Waste management i.e., reduction of the waste and proper disposal, also recycling of material and energy.
Separate the waste as biodegradable and non-biodegradable waste:
Biodegradable waste: Generated by cotton mills, food processing units, paper mills, and textile factories.
Management: are deposited in landfills and are converted into compost.
Non – biodegradable water: Generated by thermal power plants which produce fly ash; integrated iron and steel plants which produce blast furnace slag and steel melting slag.
Management: Recycling and Toxic wastes are usually destroyed by controlled incineration
Green chemistry is a strategy to design chemical processes and products that reduces or eliminates the use and generation of hazardous substances. The chemical reactions should be such that the reactants are fully converted into useful environmental friendly products by using an environment friendly medium so that there would be no chemical pollutants introduced in the environment.
Green chemistry in day-to-day life:
Dry-Cleaning of clothes and laundry:
Replacement of halogenated solvent like (CCl4) by liquid C02 which is less harmful to groundwater.
Hydrogen peroxide (H202) is used for the purpose of bleaching clothes.
Bleaching of Paper:
In place of chlorine H202 is used for the bleaching of paper,
Synthesis of Chemicals:
Ethanal (CH3CHO) is prepared by step oxidation of ethene.
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