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Paper Details

Removal of hazardous ions from water by photocatalytic desalination method

Shobha Rastogi1, Manisha Sindal2 and Ajay Sharma2

Journal Title:Journal of Chemical, Biological and physical sciences
Abstract


Water is the most essential component of life. Though on a global scale, there is abundance of water but the main problem is the availability of water in the right place and in the right form. Rajasthan is declared as a desert state because it faces scanty rainfall. The population of Rajasthan is wholly depending on ground water resources and 50% of water resources are unpotable. In urban and rural areas of Rajasthan that have access to water, a sizable population has difficulty to use drinking water with TDS (Total Dissolved Salts) level more than 500 mg / Lt. which is allowed limit in accordance with BIS (Bureau of Indian Standards). Solar desalination process to obtain potable water is competitive with other means of obtaining potable water. Much work has been done in the field of collection of solar energy and its use in desalination process. In the present work, photocatalytic solar desalination process has been developed to obtain good quality of water. For this some metal catalyst were used to increase efficiency of the process. Copper Sulphide, Lead Sulphide, Antimony sulphide etc. are proved to be the best one. The work is restricted to ground water and samples have been collected from different areas of Sirohi district of Rajasthan. The water samples were analyzed for different. water parameters like pH, Salinity, TDS, Conductance, Total hardness etc. and datas were compared with standards given by APHA 1998 (American Public Health Association). After solar desalination process again water samples were analyzed for the same parameters. The quantity of water so produced was quite less and the rate was also very slow. Therefore, to enhance the rate of water production and to improve quality of desalinate water some photocatalysts have been used and found that TDS value of raw water is quite lower down by using these metal sulphides as photocatalysts.

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