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Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water / C. Tizaoui, S. Ben Fredj, L. Monser, Chedly Tizaoui

Chemical Engineering Journal, Volume: 328, Pages: 98 - 105

Swansea University Author: Chedly Tizaoui

Abstract

The removal and recovery of highly potent endocrine disrupting chemicals (EDCs) estrone (E1), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) and the oxidation product 2-hydroxyestradiol (2OHE2) in water was achieved on Polyamide 6 (PA6) particles. Hydrogen bonding was the main mechanism driving t...

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Published in: Chemical Engineering Journal
ISSN: 13858947
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34587
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spelling 2020-11-23T14:14:28.1459894 v2 34587 2017-07-10 Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water 4b34a0286d3c0b0b081518fa6987031d 0000-0003-2159-7881 Chedly Tizaoui Chedly Tizaoui true false 2017-07-10 CHEG The removal and recovery of highly potent endocrine disrupting chemicals (EDCs) estrone (E1), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) and the oxidation product 2-hydroxyestradiol (2OHE2) in water was achieved on Polyamide 6 (PA6) particles. Hydrogen bonding was the main mechanism driving the adsorption of these EDCs on PA6 at pHs lower than the EDCs pKas (∼10.5) and their adsorption was not affected by the water matrix nor by solute-solute interaction. The adsorption isotherms were linear and the values of the linearity constants for E2 and EE2 were almost double those for E1 and 2OHE2. This was correlated to the number of intermolecular hydrogen bonds via –OH groups of the EDCs (H-bond donors) available for interaction with PA6’s surface via the amide groups (H-bond acceptors). The effect of pH on the adsorption of the EDCs on PA6 was significant only at pHs &#62; EDCs pKa (∼10.5). The breakthrough curves of the EDCs on PA6 particles in a fixed-bed column were successfully modelled using a linearised mass transfer model. This study shows that PA6 appears an effective sorbent for the removal as well as the enrichment and pre-concentration of EDCs in wastewater samples. Journal Article Chemical Engineering Journal 328 98 105 13858947 Endocrine disrupting compounds (EDCs); estrone (E1), 17β- estradiol (E2), 17α-ethinylestradiol (EE2); 2-hydroxyestradiol (2OHE2); Polyamide 6 (PA6); Secondary treated wastewater 31 12 2017 2017-12-31 10.1016/j.cej.2017.07.045 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2020-11-23T14:14:28.1459894 2017-07-10T10:53:57.6642178 College of Engineering Engineering C. Tizaoui 1 S. Ben Fredj 2 L. Monser 3 Chedly Tizaoui 0000-0003-2159-7881 4 0034587-10072017105648.pdf tizaoui2017.pdf 2017-07-10T10:56:48.9370000 Output 954716 application/pdf Accepted Manuscript true 2018-07-08T00:00:00.0000000 true eng
title Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
spellingShingle Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
Chedly, Tizaoui
title_short Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
title_full Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
title_fullStr Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
title_full_unstemmed Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
title_sort Polyamide-6 for the removal and recovery of the estrogenic endocrine disruptors estrone, 17β-estradiol, 17α-ethinylestradiol and the oxidation product 2-hydroxyestradiol in water
author_id_str_mv 4b34a0286d3c0b0b081518fa6987031d
author_id_fullname_str_mv 4b34a0286d3c0b0b081518fa6987031d_***_Chedly, Tizaoui
author Chedly, Tizaoui
author2 C. Tizaoui
S. Ben Fredj
L. Monser
Chedly Tizaoui
format Journal article
container_title Chemical Engineering Journal
container_volume 328
container_start_page 98
publishDate 2017
institution Swansea University
issn 13858947
doi_str_mv 10.1016/j.cej.2017.07.045
college_str College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
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description The removal and recovery of highly potent endocrine disrupting chemicals (EDCs) estrone (E1), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) and the oxidation product 2-hydroxyestradiol (2OHE2) in water was achieved on Polyamide 6 (PA6) particles. Hydrogen bonding was the main mechanism driving the adsorption of these EDCs on PA6 at pHs lower than the EDCs pKas (∼10.5) and their adsorption was not affected by the water matrix nor by solute-solute interaction. The adsorption isotherms were linear and the values of the linearity constants for E2 and EE2 were almost double those for E1 and 2OHE2. This was correlated to the number of intermolecular hydrogen bonds via –OH groups of the EDCs (H-bond donors) available for interaction with PA6’s surface via the amide groups (H-bond acceptors). The effect of pH on the adsorption of the EDCs on PA6 was significant only at pHs &#62; EDCs pKa (∼10.5). The breakthrough curves of the EDCs on PA6 particles in a fixed-bed column were successfully modelled using a linearised mass transfer model. This study shows that PA6 appears an effective sorbent for the removal as well as the enrichment and pre-concentration of EDCs in wastewater samples.
published_date 2017-12-31T03:53:05Z
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