• Manali M. Shah

Simultaneous increase in Indian population and industrialization has made conventional methods of water purification less effective. In order to treat the raw water for drinking purpose, process like coagulation and disinfectant plays important role in water treatment plant. Since ages, chlorine is used in Indian water treatment process, prior to treatment through the process of pre-chlorination helping in controlling biological growth and also as disinfectant in treatment plants through process called post-chlorination. However, chlorination produces by products called tri-halomethane and halo-acetic acid which proves to be carcinogenic in nature. Chemical coagulant in larger amount is required for the process of flocculation and coagulation during chlorination process. Other chemicals such as ozone, bromine, iodine and lime can be used as an oxidant and disinfectant instead of chlorine in water treatment plant. However, literature describes ozone as a better alternative worldwide. Replacement of chlorination process by ozonation process results in effective coagulation and flocculation with much reduction in the use of chemicals and also without formation of any by product, but post chlorination is must as it will left with some residue for disinfection which is not obtain in case of ozonation process. Ozone is more powerful and faster than chlorine in removing organic and inorganic matter, bacteria, virus, pesticides, odor, colour and taste from potable water treatment plant. Ozone is more than 50% strong oxidizer and acts over 3,000 times faster compared to chlorine. Due to lack of literature and awareness regarding the ozone applicability as disinfectant in one of the countries like India, present study aims to review the feasibility of applying ozone as an alternative of chlorine in Indian drinking water treatment plant.

Chlorine, tri-halomethanes, Ozone, Ozonation, Indian drinking water treatment plant

"A Review On: Ozone Applicability in Indian Drinking Water Treatment Plant", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.818-821, June 2019, Available :http://www.jetir.org/papers/JETIR1907S28.pdf

"A Review On: Ozone Applicability in Indian Drinking Water Treatment Plant", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp818-821, June 2019, Available at : http://www.jetir.org/papers/JETIR1907S28.pdf