| Summary: | Groundwater utilization has been an active subject of study in the quest for more water. Advancements in groundwater technology have allowed countries with limited water resources to augment their supply to a self-sustainable level. An underground water banking technique known as Aquifer Storage and Recovery (ASR) has been developed. Artificial recharge of shallow, unconfined aquifers has been practiced for centuries, as a way of storing water in time of excess, for use in time of water scarcity, or to satisfy seasonal demand. In this study, large-scale ground water recharge projects using treated wastewater, reclaimed water, stormwater, and mains water in the world are reviewed. The successes of these projects may show the way for those countries still uninitiated to the technology.
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