Removal of Pharmaceuticals and Illicit Drugs from Wastewater Due to Ferric Dosing in Sewers.

Kulandaivelu, J; Gao, J; Song, Y; Shrestha, S; Li, X; Li, J; Doederer, K; Keller, J; Yuan, Z; Mueller, JF; Jiang, G

Removal of Pharmaceuticals and Illicit Drugs from Wastewater Due to Ferric Dosing in Sewers.

Kulandaivelu, J Gao, J Song, Y Shrestha, S Li, X

Li, J Doederer, K Keller, J Yuan, Z Mueller, JF Jiang, G

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: Environ Sci Technol, 2019, 53, (11), pp. 6245-6254
Issue Date:: 2019-06-04

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Field	Value	Language
dc.contributor.author	Kulandaivelu, J
dc.contributor.author	Gao, J
dc.contributor.author	Song, Y
dc.contributor.author	Shrestha, S
dc.contributor.author	Li, X https://orcid.org/0000-0003-1768-9556
dc.contributor.author	Li, J
dc.contributor.author	Doederer, K
dc.contributor.author	Keller, J
dc.contributor.author	Yuan, Z
dc.contributor.author	Mueller, JF
dc.contributor.author	Jiang, G
dc.date.accessioned	2022-09-11T20:36:05Z
dc.date.available	2022-09-11T20:36:05Z
dc.date.issued	2019-06-04
dc.identifier.citation	Environ Sci Technol, 2019, 53, (11), pp. 6245-6254
dc.identifier.issn	0013-936X
dc.identifier.issn	1520-5851
dc.identifier.uri	http://hdl.handle.net/10453/161673
dc.description.abstract	Ferric (Fe3+) salt dosing is an efficient sulfide control strategy in the sewer network, with potential for multiple benefits including phosphorus removal in the biological reactors and sulfide emission control in the anaerobic digesters of wastewater treatment plant (WWTP). This paper extends the knowledge on the benefit of iron dosing by exploring its impact on the fate of organic micropollutants (MPs) in the wastewater using sewer reactors simulating a rising main sewer pipe. The sulfide produced by the sewer biofilms reacted with Fe3+ forming black colored iron sulfide (FeS). Among the selected MPs, morphine, methadone, and atenolol had >90% initial rapid removal within 5 min of ferric dosing in the sewer reactor. The ultimate removal after 6 h of retention time in the reactor reached 93-97%. Other compounds, ketamine, codeine, carbamazepine, and acesulfame had 30-70% concentration decrease. The ultimate removal varied between 35 and 70% depending on the biodegradability of those MPs. In contrast, paracetamol had no initial removal. The rapid removal of MPs was likely due to adsorption to the FeS surface, which is further confirmed by batch tests with different FeS concentrations. The results showed a direct relationship between the removal of MPs and FeS concentration. The transformation kinetics of these compounds in the reactor without Fe3+ dosing is in good agreement with biodegradation associated with the sewer biofilms in the reactor. This study revealed a significant additional benefit of dosing ferric salts in sewers, that is, the removal of MPs before the sewage enters the WWTP.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	AMER CHEMICAL SOC
dc.relation.ispartof	Environ Sci Technol
dc.relation.isbasedon	10.1021/acs.est.8b07155
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Illicit Drugs
dc.subject.mesh	Iron
dc.subject.mesh	Sewage
dc.subject.mesh	Sulfides
dc.subject.mesh	Waste Water
dc.subject.mesh	Sulfides
dc.subject.mesh	Iron
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Water
dc.subject.mesh	Illicit Drugs
dc.title	Removal of Pharmaceuticals and Illicit Drugs from Wastewater Due to Ferric Dosing in Sewers.
dc.type	Journal Article
utslib.citation.volume	53
utslib.location.activity	United States
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
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-11T20:35:48Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	53
utslib.citation.issue	11

Abstract:

Ferric (Fe3+) salt dosing is an efficient sulfide control strategy in the sewer network, with potential for multiple benefits including phosphorus removal in the biological reactors and sulfide emission control in the anaerobic digesters of wastewater treatment plant (WWTP). This paper extends the knowledge on the benefit of iron dosing by exploring its impact on the fate of organic micropollutants (MPs) in the wastewater using sewer reactors simulating a rising main sewer pipe. The sulfide produced by the sewer biofilms reacted with Fe3+ forming black colored iron sulfide (FeS). Among the selected MPs, morphine, methadone, and atenolol had >90% initial rapid removal within 5 min of ferric dosing in the sewer reactor. The ultimate removal after 6 h of retention time in the reactor reached 93-97%. Other compounds, ketamine, codeine, carbamazepine, and acesulfame had 30-70% concentration decrease. The ultimate removal varied between 35 and 70% depending on the biodegradability of those MPs. In contrast, paracetamol had no initial removal. The rapid removal of MPs was likely due to adsorption to the FeS surface, which is further confirmed by batch tests with different FeS concentrations. The results showed a direct relationship between the removal of MPs and FeS concentration. The transformation kinetics of these compounds in the reactor without Fe3+ dosing is in good agreement with biodegradation associated with the sewer biofilms in the reactor. This study revealed a significant additional benefit of dosing ferric salts in sewers, that is, the removal of MPs before the sewage enters the WWTP.

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http://hdl.handle.net/10453/161673