Staff View: Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash

Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash

Magnetic coagulation is a promising approach for treating high phosphorous (high-P) wastewater by enhancing precipitation efficiency using magnetic particles. In this study, a cost-effective and environmentally friendly magnetic seed from coal fly ash (MS-CFA) was used as an alternative material for...

Full description

Saved in:

Bibliographic Details
Main Authors:	Sha Sha, Sha Sha, Rui, Xuan, Xu, Yushu, Gao, Yueshu, Lee, Chew Tin, Li, Chunjie
Format:	Article
Language:	English
Published:	Academic Press 2022
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/103199/1/LeeChewTin2022_EnhancedPrecipitationPerformance.pdf http://eprints.utm.my/103199/ http://dx.doi.org/10.1016/j.jenvman.2022.115168
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.utm.103199
record_format	eprints
spelling	my.utm.1031992023-10-20T02:36:07Z http://eprints.utm.my/103199/ Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash Sha Sha, Sha Sha Rui, Xuan Xu, Yushu Gao, Yueshu Lee, Chew Tin Li, Chunjie TP Chemical technology Magnetic coagulation is a promising approach for treating high phosphorous (high-P) wastewater by enhancing precipitation efficiency using magnetic particles. In this study, a cost-effective and environmentally friendly magnetic seed from coal fly ash (MS-CFA) was used as an alternative material for Fe3O4 magnetic seed (MS) coagulation. The potential effect of MS-CFA was explored to reduce the settling time and the dosage of coagulant aid of polyacrylamide (PAM) in treating high-phosphorous (high-P) simulated wastewater at 100 and 200 mg P/L. The physicochemical characteristics of MS-CFA were analysed through particle size distribution (20–100 μm), pore size distribution (14–30 nm), specific surface area (1.654 m2/g), X-ray diffraction (XRD), specific gravity (4.2), and magnetic induction intensity (49.8 emu/g). The characteristics met the requirements as magnetic coagulation material. MS-CFA was combined with polyaluminum chloride (PAC) and polyacrylamide (PAM) to improve phosphorous precipitation performance. The synergised magnetic coagulation effect using MS-CFA and PAM reduced the settling time of flocs to less than 1 min due to the high specific gravity. This represents a reduction of 90% of the settling time compared to the control using PAM alone (15 min) without MS-CFA. MS-CFA efficiently reduced PAM dosage by 83% and 87% for treating 100 and 200 mg P/L, respectively. The presence of PAM (1 mg/L for 100 mg P/L and 2 mg/L for 200 mg P/L) was imperative for binding the MS-CFA and flocs, hence increasing the particle size of the magnetic flocs. The characteristics of the magnetic flocs were analysed through microscopy, particle size distribution, zeta potential measurements, and magnetic induction intensity. The characteristics of the magnetic flocs confirmed that MS-CFA could be an alternative material for Fe3O4 as the magnetic seeds in the magnetic coagulation process for treating high-P wastewater. Academic Press 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/103199/1/LeeChewTin2022_EnhancedPrecipitationPerformance.pdf Sha Sha, Sha Sha and Rui, Xuan and Xu, Yushu and Gao, Yueshu and Lee, Chew Tin and Li, Chunjie (2022) Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash. Journal of Environmental Management, 315 (115168). pp. 1-10. ISSN 0301-4797 http://dx.doi.org/10.1016/j.jenvman.2022.115168 DOI: 10.1016/j.jenvman.2022.115168
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Sha Sha, Sha Sha Rui, Xuan Xu, Yushu Gao, Yueshu Lee, Chew Tin Li, Chunjie Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
description	Magnetic coagulation is a promising approach for treating high phosphorous (high-P) wastewater by enhancing precipitation efficiency using magnetic particles. In this study, a cost-effective and environmentally friendly magnetic seed from coal fly ash (MS-CFA) was used as an alternative material for Fe3O4 magnetic seed (MS) coagulation. The potential effect of MS-CFA was explored to reduce the settling time and the dosage of coagulant aid of polyacrylamide (PAM) in treating high-phosphorous (high-P) simulated wastewater at 100 and 200 mg P/L. The physicochemical characteristics of MS-CFA were analysed through particle size distribution (20–100 μm), pore size distribution (14–30 nm), specific surface area (1.654 m2/g), X-ray diffraction (XRD), specific gravity (4.2), and magnetic induction intensity (49.8 emu/g). The characteristics met the requirements as magnetic coagulation material. MS-CFA was combined with polyaluminum chloride (PAC) and polyacrylamide (PAM) to improve phosphorous precipitation performance. The synergised magnetic coagulation effect using MS-CFA and PAM reduced the settling time of flocs to less than 1 min due to the high specific gravity. This represents a reduction of 90% of the settling time compared to the control using PAM alone (15 min) without MS-CFA. MS-CFA efficiently reduced PAM dosage by 83% and 87% for treating 100 and 200 mg P/L, respectively. The presence of PAM (1 mg/L for 100 mg P/L and 2 mg/L for 200 mg P/L) was imperative for binding the MS-CFA and flocs, hence increasing the particle size of the magnetic flocs. The characteristics of the magnetic flocs were analysed through microscopy, particle size distribution, zeta potential measurements, and magnetic induction intensity. The characteristics of the magnetic flocs confirmed that MS-CFA could be an alternative material for Fe3O4 as the magnetic seeds in the magnetic coagulation process for treating high-P wastewater.
format	Article
author	Sha Sha, Sha Sha Rui, Xuan Xu, Yushu Gao, Yueshu Lee, Chew Tin Li, Chunjie
author_facet	Sha Sha, Sha Sha Rui, Xuan Xu, Yushu Gao, Yueshu Lee, Chew Tin Li, Chunjie
author_sort	Sha Sha, Sha Sha
title	Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
title_short	Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
title_full	Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
title_fullStr	Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
title_full_unstemmed	Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
title_sort	enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash
publisher	Academic Press
publishDate	2022
url	http://eprints.utm.my/103199/1/LeeChewTin2022_EnhancedPrecipitationPerformance.pdf http://eprints.utm.my/103199/ http://dx.doi.org/10.1016/j.jenvman.2022.115168
_version_	1781777660893986816
score	13.211869

Enhanced precipitation performance for treating high-phosphorus wastewater using novel magnetic seeds from coal fly ash

Similar Items