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Article: Biotransformation and adsorption of pharmaceutical and personal care products by activated sludge after correcting matrix effects

TitleBiotransformation and adsorption of pharmaceutical and personal care products by activated sludge after correcting matrix effects
Authors
Issue Date2016
Citation
Science of The Total Environment, 2016, v. 544, p. 980-986 How to Cite?
AbstractThis study reported significant suppressive matrix effects in analyses of six pharmaceutical and personal care products (PPCPs) in activated sludge, sterilized activated sludge and untreated sewage by ultra-performance liquid chromatography–tandem mass spectrometry. Quantitative matrix evaluation on selected PPCPs supplemented the limited quantification data of matrix effects on mass spectrometric determination of PPCPs in complex environment samples. The observed matrix effects were chemical-specific and matrix-dependent, with the most pronounced average effect (−55%) was found on sulfadiazine in sterilized activated sludge. After correcting the matrix effects by post-spiking known amount of PPCPs, the removal mechanisms and biotransformation kinetics of selected PPCPs in activated sludge system were revealed by batch experiment. Experimental data elucidated that the removal of target PPCPs in the activated sludge process was mainly by biotransformation while contributions of adsorption, hydrolysis and volatilization could be neglected. High biotransformation efficiency (52%) was observed on diclofenac while other three compounds (sulfadiazine, sulfamethoxazole and roxithromycin) were partially biotransformed by ~40%. The other two compounds, trimethoprim and carbamazepine, showed recalcitrant to biotransformation of the activated sludge.
Persistent Identifierhttp://hdl.handle.net/10722/293314
ISSN
2019 Impact Factor: 6.551
2015 SCImago Journal Rankings: 1.702

 

DC FieldValueLanguage
dc.contributor.authorDeng, Y-
dc.contributor.authorLi, B-
dc.contributor.authorYu, K-
dc.contributor.authorZhang, T-
dc.date.accessioned2020-11-23T08:14:58Z-
dc.date.available2020-11-23T08:14:58Z-
dc.date.issued2016-
dc.identifier.citationScience of The Total Environment, 2016, v. 544, p. 980-986-
dc.identifier.issn0048-9697-
dc.identifier.urihttp://hdl.handle.net/10722/293314-
dc.description.abstractThis study reported significant suppressive matrix effects in analyses of six pharmaceutical and personal care products (PPCPs) in activated sludge, sterilized activated sludge and untreated sewage by ultra-performance liquid chromatography–tandem mass spectrometry. Quantitative matrix evaluation on selected PPCPs supplemented the limited quantification data of matrix effects on mass spectrometric determination of PPCPs in complex environment samples. The observed matrix effects were chemical-specific and matrix-dependent, with the most pronounced average effect (−55%) was found on sulfadiazine in sterilized activated sludge. After correcting the matrix effects by post-spiking known amount of PPCPs, the removal mechanisms and biotransformation kinetics of selected PPCPs in activated sludge system were revealed by batch experiment. Experimental data elucidated that the removal of target PPCPs in the activated sludge process was mainly by biotransformation while contributions of adsorption, hydrolysis and volatilization could be neglected. High biotransformation efficiency (52%) was observed on diclofenac while other three compounds (sulfadiazine, sulfamethoxazole and roxithromycin) were partially biotransformed by ~40%. The other two compounds, trimethoprim and carbamazepine, showed recalcitrant to biotransformation of the activated sludge.-
dc.languageeng-
dc.relation.ispartofScience of The Total Environment-
dc.titleBiotransformation and adsorption of pharmaceutical and personal care products by activated sludge after correcting matrix effects-
dc.typeArticle-
dc.identifier.emailDeng, Y: dengyu@hku.hk-
dc.identifier.emailZhang, T: zhangt@hkucc.hku.hk-
dc.identifier.authorityZhang, T=rp00211-
dc.identifier.doi10.1016/j.scitotenv.2015.12.010-
dc.identifier.hkuros319458-
dc.identifier.volume544-
dc.identifier.spage980-
dc.identifier.epage986-

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