Removal performance and optimisation of pharmaceutical micropollutants from synthetic domestic wastewater by hybrid treatment.

Mojiri, A; Zhou, J; Vakili, M; Van Le, H

Removal performance and optimisation of pharmaceutical micropollutants from synthetic domestic wastewater by hybrid treatment.

Mojiri, A Zhou, J

Vakili, M Van Le, H

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Journal of contaminant hydrology, 2020, 235
Issue Date:: 2020-11

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Field	Value	Language
dc.contributor.author	Mojiri, A
dc.contributor.author	Zhou, J https://orcid.org/0000-0003-1393-1608
dc.contributor.author	Vakili, M
dc.contributor.author	Van Le, H
dc.date.accessioned	2021-03-18T05:42:13Z
dc.date.available	2020-10-23
dc.date.available	2021-03-18T05:42:13Z
dc.date.issued	2020-11
dc.identifier.citation	Journal of contaminant hydrology, 2020, 235
dc.identifier.issn	0169-7722
dc.identifier.issn	1873-6009
dc.identifier.uri	http://hdl.handle.net/10453/147339
dc.description.abstract	Occurrence of pharmaceutical micropollutants in aquatic environments has been one amongst serious environmental problems. During this study, two reactors, including a sequencing batch reactor (SBR) + powdered composite adsorbent (CA) (first reactor, SBR + CA) and a sequencing batch reactor (second reactor, SBR), were designed to treat synthetic wastewater. Powdered CA was added with a dosage of 4.8 g L<sup>-1</sup> to the first reactor. Tap water was contaminated with chemical oxygen demand (COD), ammonia and three pharmaceuticals, namely, atenolol (ATN), ciprofloxacin (CIP) and diazepam (DIA) to produce synthetic wastewater. The SBR + CA illustrated a better performance during synthetic municipal wastewater treatment. Up to 138.6 mg L<sup>-1</sup> (92.4%) of COD and up to 114.2 mg L<sup>-1</sup> (95.2%) of ammonia were removed by the first reactor. Moreover, optimisation of pharmaceuticals removal was conducted through response surface methodology (RSM) and artificial neural network (ANN). Based on the RSM, the best elimination of ATN (90.2%, 2.26 mg L<sup>-1</sup>), CIP (94.0%, 2.35 mg L<sup>-1</sup>) and DIA (95.5%, 2.39 mg L<sup>-1</sup>) was detected at the optimum initial concentration of MPs (2.51 mg L<sup>-1</sup>) and the contact time (15.8 h). In addition, ANN represented a high R<sup>2</sup> value (>0.99) and a rational mean squared error (<1.0) during the optimisation of micropollutants removal by both reactors. Moreover, adsorption isotherm study showed that the Freundlich isotherm could justify the abatement of micropollutants by using CA better than the Langmuir isotherm.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER
dc.relation.ispartof	Journal of contaminant hydrology
dc.relation.isbasedon	10.1016/j.jconhyd.2020.103736
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Adsorption
dc.subject.mesh	Bioreactors
dc.subject.mesh	Pharmaceutical Preparations
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Waste Water
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Pharmaceutical Preparations
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Bioreactors
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Water Purification
dc.subject.mesh	Adsorption
dc.subject.mesh	Waste Water
dc.subject.mesh	Adsorption
dc.subject.mesh	Bioreactors
dc.subject.mesh	Pharmaceutical Preparations
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Waste Water
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.title	Removal performance and optimisation of pharmaceutical micropollutants from synthetic domestic wastewater by hybrid treatment.
dc.type	Journal Article
utslib.citation.volume	235
utslib.location.activity	Netherlands
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-03-18T05:42:11Z
pubs.publication-status	Published
pubs.volume	235

Abstract:

Occurrence of pharmaceutical micropollutants in aquatic environments has been one amongst serious environmental problems. During this study, two reactors, including a sequencing batch reactor (SBR) + powdered composite adsorbent (CA) (first reactor, SBR + CA) and a sequencing batch reactor (second reactor, SBR), were designed to treat synthetic wastewater. Powdered CA was added with a dosage of 4.8 g L^-1 to the first reactor. Tap water was contaminated with chemical oxygen demand (COD), ammonia and three pharmaceuticals, namely, atenolol (ATN), ciprofloxacin (CIP) and diazepam (DIA) to produce synthetic wastewater. The SBR + CA illustrated a better performance during synthetic municipal wastewater treatment. Up to 138.6 mg L^-1 (92.4%) of COD and up to 114.2 mg L^-1 (95.2%) of ammonia were removed by the first reactor. Moreover, optimisation of pharmaceuticals removal was conducted through response surface methodology (RSM) and artificial neural network (ANN). Based on the RSM, the best elimination of ATN (90.2%, 2.26 mg L^-1), CIP (94.0%, 2.35 mg L^-1) and DIA (95.5%, 2.39 mg L^-1) was detected at the optimum initial concentration of MPs (2.51 mg L^-1) and the contact time (15.8 h). In addition, ANN represented a high R² value (>0.99) and a rational mean squared error (<1.0) during the optimisation of micropollutants removal by both reactors. Moreover, adsorption isotherm study showed that the Freundlich isotherm could justify the abatement of micropollutants by using CA better than the Langmuir isotherm.

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http://hdl.handle.net/10453/147339