020: Хімічні науки і технології
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Browsing 020: Хімічні науки і технології by Subject "aqueous streams"
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Item Membrane-assisted processes to remove heavy metals from soil and water(2002) Atamanyuk, V.A series of bench-scale tests was carried out to evaluate two membrane-based processes. The first process was designed to remove heavy metals from soil. It incorporated slurry leaching coupled with membrane filtration. The soil slurry was continuously filtered through a semipermeable membrane. This resulted in a removal of leaching product from the system during its operation and helped maximize the driving force of leaching. The second process was intended to remove heavy metals from aqueous streams. It involved the binding of metals with lignosulfonates followed by ultrafiltration. Ultrafiltration membranes used in the study rejected metals ions bound to lignosulfonate molecules thus removing the metals from water. Both processes appeared to be feasible for the removal of heavy metals from respective contaminated media. Test results are discussed in this paper and recommendation for the future work provided.