Rapid removal of ammonium from domestic wastewater using polymer hydrogels

Abstract To date, technologies to recover ammonium from domestic wastewater from the mainstream have not found widespread application. This is largely due to the low ammonium concentrations in these wastewater streams. This paper reports on the use of polymer hydrogels for rapid sorption of ammonium...

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Autores principales:	Heidy Cruz, Paul Luckman, Thomas Seviour, Willy Verstraete, Bronwyn Laycock, Ilje Pikaar
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b4de5bf76ddb4a5c882680256978fc10
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spelling	oai:doaj.org-article:b4de5bf76ddb4a5c882680256978fc102021-12-02T15:08:56ZRapid removal of ammonium from domestic wastewater using polymer hydrogels10.1038/s41598-018-21204-42045-2322https://doaj.org/article/b4de5bf76ddb4a5c882680256978fc102018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-21204-4https://doaj.org/toc/2045-2322Abstract To date, technologies to recover ammonium from domestic wastewater from the mainstream have not found widespread application. This is largely due to the low ammonium concentrations in these wastewater streams. This paper reports on the use of polymer hydrogels for rapid sorption of ammonium from domestic wastewater coupled with efficient regeneration by mild acid washing. The sorption capacity of the hydrogel was 8.8–32.2 mg NH4–N/g, which corresponds to removal efficiencies ranging from 68% to 80% NH4–N, increasing proportionally with the initial ammonium concentration. It was, however, unaffected by changes in pH, as the sorption capacity remained constant from pH 5.0–8.0. Importantly, effective regeneration of the hydrogels under mildly acidic conditions (i.e. pH 4.0) was demonstrated with minimal loss in sorption performance following multiple sorption/desorption cycles. Overall, this study highlights the potential of low-cost polymer hydrogels for achieving mainstream ammonium recovery from domestic wastewater.Heidy CruzPaul LuckmanThomas SeviourWilly VerstraeteBronwyn LaycockIlje PikaarNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-6 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Heidy Cruz Paul Luckman Thomas Seviour Willy Verstraete Bronwyn Laycock Ilje Pikaar Rapid removal of ammonium from domestic wastewater using polymer hydrogels
description	Abstract To date, technologies to recover ammonium from domestic wastewater from the mainstream have not found widespread application. This is largely due to the low ammonium concentrations in these wastewater streams. This paper reports on the use of polymer hydrogels for rapid sorption of ammonium from domestic wastewater coupled with efficient regeneration by mild acid washing. The sorption capacity of the hydrogel was 8.8–32.2 mg NH4–N/g, which corresponds to removal efficiencies ranging from 68% to 80% NH4–N, increasing proportionally with the initial ammonium concentration. It was, however, unaffected by changes in pH, as the sorption capacity remained constant from pH 5.0–8.0. Importantly, effective regeneration of the hydrogels under mildly acidic conditions (i.e. pH 4.0) was demonstrated with minimal loss in sorption performance following multiple sorption/desorption cycles. Overall, this study highlights the potential of low-cost polymer hydrogels for achieving mainstream ammonium recovery from domestic wastewater.
format	article
author	Heidy Cruz Paul Luckman Thomas Seviour Willy Verstraete Bronwyn Laycock Ilje Pikaar
author_facet	Heidy Cruz Paul Luckman Thomas Seviour Willy Verstraete Bronwyn Laycock Ilje Pikaar
author_sort	Heidy Cruz
title	Rapid removal of ammonium from domestic wastewater using polymer hydrogels
title_short	Rapid removal of ammonium from domestic wastewater using polymer hydrogels
title_full	Rapid removal of ammonium from domestic wastewater using polymer hydrogels
title_fullStr	Rapid removal of ammonium from domestic wastewater using polymer hydrogels
title_full_unstemmed	Rapid removal of ammonium from domestic wastewater using polymer hydrogels
title_sort	rapid removal of ammonium from domestic wastewater using polymer hydrogels
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/b4de5bf76ddb4a5c882680256978fc10
work_keys_str_mv	AT heidycruz rapidremovalofammoniumfromdomesticwastewaterusingpolymerhydrogels AT paulluckman rapidremovalofammoniumfromdomesticwastewaterusingpolymerhydrogels AT thomasseviour rapidremovalofammoniumfromdomesticwastewaterusingpolymerhydrogels AT willyverstraete rapidremovalofammoniumfromdomesticwastewaterusingpolymerhydrogels AT bronwynlaycock rapidremovalofammoniumfromdomesticwastewaterusingpolymerhydrogels AT iljepikaar rapidremovalofammoniumfromdomesticwastewaterusingpolymerhydrogels
_version_	1718387960167006208

Rapid removal of ammonium from domestic wastewater using polymer hydrogels

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