The influence of the water matrix on the performance of sulfamethoxazole removal by catalytic wet peroxide oxidation

Ribeiro, Rui; Frontistis, Zacharias; Mantzavinos, Dionissios; Silva, Adrián; Faria, Joaquim; Gomes, Helder

Publication

The influence of the water matrix on the performance of sulfamethoxazole removal by catalytic wet peroxide oxidation

2016Conference object

dc.contributor.author	Ribeiro, Rui
dc.contributor.author	Frontistis, Zacharias
dc.contributor.author	Mantzavinos, Dionissios
dc.contributor.author	Silva, Adrián
dc.contributor.author	Faria, Joaquim
dc.contributor.author	Gomes, Helder
dc.date.accessioned	2017-01-12T16:23:12Z
dc.date.available	2017-01-12T16:23:12Z
dc.date.issued	2016
dc.description.abstract	Laboratory grade purified ultrapure water (UP) is an attractive matrix to evaluate the performance of advanced water treatment technologies, mainly due to its easy manipulation, simplicity and reproducibility of the experimental results. However, antimicrobial agents like sulfamethoxazole (SMX) are typically found in much more complex matrices throughout the urban water cycle, such as in raw and in conventionally treated urban wastewater (UWW) [1] or drinking water (DW) [2], or in surface water and groundwater [3]. Bearing this in mind, the influence of the water matrix on the performance of SMX removal by catalytic wet peroxide oxidation (CWPO) – an advanced oxidation process typically operated at atmospheric pressure and mild temperature, was assessed in this work using secondary treated UWW and DW spiked with SMX (500 μg L-1). Synthetic water (SW) containing humic acid (HA; 40 mg L-1), bicarbonate (500 mg L-1), sulphate (60 mg L-1) and chloride (200 mg L-1), was also tested in order to mimic the presence of the typical constituents of conventionally treated UWW and DW. As observed in Fig. 1a, the performance of CWPO decreases with the increasing complexity of the water matrix. This phenomenon was ascribed to the scavenging effect promoted by the different anions considered, as well as to the negative impact of dissolved organic matter typically found in secondary treated UWW, as simulated by the presence of HA (cf. Fig. 1b).	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Ribeiro, Rui ;Frontistis, Zacharias; Mantzavinos, Dionissios; Silva, Adrián; Faria, Joaquim; Gomes, Helder (2016). The influence of the water matrix on the performance of sulfamethoxazole removal by catalytic wet peroxide oxidation. In XXII Encontro Luso-Galego de Química. Bragança	pt_PT
dc.identifier.uri	http://hdl.handle.net/10198/13755
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Water	pt_PT
dc.subject	Water treatment	pt_PT
dc.title	The influence of the water matrix on the performance of sulfamethoxazole removal by catalytic wet peroxide oxidation	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.awardURI	info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F94177%2F2013/PT
oaire.citation.conferencePlace	Bragança	pt_PT
oaire.citation.title	XXII Encontro Luso-Galego de Química	pt_PT
oaire.fundingStream	SFRH
person.familyName	Gomes
person.givenName	Helder
person.identifier.ciencia-id	6218-1E19-13EE
person.identifier.orcid	0000-0001-6898-2408
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.name	Fundação para a Ciência e a Tecnologia
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
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