Geoscience Reference
In-Depth Information
7. Prognostic Model
The following three scenarios were considered for predicting the extent of
pollution in this area at the end of a 20 years period.
(1) The TDS load remains invariant during the entire period of prediction.
(2) The TDS load is increased to two folds of the present level (January
2001) during the entire period of prediction.
(3) The TDS load is reduced to half of the present level. The TDS load
is a result of both the euents discharged from the tanneries and the
leaching of the previous adsorbed solutes in the unsaturated zone. Thus
effectively the over all discharge from the tanneries is assumed to reduce
about 50% of the present level.
The predicted TDS concentration level (Scenario-I) for the year 2020 has
shown (Fig. 2) that the TDS concentration “
C
” progressively increases in
the area due to continuous addition of solids to the groundwater system.
Fig. 2.
Predicted TDS concentration (mg/l, January 2020).
