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Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane

Sonia Ben Fredj, Rochele Teribele Novakoski, Chedly Tizaoui Orcid Logo, Lotfi Monser

Ozone: Science & Engineering, Pages: 1 - 14

Swansea University Author: Chedly Tizaoui Orcid Logo

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DOI (Published version): 10.1080/01919512.2017.1322896

Abstract

Ozonation has been proven effective for the removal of endocrine disrupting chemicals (EDCs) in water. However, conventional ozonation processes are still limited by ozone low solubility and stability in water. These limitations may be overcome by mixing a prior ozone-loaded non-polar solvent with t...

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Published in: Ozone: Science & Engineering
ISSN: 0191-9512 1547-6545
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34544
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last_indexed 2018-02-09T05:24:47Z
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spelling 2017-09-05T15:31:07.3167928 v2 34544 2017-07-04 Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane 4b34a0286d3c0b0b081518fa6987031d 0000-0003-2159-7881 Chedly Tizaoui Chedly Tizaoui true false 2017-07-04 CHEG Ozonation has been proven effective for the removal of endocrine disrupting chemicals (EDCs) in water. However, conventional ozonation processes are still limited by ozone low solubility and stability in water. These limitations may be overcome by mixing a prior ozone-loaded non-polar solvent with the aqueous solution. This two-phase ozonation process combines Liquid-liquid extraction and Ozonation (LLO). Decamethylcyclopentasiloxane (D5) was chosen as the solvent to be charged with ozone for its non-toxicity, reusability and high ozone solubility. A concurrent LLO column reactor was designed for the simultaneous degradation of three endocrine disrupting chemicals (EDCs) in water: Estrone (E1), 17β-estradiol (E2) and 17α-estradiol (EE2). Results showed that 98% of EDCs were removed effectively from a solution initially concentrated at 1 mg L−1. The efficacy of the degradation depends essentially of the column feeding flowrate, the ozone dose and the operating pH. The generation of by-products during EDCs degradation by LLO was also investigated in this study. For a complete removal of both EDCs and by-products, the dose of ozone had to be doubled. Journal Article Ozone: Science & Engineering 1 14 0191-9512 1547-6545 Ozone, Decamethylcyclopen tasiloxane (D5), Endocrine Disrupting Chemicals (EDCs), Liquid/Liquid Extraction Ozone (LLO) 31 12 2017 2017-12-31 10.1080/01919512.2017.1322896 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2017-09-05T15:31:07.3167928 2017-07-04T09:16:13.7142402 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Sonia Ben Fredj 1 Rochele Teribele Novakoski 2 Chedly Tizaoui 0000-0003-2159-7881 3 Lotfi Monser 4 0034544-06072017093333.pdf fredj2017.pdf 2017-07-06T09:33:33.2270000 Output 1530940 application/pdf Accepted Manuscript true 2018-04-27T00:00:00.0000000 true eng
title Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
spellingShingle Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
Chedly Tizaoui
title_short Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
title_full Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
title_fullStr Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
title_full_unstemmed Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
title_sort Two-Phase Ozonation for the Removal of Estrone, 17β-Estradiol and 17α-Ethinylestradiol in Water Using Ozone-Loaded Decamethylcyclopentasiloxane
author_id_str_mv 4b34a0286d3c0b0b081518fa6987031d
author_id_fullname_str_mv 4b34a0286d3c0b0b081518fa6987031d_***_Chedly Tizaoui
author Chedly Tizaoui
author2 Sonia Ben Fredj
Rochele Teribele Novakoski
Chedly Tizaoui
Lotfi Monser
format Journal article
container_title Ozone: Science & Engineering
container_start_page 1
publishDate 2017
institution Swansea University
issn 0191-9512
1547-6545
doi_str_mv 10.1080/01919512.2017.1322896
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 - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description Ozonation has been proven effective for the removal of endocrine disrupting chemicals (EDCs) in water. However, conventional ozonation processes are still limited by ozone low solubility and stability in water. These limitations may be overcome by mixing a prior ozone-loaded non-polar solvent with the aqueous solution. This two-phase ozonation process combines Liquid-liquid extraction and Ozonation (LLO). Decamethylcyclopentasiloxane (D5) was chosen as the solvent to be charged with ozone for its non-toxicity, reusability and high ozone solubility. A concurrent LLO column reactor was designed for the simultaneous degradation of three endocrine disrupting chemicals (EDCs) in water: Estrone (E1), 17β-estradiol (E2) and 17α-estradiol (EE2). Results showed that 98% of EDCs were removed effectively from a solution initially concentrated at 1 mg L−1. The efficacy of the degradation depends essentially of the column feeding flowrate, the ozone dose and the operating pH. The generation of by-products during EDCs degradation by LLO was also investigated in this study. For a complete removal of both EDCs and by-products, the dose of ozone had to be doubled.
published_date 2017-12-31T03:42:52Z
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