What is biodegradable and non-biodegradable waste?

(N/A) Industrial wastes are classified into two types:
$(i)$ Biodegradable waste: These are wastes that can be decomposed by microorganisms. They are typically generated by cotton mills,food processing units,paper mills,and textile factories.
$(ii)$ Non-biodegradable waste: These are wastes that cannot be decomposed by microorganisms. They are generated by thermal power plants (fly ash),integrated iron and steel plants (blast furnace slag and steel melting slag),and industries manufacturing aluminium,zinc,and copper (mud and tailings). Fertilizer industries produce gypsum. Hazardous wastes such as inflammables,composite explosives,or highly reactive substances are produced by industries dealing in metals,chemicals,drugs,pharmaceuticals,dyes,pesticides,and rubber goods.