Cement kiln dust (CKD)-filter sand permeable reactive barrier for the removal of Cu(II) and Zn(II) from simulated acidic groundwater.

摘要: Abstract The hydraulic conductivity and breakthrough curves of copper zinc contaminants were measured in a set continuous column experiments for 99 days using cement kiln dust (CKD)-filter sand as the permeable reactive barrier. results these proved that weight ratios dust-filter (10:90 20:80) are adequate preventing loss reactivity and, turn, avoiding reduction groundwater flow. These reveal decrease conductivity, which can be attributed to an accumulation most quantity contaminant masses first sections bed. Breakthrough description temporal transport within barrier found more representative by Belter–Cussler–Hu Yan models based on coefficient determination Nash–Sutcliffe efficiency. longevity was simulated field scale, laboratory tests values verified effectively used future, material technology. signify is directly proportional its thickness inversely percentage CKD used.