Grafting of alginates on UF/NF ceramic membranes for wastewater treatment

Journal of Hazardous Materials
C P AthanasekouA A Sapalidis

Abstract

The mechanism of heavy metal ion removal in processes involving multi-layered tubular ultrafiltration and nanofiltration (UF/NF) membranes was investigated by conducting retention experiments in both flow-through and cross-flow modes. The prospect of the regeneration of the membranes through an acidic process was also examined and discussed. The UF/NF membranes were functionalised with alginates to develop hybrid inorganic/organic materials for continuous, single pass, wastewater treatment applications. The challenge laid in the induction of additional metal adsorption and improved regeneration capacity. This was accomplished by stabilizing alginates either into the pores or on the top-separating layer of the membrane. The preservation of efficient water fluxes at moderate trans-membrane pressures introduced an additional parameter that was pursued in parallel to the membrane modification process. The deposition and stabilization of alginates was carried out via physical (filtration/cross-linking) and chemical (grafting) procedures. The materials developed by means of the filtration process exhibited a 25-60% enhancement of their Cd(2+) binding capacity, depending on the amount of the filtered alginate solution. The grafting pr...Continue Reading

References

Dec 1, 1986·Analytical Biochemistry·K Ernst-Cabrera, M Wilchek
Feb 27, 1999·Journal of Chromatography. a·X ShaoM L Lee
Apr 18, 2000·Advances in Colloid and Interface Science·A E Yaroshchuk
Mar 21, 2002·Water Research·Karina Yew-hoong GinM A Aziz
Aug 2, 2006·Journal of Hazardous Materials·Mehmet Emin ArgunMustafa Karatas

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Citations

May 26, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Ye LiMin Chen

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