Efficient adsorption, removal and recovery of phosphate and nitrate from water by a novel lanthanum(iii)-Dowex M4195 polymeric ligand exchanger. Issue 3 (24th January 2018)

• Record Type: Journal Article
• Authors: Du, Hongxia; Lung, Christie Y. K.; Lau, Tai-Chu
• Is Part Of: Environmental science. Volume 4:Issue 3(2018)
• Page Start: 421
• Page End: 427
• Publication Date: 2018-01-24
• Subjects: Water-supply -- Periodicals; Water security -- Periodicals; Water resources development -- Periodicals; Water chemistry -- Periodicals; 553.705
• DOI: 10.1039/c7ew00421d
• Languages: English
• ISSNs: 2053-1400

Abstract

Abstract : A novel polymeric ligand exchanger (PLE) can selectively remove phosphate and nitrate from water down to <0.1 ppm. Abstract : A new polymeric ligand exchanger (PLE) has been designed to remove phosphate and nitrate from water under various conditions. This PLE was prepared by passing a LaCl3 solution through a column of Dowex M4195 cation-exchange resin. Uptake of phosphate and nitrate from water by this La(iii )-Dowex resin was investigated in the column mode. The La(iii )-Dowex resin was able to remove phosphate and nitrate efficiently from water down to <0.1 ppm with little interference from other anions such as chloride and sulphate. The column could be readily regenerated by eluting with 0.1 M hydrochloric acid.