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359537 
Journal Article 
Mathematical modeling of leachates from ash ponds of thermal power plants 
Gurdeep, S; Gupta, SK; Ritesh, K; Sunderarajan, M 
2007 
Yes 
Environmental Monitoring and Assessment
ISSN: 0167-6369
EISSN: 1573-2959 
130 
1-3 
173-185 
English 
17057962 
WOS:000246732600016 
The present study describes the development of empirical models for the prediction of various trace metals i.e., Mn, Cu, Fe, Zn and Pb found in the leachates generated from the ash ponds of various thermal power plants. The dispersion phenomenon of these trace metals followed first order reaction rate kinetics. The empirical models for individual trace metals derived from the lab scale models data correlate well with the real field data with regression coefficients varying from 0.93 to 0.98. The predicted concentrations of the trace metals varied within ±3% of the observed values in the leachates generated from the ash ponds of four thermal power plants with standard deviation varying from 0.001 to 0.032. The empirical models derived from the study can be applied for prediction of trace metals in leachates generated from similar thermal power plants. 
fly ash; trace metals; runoff; leaching; dispersion coefficients; empirical models; ground water pollution