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Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration

D.S Han, M Orillano, Y Duan, B Batchelor, H Park, A. Abdel-Wahab, Nidal Hilal

Ultrafiltration: Methods, Applications and Insights, Pages: 129 - 152

Swansea University Author: Nidal Hilal

Abstract

In this study, crossflow ultrafiltration (CF/UF) was applied to ensure continuous removal of Hg-contacted FeS solids from suspension. The key parameters that are used to evaluate overall performance of the CF/UF treatment system are water flux (permeability or rejection), and variation of water qual...

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Published in: Ultrafiltration: Methods, Applications and Insights
ISBN: 978-153610624-4 978-153610599-5
Published: USA Nova Science Publishers, Inc. 2017
URI: https://cronfa.swan.ac.uk/Record/cronfa37737
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spelling 2017-12-27T06:13:18.9957294 v2 37737 2017-12-27 Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2017-12-27 FGSEN In this study, crossflow ultrafiltration (CF/UF) was applied to ensure continuous removal of Hg-contacted FeS solids from suspension. The key parameters that are used to evaluate overall performance of the CF/UF treatment system are water flux (permeability or rejection), and variation of water quality (pH, Hg, Fe) in the permeate water over time, as affected by concentrations of anions (Cl−, NO3 −, SO4 2−). Accordingly, the same water quality parameters were used to evaluate the CF/UF system during desorption tests with thiosulfate solutions. Almost no release of Hg from solids during filtration of Hg-contacted FeS was observed, regardless of the presence of anions. Furthermore, desorption tests with thiosulfate solution showed that the solids retained on the UF membrane were shown to be stable. The surfaces of the solids deposited on the membrane were characterized by SEM/EDS and ATR/FT-IR. The SEM/EDS analysis identified active sites for Hg removal on the membrane surface and ATR/FT-IR analysis exhibited evidence of entire coverage of Hgcontacted FeS on the membrane surface. However, a gradual decrease of sorption capacity for Hg removal by the solids retained on the membrane was observed as additional feed water was applied Book chapter Ultrafiltration: Methods, Applications and Insights 129 152 Nova Science Publishers, Inc. USA 978-153610624-4 978-153610599-5 1 1 2017 2017-01-01 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2017-12-27T06:13:18.9957294 2017-12-27T06:10:35.5808788 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised D.S Han 1 M Orillano 2 Y Duan 3 B Batchelor 4 H Park 5 A. Abdel-Wahab 6 Nidal Hilal 7
title Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
spellingShingle Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
Nidal Hilal
title_short Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
title_full Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
title_fullStr Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
title_full_unstemmed Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
title_sort Effect of anions on removal of mercury(II) using fes-supported crossflow ultrafiltration
author_id_str_mv 3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Nidal Hilal
author2 D.S Han
M Orillano
Y Duan
B Batchelor
H Park
A. Abdel-Wahab
Nidal Hilal
format Book chapter
container_title Ultrafiltration: Methods, Applications and Insights
container_start_page 129
publishDate 2017
institution Swansea University
isbn 978-153610624-4
978-153610599-5
publisher Nova Science Publishers, Inc.
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description In this study, crossflow ultrafiltration (CF/UF) was applied to ensure continuous removal of Hg-contacted FeS solids from suspension. The key parameters that are used to evaluate overall performance of the CF/UF treatment system are water flux (permeability or rejection), and variation of water quality (pH, Hg, Fe) in the permeate water over time, as affected by concentrations of anions (Cl−, NO3 −, SO4 2−). Accordingly, the same water quality parameters were used to evaluate the CF/UF system during desorption tests with thiosulfate solutions. Almost no release of Hg from solids during filtration of Hg-contacted FeS was observed, regardless of the presence of anions. Furthermore, desorption tests with thiosulfate solution showed that the solids retained on the UF membrane were shown to be stable. The surfaces of the solids deposited on the membrane were characterized by SEM/EDS and ATR/FT-IR. The SEM/EDS analysis identified active sites for Hg removal on the membrane surface and ATR/FT-IR analysis exhibited evidence of entire coverage of Hgcontacted FeS on the membrane surface. However, a gradual decrease of sorption capacity for Hg removal by the solids retained on the membrane was observed as additional feed water was applied
published_date 2017-01-01T03:47:33Z
_version_ 1763752284085288960
score 11.037319

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