Permeable Reactive Barrier of Coated Sand by Iron Oxide for Treatment of Groundwater Contaminated with Cadmium and Copper Ions. alkej [Internet]. 2020 Jun. 1 [cited 2024 May 6];16(2):47-55. Available from: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/688