The study of bio technology which has a major role in checking pollution

madugundurukmini By madugundurukmini, 13th Aug 2013 | Follow this author | RSS Feed | Short URL http://nut.bz/2dxiiaq-/
Posted in Wikinut>Guides>Science>Chemistry

We are sure our scientists particularly our chemists will be successful in developing new techniques as well as chemicals to minimise pollution.

Dry cleaning of clothes and laundry

earlier, trichloroethane was used as a solvent for dry cleaning. This compound is suspected to be carcinogenic and contaminated the ground water. It use has been replaced by liquefied carbon dioxide along with a suitable detergent which is less harmful. Similarly bleached of clothes is being used which gives better results and is not harmful. Moreover, it saves a lot of water.

Bleaching of paper

Earlier, chlorine gas was used for bleaching of paper which is highly toxic chemical. Its use has been replaced by hydrogen peroxide along with a suitable catalyst.
In synthesis of chemicals: Acetaldehyde is now -a-days being prepared on large scale using environment friendly chemicals and conditions i.e. By one step oxidation of ethane in the presence of ionic catalyst in aqueous medium.
CH2 = CH2 + O2 ? CH3CHO

The yield is about ninety percent

Conclusion- We are sure our scientists particularly our chemists will be successful in developing new techniques as well as chemicals to minimise pollution. All countries are giving importance to the study of bio technology which has a major role in checking pollution. It is the duty of the every individual to keep the environment free from pollution.

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