Sorption characteristics of a landfill clay soil as a retardation barrier of some heavy metals

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• 作者：A.A. Zaki ; ^{aazaki7@yahoo.com} ; M.I. Ahmad ; K.M. Abd El-Rahman
• 关键词：Silty clay soil ; Landfill barriers ; Sorption mechanisms ; Kinetics ; Geohydrology
• 刊名：Applied Clay Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：135
• 期：Complete
• 页码：150-167
• 全文大小：2022 K
• 卷排序：135

文摘

Silty clay was found to be a good hydraulic and sorbent barrier for Zn2 +, Cd2 +, Pb2 +. Characteristics, saturated and unsaturated hydraulic properties of silty clay studied. Reaction kinetics, diffusion and distribution coefficients, retardation factors studied. Thermodynamic properties, activation energies and reaction conditions were studied. Sorption and desorption were dynamically utilizing breakthrough curves studied.