Shafique  Ahmad, Narayan  Mahto, 
    Time History of Concentration Levels for Maximum Disposal of Coal Waste under Acceptable Limits in Damodar River: A Mathematical Model,
    Journal of Engineering and Applied Sciences,
    Volume 7,Issue 2,
    2012,
    Pages 223-226,
    ISSN 1816-949x,
    jeasci.2012.223.226,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2012.223.226)
    Abstract: Damodar river basin is repository of 40% of India coal reserve. Exploitation of coal and related
industries in the area has exerted a great impact on the water pollution. In this study, an attempt has been made
to develop a mathematical model to obtain time histories of concentration levels under different dumping
policies so as to select the policy which disposes maximum waste without exceeding acceptable limits. An
analytical solution is obtained to study the concentration levels for different time histories. The model can be
useful in guiding engineering and management decision concerned with the efficient utilization of Damodar river
water and protect their quality.
    Keywords: Damodar river;water pollution;coal mining activities;time history;concentration level;India