods, manufacturing, sewage treatment, agriculture, the fabrication disposal of hazardous substances and construction. It is then found by urban waste disposal committees from skip bags, trailer bins, through the kerbside by waste collection trucks.