Ecology, Environment and Conservation Paper

Vol.17, Issue 3, 2011; Page No.(549-552)

PHOTOCATALYTIC TREATMENT OF POLLUTED WATER CONTAINING METHYLENE BLUE USING ZINC OXIDE

Richa Tiwari, Mohan Kumar Sharma a and Suresh C. Ameta

Abstract

The sunlight mediated photocatalytic treatment of Methylene Blue (MB) dye was studied using Prepared ZnO. To analyze the treatment, parameters like pH, BOD, COD, DO, conductivity, TDS, alkalinity, hardness, calcium, magnesium, chloride, fluoride, sulfate and nitrate were considered. All these parameters were deeply studied for pond water, Methylene Blue solution (polluted water) and treated water which was obtained after photocatalytic treatment. After photocatlytic treatment a comparison of quality parameters of water, polluted water (contaminated by methylene blue) and treated water has been done. The results showed that treated water sample was much better in the quality than other samples. Photocatalysis was able to remove color from dye solutions. COD were also removed to an extent (50% in average). After photocatalytic treatment pH was also observed within the standard limits. Photocatalytic treatment was found effective on BOD as it increases the biodegradability of waste water. This treatment helped to reduce the hardness, alkalinity and nitrate content from the polluted water. Low ph and Increased BOD and conductivity also prove the treatment of polluted water (dye containing).

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