Effectiveness of artificial recharge structures in enhancing groundwater quality

Artificial recharge is a technique used to recharge the groundwater resources which exploited by pumping for irrigation and drinking purpose. An artificial recharge structures are practiced in the hard rock regions of Tamil Nadu for groundwater restoration and also to enhance the groundwater quality. In the present study, an existing recharge structures in Thondamuthur block of was selected to assess the impact of artificial recharge structures in enhancing the groundwater quality. The considerable improvement in groundwater quality was observed due to the effect of artificial recharge structures. The maximum water quality improvement was observed near the artificial recharge structures at downstream side. The standard of irrigation water was improved during post monsoon period. Hence, it is recommended to recharge the groundwater artificially by constructing artificial recharge structures wherever feasible in the study area.