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An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study

The paper presents the results of a pilot-scale study investigating the efficiency of an ion exchange resin system in the removal of Ni, Hg, and Cr from flue gas desulphurisation wastewater, in the presence of competitive metals such as Ca, Mg, Al, Fe, and Mn. The core part of the ion exchange insta...

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Autores principales: Czupryński, Piotr, Płotka, Maciej, Glamowski, Piotr, Żukowski, Witold, Bajda, Tomasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8981258/
https://www.ncbi.nlm.nih.gov/pubmed/35425530
http://dx.doi.org/10.1039/d1ra09426b
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author Czupryński, Piotr
Płotka, Maciej
Glamowski, Piotr
Żukowski, Witold
Bajda, Tomasz
author_facet Czupryński, Piotr
Płotka, Maciej
Glamowski, Piotr
Żukowski, Witold
Bajda, Tomasz
author_sort Czupryński, Piotr
collection PubMed
description The paper presents the results of a pilot-scale study investigating the efficiency of an ion exchange resin system in the removal of Ni, Hg, and Cr from flue gas desulphurisation wastewater, in the presence of competitive metals such as Ca, Mg, Al, Fe, and Mn. The core part of the ion exchange installation consisted of two columns that were filled with ion exchange resin with iminodiacetic functional groups (Purolite S930) and one column filled with resin with isothiouronium functional groups (Purolite S920). The results showed that Ni, Hg, and Cr were almost completely removed from the wastewater with nearly 100% efficiency. Purolite S930 almost totally removed Ni, reducing its content from 89.3 ± 35 μg dm(−3) to below 0.1 μg dm(−3), while Purolite S920 reduced the remaining Cr content from 2.2 ± 0.6 μg dm(−3) and most of the Hg content, from 23.5 ± 6.6 μg dm(−3) to below 0.1 μg dm(−3). The competitive metals Ca, Mg, Mn, and Al showed low affinity to the studied ion exchange resins. The study also assessed speciation of ion forms and sorption mechanisms. Breakthrough curve analysis was also carried out, which revealed that the selectivity sequence of iminodiacetic resin was Ni > Cr > Hg > Fe > Al > Mn > Ca, Mg. Elution studies were performed on S930 resins that allowed the separation of two streams: one containing mostly Ni and Fe which can be subjected to Ni recovery and the other containing mostly Cr and Hg which can be separated.
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spelling pubmed-89812582022-04-13 An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study Czupryński, Piotr Płotka, Maciej Glamowski, Piotr Żukowski, Witold Bajda, Tomasz RSC Adv Chemistry The paper presents the results of a pilot-scale study investigating the efficiency of an ion exchange resin system in the removal of Ni, Hg, and Cr from flue gas desulphurisation wastewater, in the presence of competitive metals such as Ca, Mg, Al, Fe, and Mn. The core part of the ion exchange installation consisted of two columns that were filled with ion exchange resin with iminodiacetic functional groups (Purolite S930) and one column filled with resin with isothiouronium functional groups (Purolite S920). The results showed that Ni, Hg, and Cr were almost completely removed from the wastewater with nearly 100% efficiency. Purolite S930 almost totally removed Ni, reducing its content from 89.3 ± 35 μg dm(−3) to below 0.1 μg dm(−3), while Purolite S920 reduced the remaining Cr content from 2.2 ± 0.6 μg dm(−3) and most of the Hg content, from 23.5 ± 6.6 μg dm(−3) to below 0.1 μg dm(−3). The competitive metals Ca, Mg, Mn, and Al showed low affinity to the studied ion exchange resins. The study also assessed speciation of ion forms and sorption mechanisms. Breakthrough curve analysis was also carried out, which revealed that the selectivity sequence of iminodiacetic resin was Ni > Cr > Hg > Fe > Al > Mn > Ca, Mg. Elution studies were performed on S930 resins that allowed the separation of two streams: one containing mostly Ni and Fe which can be subjected to Ni recovery and the other containing mostly Cr and Hg which can be separated. The Royal Society of Chemistry 2022-02-10 /pmc/articles/PMC8981258/ /pubmed/35425530 http://dx.doi.org/10.1039/d1ra09426b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Czupryński, Piotr
Płotka, Maciej
Glamowski, Piotr
Żukowski, Witold
Bajda, Tomasz
An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study
title An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study
title_full An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study
title_fullStr An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study
title_full_unstemmed An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study
title_short An assessment of an ion exchange resin system for the removal and recovery of Ni, Hg, and Cr from wet flue gas desulphurization wastewater—a pilot study
title_sort assessment of an ion exchange resin system for the removal and recovery of ni, hg, and cr from wet flue gas desulphurization wastewater—a pilot study
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8981258/
https://www.ncbi.nlm.nih.gov/pubmed/35425530
http://dx.doi.org/10.1039/d1ra09426b
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