Phosphate removal by Ion exchange in batch mode

Water with phosphate concentrations above 2 μM may adversely affect aquatic life and human health. In this study, the parameters affecting phosphate removal from aqueous solutions by ion exchange were investigated – contact time and temperature, initial pH, initial phosphate concentration and resin...

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Autores principales:	T. E. Bektaş, B. Kıvanç Uğurluoğlu, B. Tan
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	ion exchange isotherm kinetic model lewatit monoplus m 600 phosphate Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/391288fc8d744bbe83e1a51a4fdf93db
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spelling	oai:doaj.org-article:391288fc8d744bbe83e1a51a4fdf93db2021-11-05T21:17:12ZPhosphate removal by Ion exchange in batch mode1751-231X10.2166/wpt.2021.072https://doaj.org/article/391288fc8d744bbe83e1a51a4fdf93db2021-10-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/4/1343https://doaj.org/toc/1751-231XWater with phosphate concentrations above 2 μM may adversely affect aquatic life and human health. In this study, the parameters affecting phosphate removal from aqueous solutions by ion exchange were investigated – contact time and temperature, initial pH, initial phosphate concentration and resin dosage, and the presence of other ions. The best phosphate removal (99%) from 100 mg-P/L initial solution was observed at pH 10 and 25 °C after 3 hours of contact time. No negative phosphate removal results were obtained from phosphate solutions containing sulfate, nitrate and ammonium ions; i.e., resembling real wastewater. Desorption (with NaOH or NaCl) and recovery (with CaO) studies of phosphate sorbed by resin were also carried out, as well as thermodynamic investigations. The proportional desorbability of phosphate from the resin with NaCl was 85.6%. The recovery efficiency of phosphate was 79.4%. The sorption process was spontaneous and endothermic. The ion exchange mechanism was determined using different internal and external diffusion models. The mechanism controlling the removal of phosphate from aqueous solution is both internal and external diffusion. Application of the Langmuir and Freundlich isotherm models showed that the experimental results fit well with the Freundlich model. HIGHLIGHTS The danger of phosphate in terms of water pollution.; Selective and high phosphate removal using Lewatit MonoPlus M 600.; Discussion of the mechanisms of phosphate removal.; Desorption of phosphate with NaCl is easy.;T. E. BektaşB. Kıvanç UğurluoğluB. TanIWA Publishingarticleion exchangeisothermkinetic modellewatit monoplus m 600phosphateEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 4, Pp 1343-1354 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ion exchange isotherm kinetic model lewatit monoplus m 600 phosphate Environmental technology. Sanitary engineering TD1-1066
spellingShingle	ion exchange isotherm kinetic model lewatit monoplus m 600 phosphate Environmental technology. Sanitary engineering TD1-1066 T. E. Bektaş B. Kıvanç Uğurluoğlu B. Tan Phosphate removal by Ion exchange in batch mode
description	Water with phosphate concentrations above 2 μM may adversely affect aquatic life and human health. In this study, the parameters affecting phosphate removal from aqueous solutions by ion exchange were investigated – contact time and temperature, initial pH, initial phosphate concentration and resin dosage, and the presence of other ions. The best phosphate removal (99%) from 100 mg-P/L initial solution was observed at pH 10 and 25 °C after 3 hours of contact time. No negative phosphate removal results were obtained from phosphate solutions containing sulfate, nitrate and ammonium ions; i.e., resembling real wastewater. Desorption (with NaOH or NaCl) and recovery (with CaO) studies of phosphate sorbed by resin were also carried out, as well as thermodynamic investigations. The proportional desorbability of phosphate from the resin with NaCl was 85.6%. The recovery efficiency of phosphate was 79.4%. The sorption process was spontaneous and endothermic. The ion exchange mechanism was determined using different internal and external diffusion models. The mechanism controlling the removal of phosphate from aqueous solution is both internal and external diffusion. Application of the Langmuir and Freundlich isotherm models showed that the experimental results fit well with the Freundlich model. HIGHLIGHTS The danger of phosphate in terms of water pollution.; Selective and high phosphate removal using Lewatit MonoPlus M 600.; Discussion of the mechanisms of phosphate removal.; Desorption of phosphate with NaCl is easy.;
format	article
author	T. E. Bektaş B. Kıvanç Uğurluoğlu B. Tan
author_facet	T. E. Bektaş B. Kıvanç Uğurluoğlu B. Tan
author_sort	T. E. Bektaş
title	Phosphate removal by Ion exchange in batch mode
title_short	Phosphate removal by Ion exchange in batch mode
title_full	Phosphate removal by Ion exchange in batch mode
title_fullStr	Phosphate removal by Ion exchange in batch mode
title_full_unstemmed	Phosphate removal by Ion exchange in batch mode
title_sort	phosphate removal by ion exchange in batch mode
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/391288fc8d744bbe83e1a51a4fdf93db
work_keys_str_mv	AT tebektas phosphateremovalbyionexchangeinbatchmode AT bkıvancugurluoglu phosphateremovalbyionexchangeinbatchmode AT btan phosphateremovalbyionexchangeinbatchmode
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Phosphate removal by Ion exchange in batch mode

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