1 sources and classification of solid waste Pathological wastes: dead animals, human waste, and hospital waste constitute pathological wastes Industrial wastes: Chemicals, paints, metal ore processing, fly ash, sewage treatment sludge, etc are the examples of industrial wastes Agriculture wastes: Farm animal manure, crop residues. etc Jinan University1 sources and classification of solid waste ◼ Pathological wastes: dead animals, human waste, and hospital waste constitute pathological wastes . ◼ Industrial wastes: Chemicals, paints, metal ore processing, fly ash, sewage treatment sludge, etc. are the examples of industrial wastes. ◼ Agriculture wastes: Farm animal manure, crop residues, etc