A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed

Lester-Card, Edward; Smith, Graham; Lloyd, Gareth; Tizaoui, Chedly

doi:10.1016/j.biteb.2023.101393

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A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed

Edward Lester-Card, Graham Smith, Gareth Lloyd, Chedly Tizaoui

Bioresource Technology Reports, Volume: 22, Start page: 101393

Swansea University Authors: Edward Lester-Card, Chedly Tizaoui

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DOI (Published version): 10.1016/j.biteb.2023.101393

Abstract

A new approach to treat oily steelworks wastewater using a natural coagulant is reported. Moringa oleifera crude extract (MOCE) was used, and its efficiency was compared to traditional alum and synthetic polymer (Nalco 9908) by optimising pH, dose and settling time. Jar tests showed that MOCE caused...

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Published in:	Bioresource Technology Reports
ISSN:	2589-014X
Published:	Elsevier BV 2023
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa62928
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first_indexed	2023-03-13T15:41:28Z
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spelling	v2 62928 2023-03-13 A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed 021c5bbf5c153fa16bcbbb8514e35869 Edward Lester-Card Edward Lester-Card true false 4b34a0286d3c0b0b081518fa6987031d 0000-0003-2159-7881 Chedly Tizaoui Chedly Tizaoui true false 2023-03-13 EEN A new approach to treat oily steelworks wastewater using a natural coagulant is reported. Moringa oleifera crude extract (MOCE) was used, and its efficiency was compared to traditional alum and synthetic polymer (Nalco 9908) by optimising pH, dose and settling time. Jar tests showed that MOCE caused rapid coagulation-flocculation kinetics and higher oil removal than alum and the polymer (95 %-MOCE, 71 %-alum and 48 %-polymer). Additionally, MOCE exhibited a wider effective pH range (pH 3–11) and did not affect the initial pH of the wastewater. However, MOCE produced higher sludge volume (35 mL/L) as compared to alum (25 mL/L), and the synthetic polymer only produced a sticky sludge stuck to the walls of the vessel. Tests on steelworks wastewater combining MOCE and the polymer produced a synergistic effect exhibiting reduced settling time and increased oil removal. Overall, this study shows that MO extracts have high potential in sustainable treatment of oily wastewaters. Journal Article Bioresource Technology Reports 22 101393 Elsevier BV 2589-014X Moringa oleifera, Natural coagulant, Oil-water emulsion, Steelworks wastewater, Green processes 1 6 2023 2023-06-01 10.1016/j.biteb.2023.101393 http://dx.doi.org/10.1016/j.biteb.2023.101393 In Press COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University SU Library paid the OA fee (TA Institutional Deal) M2A funding from the European Social Fund via the Welsh Government (c80816), Swansea University, Materials & Manufacturing Academy (M2A) and Tata Steel. 2023-06-12T13:49:14.3459268 2023-03-13T15:37:12.4172196 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Edward Lester-Card 1 Graham Smith 2 Gareth Lloyd 3 Chedly Tizaoui 0000-0003-2159-7881 4 62928__26895__fce0a66aeb7049a38123e9530d3e0c84.pdf 62928.pdf 2023-03-20T09:39:45.8172401 Output 2324929 application/pdf Version of Record true This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/) true eng http://creativecommons.org/licenses/by/4.0/
title	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed
spellingShingle	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed Edward Lester-Card Chedly Tizaoui
title_short	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed
title_full	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed
title_fullStr	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed
title_full_unstemmed	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed
title_sort	A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed
author_id_str_mv	021c5bbf5c153fa16bcbbb8514e35869 4b34a0286d3c0b0b081518fa6987031d
author_id_fullname_str_mv	021c5bbf5c153fa16bcbbb8514e35869_*_Edward Lester-Card 4b34a0286d3c0b0b081518fa6987031d_*_Chedly Tizaoui
author	Edward Lester-Card Chedly Tizaoui
author2	Edward Lester-Card Graham Smith Gareth Lloyd Chedly Tizaoui
format	Journal article
container_title	Bioresource Technology Reports
container_volume	22
container_start_page	101393
publishDate	2023
institution	Swansea University
issn	2589-014X
doi_str_mv	10.1016/j.biteb.2023.101393
publisher	Elsevier BV
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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department_str	School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
url	http://dx.doi.org/10.1016/j.biteb.2023.101393
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description	A new approach to treat oily steelworks wastewater using a natural coagulant is reported. Moringa oleifera crude extract (MOCE) was used, and its efficiency was compared to traditional alum and synthetic polymer (Nalco 9908) by optimising pH, dose and settling time. Jar tests showed that MOCE caused rapid coagulation-flocculation kinetics and higher oil removal than alum and the polymer (95 %-MOCE, 71 %-alum and 48 %-polymer). Additionally, MOCE exhibited a wider effective pH range (pH 3–11) and did not affect the initial pH of the wastewater. However, MOCE produced higher sludge volume (35 mL/L) as compared to alum (25 mL/L), and the synthetic polymer only produced a sticky sludge stuck to the walls of the vessel. Tests on steelworks wastewater combining MOCE and the polymer produced a synergistic effect exhibiting reduced settling time and increased oil removal. Overall, this study shows that MO extracts have high potential in sustainable treatment of oily wastewaters.
published_date	2023-06-01T13:49:13Z
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A green approach for the treatment of oily steelworks wastewater using natural coagulant of Moringa oleifera seed

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