Issue 1, 2016
From the journal:

Environmental Science: Water Research & Technology

Nitrate removal from water using a nanopaper ion-exchanger

Andreas Mautner,*ab   Henry A. Maples,a   Houssine Sehaqui,c   Tanja Zimmermann,c   Uxua Perez de Larraya,d   Aji P. Mathew,e   Chi Yan Lai,f   Kang Lif  and  Alexander Bismarck*ab  

* Corresponding authors

a Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, University of Vienna, Währingerstr. 42, A-1090 Vienna, Austria
E-mail: andreas.mautner@univie.ac.at, alexander.bismarck@univie.ac.at

b Polymer & Composite Engineering (PaCE) Group, Dept. of Chemical Engineering, Imperial College London, South Kensington Campus, London, UK

c Applied Wood Materials Laboratory, Empa – Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland

d Cemitec, Polígono Mocholí, Plaza Cein 4, E-31110 Noain, Navarra, Spain

e Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, S-97187 Luleå, Sweden

f Dept. of Chemical Engineering, Imperial College London, South Kensington Campus, London, UK

Abstract

Nitrates seriously affect drinking water quality. We herein present a process for the efficient removal of nitrates from water using a nanopaper ion-exchanger, which can be operated in flow-through conditions. The nanopaper ion-exchanger was produced from nanofibrillated cellulose obtained from fibre sludge, a paper-production waste stream, using a simple paper-making process. The cellulose nanofibrils were modified with quaternary trimethylammonium groups. The performance of these cationic nanopaper ion-exchangers was assessed with respect to their permeance and nitrate adsorption. Nitrates could be successfully captured onto the cationic nanopaper and thus rejected from contaminated water during dynamic filtration experiments. The ion-exchange nanopaper had adsorption capacities in the range of commercial available adsorbers but with the advantage of reduced contact time.

Graphical abstract: Nitrate removal from water using a nanopaper ion-exchanger

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Article information

DOI
https://doi.org/10.1039/C5EW00139K
Article type
Paper
Submitted
26 May 2015
Accepted
17 Aug 2015
First published
17 Aug 2015

Environ. Sci.: Water Res. Technol., 2016,2, 117-124

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Nitrate removal from water using a nanopaper ion-exchanger

A. Mautner, H. A. Maples, H. Sehaqui, T. Zimmermann, U. Perez de Larraya, A. P. Mathew, C. Y. Lai, K. Li and A. Bismarck, Environ. Sci.: Water Res. Technol., 2016, 2, 117 DOI: 10.1039/C5EW00139K

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