Multiwell Technique of Saline and Nonsaline Groundwater Pumping from Coastal Aquifers

摘要

A technique has been developed to augment usable water by combining water drawn from the saline and the nonsaline aquifer domains in a geologic formation where the nonsaline aquifer domain is underlain or overlain by the saline aquifer domain. The developed technique can be used for well field development schemes for any kind of crops as well as for other uses. The technique has been applied in Kalia and Tularampur to attain the salinity concentrations of mixed water at an acceptable level. Initially, the design criteria (K_w) vary almost linearly, but gradually the variation in the increase in the acceptable level of salinity is exponential. Thus, the conjunctive use technique developed in the present study is useful to formulate well field development schemes for combined use of saline and fresh water domains. The performance of the developed technique would largely depend on the level of salinity in the aquifer system and temporal salinity variation.