Abstrakt

Application of newly synthetic HP- Cr-III-containing mica- like structure meso-porous clay for stepwise remediation of industrial water-drains from some toxic heavy metals

Khaled M.Elsabawy, Waheed F.El-Hawary, A.El.Maghraby

Mixed solid state / solution routes were applied to synthesize newfamily of free-fluoride synthetic clay for water remediation applications. The sample of synthetic free fluoride –Na-4-mica were having the general formula (Na4Mg6M4Si4O22.nH2O) where M = Cr3+. Structural and micro-structural properties were monitoring by using both of XRD and SEM evaluating, grain size of the mica bulk was found to be in between 2.27- 3.33 ìm which are lower than those reported in literatures. Synthetic clay was tested and applied three time (stepwise) as a cations selective remediator material for some industrial polluted water drains containing traces fromsome selected heavy metals cations. Analytical investigations were made by using ICPMs spectroscopy. Investigations proved that synthetic Cr(III)-type clay has medium-to-strong efficiency as cation selective clay towards heavy metals tested.