The ongoing drought in the southwestern United States and the associated shortage of surface water has led to a sharp increase in groundwater use. Combined production and injection wells, through which water from different sources is injected for underground storage and later withdrawal during periods of low precipitation and peak consumption, are an essential element of sustainable groundwater management. The constantly changing water chemistry and high hydraulic stress place high demands on well construction and induce severe colmation and precipitation processes. As two years of measurements at a well partially backfilled with glass beads show, this filter medium can significantly extend the service life and maintain the specific performance of the well, resulting in significant savings in operating and maintenance costs.
Advantages in the construction and operation of high-performance wells through modern filter media
