Water wells: Sustainable usage and rehabilitation technology

Abstract

Uzbekistan is one of the most water resources limited regions and it needs better sustainable water management. The global ecological problem as the Aral Sea disaster makes it more urgent not only for one nation but also for the all CentralAsian region. Region needs to be developed by following SDG and the same time to save water resources. The balance of the ground water resources in the region is environmentally safe and enough by quantity and also hydrologically. It is due to the use of huge number of the water wells as artesian and also drainage wells. At the UZWATER National center of SamSACU the studies on the clogging deposits as the chemically and mineralogically multicomponent complex composition particles and their removal/declogging rehabilitation of the water wells are carried out. A rehabilitation technology effective for the region with dry and hot climate and environmentally safe water wells by using complex reagents such as oxyethylidenediphosphonic acid and nitrilotrimethylphosphonic acid in combination with carbon dioxide will help to remove of the clogging deposits and a stable filtration process and work of the water wells.