Question
Discuss the sources and classification of solid waste based on hazardous potential, content and origin. Explain the mechanisms involved in biodegradation of xenobiotics.
Answer :
Word Count : 447
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Solid waste refers to any unwanted or discarded material generated from human activities, industrial processes, agricultural operations, and commercial establishments. The sources of solid waste are diverse and can be broadly categorized into municipal, industrial, agricultural, medical, and electronic sources. Municipal solid waste arises from households, markets, schools, and offices, typically comprising food residues, paper, plastics, metals, and glass. Industrial solid waste includes residues from manufacturing, chemical processing, and mining activities, often containing metals, solvents, and chemical by-products. Agricultural waste consists of crop residues, animal manure, and agrochemical containers, while medical or healthcare waste contains infectious materials, pharmaceuticals, and sharps. Electronic waste (e-waste) includes discarded computers, mobile phones, and other electronic devices, often rich in heavy metals and complex polymers. Classification of solid waste can be performed based on hazardous potential, content, and origin.
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