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dc.contributor.author전병훈-
dc.date.accessioned2019-11-04T05:49:58Z-
dc.date.available2019-11-04T05:49:58Z-
dc.date.issued2019-05-
dc.identifier.citationJOURNAL OF HAZARDOUS MATERIALS, v. 370, Page. 138-146en_US
dc.identifier.issn0304-3894-
dc.identifier.issn1873-3336-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S030438941830579X?via%3Dihub-
dc.identifier.urihttp://repository.hanyang.ac.kr/handle/20.500.11754/111799-
dc.description.abstractThis study investigated the environmental effects of two common emerging contaminants, sulfamethazine (SMZ) and sulfamethoxazole (SMX), and their mixture using a green microalga, Scenedesmus obliquus. The calculated EC50 values of SMZ, SMX, and their mixture (11:1 wt/wt) after 96 h were 1.23, 0.12, and 0.89 mg L-1, respectively. The toxicity of the mixture could be better predicted using a concentration addition model than an independent action model. The risk quotients of SMZ, SMX, and their mixture were > 1 during the experiment, indicating their high potential risks on aquatic microorganisms. Despite their toxicity, S. obliquus exhibited 17.3% and 29.3% removal of 0.1 mg L-1 and 0.2 mg L-1 after 11 days of cultivation. The changes of SMZ and SMX removal were observed when combined, which showed a significantly improved removal of SMZ (up to 3.4 folds) with addition of SMX (0.2 mg L-1). The metabolic pathways of SMZ and SMX were proposed according to mass spectroscopic analysis, which showed six metabolites of SMX and seven intermediates of SMZ, formed as a result of ring cleavage, hydroxylation, methylation, nitrosation, and deamination.en_US
dc.description.sponsorshipThis study was supported by National Research Foundation of Korea (NRF) grants funded by the Ministry of Education, Science, and Technology (MEST) of the South Korean government (No. 2017R1A2B2004143), and the Doosan Yonkang Foundation.en_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectPharmaceutical contaminants sulfamethazine and sulfamethoxazoleen_US
dc.subjectbiodegradationen_US
dc.subjectmetabolic productsen_US
dc.subjectmicroalgaeen_US
dc.subjecttoxicity modelingen_US
dc.titleCombined effects of sulfamethazine and sulfamethoxazole on a freshwater microalga, Scenedesmus obliquus: toxicity, biodegradation, and metabolic fateen_US
dc.typeArticleen_US
dc.relation.volume370-
dc.identifier.doi10.1016/j.jhazmat.2018.07.049-
dc.relation.page138-146-
dc.relation.journalJOURNAL OF HAZARDOUS MATERIALS-
dc.contributor.googleauthorXiong, Jiu-Qiang-
dc.contributor.googleauthorKim, Sun-Joon-
dc.contributor.googleauthorKurade, Mayur B.-
dc.contributor.googleauthorGovindwar, Sanjay-
dc.contributor.googleauthorAbou-Shanab, Reda A. I.-
dc.contributor.googleauthorKim, Jung-Rae-
dc.contributor.googleauthorRoh, Hyun-Seog-
dc.contributor.googleauthorKhan, Moonis Ali-
dc.contributor.googleauthorJeon, Byong-Hun-
dc.relation.code2019001185-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING-
dc.identifier.pidbhjeon-
dc.identifier.orcidhttps://orcid.org/0000-0002-5478-765X-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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