Chapter 11. Removal of Beryllium (Be2+) from Aqueous Solutions by Biopolymer-Enhanced Ultrafiltration


Rabia Temiz and Özgür Arar, PhD
Department of Chemistry, Ege University, Bornova, Izmir, Turkey

Part of the book: Advances in Chemistry Research. Volume 76

Chapter DOI:


Polymer-enhanced ultrafiltration (PEUF) is widely used to remove toxic metal ions due to its low operating cost and high removal rate. This study presents an efficient removal of beryllium (Be2+) in aqueous solutions using the polymer-enhanced ultrafiltration (PEUF) method. An environmentally friendly, water-soluble biopolymer, sodium lignosulfonate, was used for the experiments. The sorption of Be2+ depends on the pH of the initial solution. It was found that the Be2+ rejection rate increased with an increase in the pH of the solution. The ion exchange process between Be2+ and the sulphonate group of the polymer is so fast that the ion exchange reaction takes place within 15 minutes. The presence of interfering ions on the elimination rate of Be2+ was also tested. K+ , Ca2+, and Mg2+ did not affect the elimination rate of Be2+, but the presence of Na+ decreased the elimination rate of Be2+ .

Keywords: beryllium, biopolymer, ion-exchange, sodium lignosulfonate, ultrafiltration, water treatment


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