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Transport of pollutants from nearby catchments to the Nagarjuna Sagar Dam

Published online by Cambridge University Press:  09 January 2012

J. Barescut ,
D. Lariviere ,
T. Stocki ,
S.K. Jha ,
G.P. Verma ,
S.S. Gothankar  and
V.D. Puranik
S.K. Jha*
Affiliation:
Environmental Assessment Division, BARC, Trombay, Mumbai - 400085
G.P. Verma
Affiliation:
Environmental Assessment Division, BARC, Trombay, Mumbai - 400085
S.S. Gothankar
Affiliation:
Radiation Safety Systems Division, BARC, Trombay, Mumbai - 400085
V.D. Puranik
Affiliation:
Radiation Safety Systems Division, BARC, Trombay, Mumbai - 400085
*
e-mail: skjha@barc.gov.in
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Abstract

The understanding of the fate of the various pollutants and its mobility in the catchments of Nagarjun Sagar dam built on the Krishna river is of utmost important .As the Pedaguttu and Lambarpur catchments area has a proposed Uranium mining sites and Nagarjuna Sagar dam is the third largest man made dam which is the ultimate destination of all the rivulets in the Pedaguttu catchments. The concept of the distribution coefficient is invoked to understand the residence time of radionuclide on its nature. Expressions are derived to estimate the value of soil erosion constant using naturally occurring radionuclide. Based on 210Pb profile in the sediment core, the sedimentary load of 0.24 gm m−2y−1 was observed in the Pedaguttu and Lambarpur side of the Dam. The retention time and the transport coefficient of the pollutant were further obtained by using the appropriate modeling equation and was found 3776 and 2.7 × 10−5 respectively. The comparative exercise of the retention time and transport coefficient was done with the other studied catchments of the world for the further validation of the result.

Type
Research Article
Information
Radioprotection , Volume 46 , Issue 6: ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance , 2011 , pp. S323 - S329
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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