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Efficient adsorption, removal and recovery of phosphate and nitrate from water by a novel lanthanum(III)-Dowex M4195 polymeric ligand exchanger

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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.

Graphical abstract: Efficient adsorption, removal and recovery of phosphate and nitrate from water by a novel lanthanum(iii)-Dowex M4195 polymeric ligand exchanger

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Publication details

The article was received on 16 Oct 2017, accepted on 09 Jan 2018 and first published on 10 Jan 2018


Article type: Paper
DOI: 10.1039/C7EW00421D
Citation: Environ. Sci.: Water Res. Technol., 2018, Advance Article
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    Efficient adsorption, removal and recovery of phosphate and nitrate from water by a novel lanthanum(III)-Dowex M4195 polymeric ligand exchanger

    H. Du, C. Y. K. Lung and T. Lau, Environ. Sci.: Water Res. Technol., 2018, Advance Article , DOI: 10.1039/C7EW00421D

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