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The distribution and retardation coefficients as a tool in selection of low-cost sorbent as a material for permeable reactive barrier – SEM- EDS analysis

A permeable reactive barrier (PRB) is considered as an innovative, green engineering approach for remediation of contaminated groundwater, using a passive, in situ technology with high potential of treatment of contaminant plume at in a cost-effective manner. Recently, scientific investigations are focused on discovering of materials for PRB which are abundant in nature or are waste material from another process. In this study, distribution and retardation coefficient were used as a tool to select various natural materials such as natural zeolites, clays and apatite as a material for PRB for removal of heavy metals lead, cadmium, zinc and cooper from contaminated groundwater. In addition, scanning electron microscopy (SEM) analysis and semi-quantitative energy dispersive spectrometry (EDS) of selected sorbent were analysed before and after saturation with the best removing metals.

distribution and retardation coefficients, low-cost sorbent, permeable reactive barrier, SEM-EDS analysis

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