Safe drinking water is the primary need of time most of the people depends upon groundwater sources that have problems of hardness, calcium, Nitrate, Phosphate, fluoride, D.O., B.O.D., COD and heavy metals copper and Zinc and excess of MPN count, Different samples has collected in pre and post monsoon seasons during 2008-09. Different parameters of water has been analyzed and evaluated to the suitability of drinking water for human consumption and public hygiene scenario and health impacts. Some of the parameters are observed within the prescribed limits of 15 : 10500 while others are beyond the limits of WHO and ISI.

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The photocatalytic activity of graphene oxide (GO) and zinc oxide composite was explored. The composites were prepared in three different ratios: GO:ZnO (1:1), (1:2) and (2:1) by mechanochemical method (grinding) of the two components. Graphene oxide was synthesized by three different methods namely Hummer's, modified Hummer's and Tour's method. It was observed that composite of GO-ZnO (2:1) gave better results. The photocatalytic efficiency of the composite was evaluated using Victoria blue B as a model pollutant. It was found to be even better than zinc oxide. The reusability of the composite was also confirmed.

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