دورية أكاديمية
Unveiling the hidden threat: spatiotemporal trends and source apportionments of per-and polyfluorinated alkyl substances in wastewater treatment plants in South Africa
| العنوان: | Unveiling the hidden threat: spatiotemporal trends and source apportionments of per-and polyfluorinated alkyl substances in wastewater treatment plants in South Africa |
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| المؤلفون: | Moloko Florence Morethe, Lizzy Mpenyana-Monyatsi, Adegbenro Peter Daso, Okechukwu Jonathan Okonkwo |
| المصدر: | Water Science and Technology, Vol 89, Iss 1, Pp 71-88 (2024) |
| بيانات النشر: | IWA Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering |
| مصطلحات موضوعية: | pfass, source apportionment, south africa, spatiotemporal, wastewater treatment plants, Environmental technology. Sanitary engineering, TD1-1066 |
| الوصف: | At least 11 per-and polyfluorinated alkyl substances (PFASs) were more prevalent during the dry season, whereas only PFBA, L-PFBS, L-PFOS, and PFOA were prevalent during the wet season in 11 WWTPs. The ∑21 PFAS levels in the influent and the effluent ranged from 137 to 3327 ng/L and 265–7,699 ng/L in the dry season and 61–2,953 ng/L and 171–3,458 ng/L in the wet season, respectively. The highest mean concentrations were observed in the influent and effluent for PFOA (586 ng/L) and L-PFBS (552 ng/L); and FOET (1,399 ng/L) and PFNA (811 ng/L) during dry and wet seasons, respectively. During the wet season, 6:2 FTS was observed at the highest concentrations, exhibiting 4,900 ng/L (66%) and 2,351 ng/L (39%), 1,950 ng/L (53%) in SST and BNR, respectively. Principal component analysis (PCA), hierarchical clustering (HCA), and PFHpA/PFOA, PFBA/PFOA, and PFNA/PFOA ratios revealed mixtures of PFAS sources into WWTPs. HIGHLIGHTS PFASs were detected in 11 South African wastewater treatment plants.; PFASs varied seasonally and within different process units.; Perfluoroalkyl sulfonic acids and fluorotelomers accounted for high concentrations of PFASs in WWTPs.; For the first time, the study reports on fluorotelomers in South African WWTPs and; Statistical methods revealed a mixture of PFAS sources – domestic discharge and atmospheric precipitation.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0273-1223 1996-9732 |
| Relation: | http://wst.iwaponline.com/content/89/1/71; https://doaj.org/toc/0273-1223; https://doaj.org/toc/1996-9732 |
| DOI: | 10.2166/wst.2023.401 |
| URL الوصول: | https://doaj.org/article/faa3a9eb5b144e4f94497374fff24440 |
| رقم الأكسشن: | edsdoj.faa3a9eb5b144e4f94497374fff24440 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 02731223 19969732 |
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| DOI: | 10.2166/wst.2023.401 |