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Title: INFILTRATION OF MIXTURES OF TREATED WASTEWATER AND SPRING WATER INTO COARSE ALLUVIAL SEDIMENTS: HYDRAULIC AND HYDROCHEMICAL OBSERVATIONS AT A TEST SITE FOR ARTIFICIAL RECHARGE IN THE WADI KAFREIN, JORDAN

Author: Moritz Zemann, Leif Wolf, Ali Sawarieh, Wasim Ali, Heinz Hötzl

Year: 2009

Publisher: European Water Resources Association (EWRA)

Description:

The paper describes hydraulical and hydrocemical observations during long term infiltrations tests at a basin for artificial recharge in the Wadi Kafrein. Due to water scarcity in the Lower Jordan Valley, artificial recharge is one possible solution for sustainable water management in the area. Therefore evaluation of potential sites, with respect to negative effects like soil clogging and water quality, is fundamental. The measurements conducted within this study showed frequent occurrence of pharmaceuticals as well as a diurnal cycle in the electric conductivity and consequently the influence of treated wastewater on the wadi baseflow. The infiltration rates, mainly controlled by a build up clogging layer, significantly exceeded those reported by other authors in a similar context. They remained high, even after several weeks of operation. At last, technical feasibility and environmental aspects are critically discussed.