Fate of Perfluorooctanesulfonate and perfluorooctanoate in drinking water treatment processes
| Autor: | Hidetsugu Tanaka, Kurunthachalam Kannan, Keiichi Miyano, Isao Watanabe, Yoshihiko Koizumi, Fumie Adachi, Sokichi Takagi, Shinsuke Tanabe |
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| Rok vydání: | 2011 |
| Předmět: |
Pollutant
Fluorocarbons Persistent organic pollutant Environmental Engineering Chemistry Ecological Modeling Sand filter Portable water purification Pollution Water Purification chemistry.chemical_compound Alkanesulfonic Acids Tap water Water Supply Charcoal Environmental chemistry Perfluorooctanoic acid Water treatment Caprylates Raw water Waste Management and Disposal Water Pollutants Chemical Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Water Research. 45:3925-3932 |
| ISSN: | 0043-1354 |
| DOI: | 10.1016/j.watres.2011.04.052 |
| Popis: | Perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) have been recognized as global environmental pollutants. Although PFOS and PFOA have been detected in tap water from Japan and several other countries, very few studies have examined the fate, especially removal, of perfluorinated compounds (PFCs) in drinking water treatment processes. In this study, we analyzed PFOS and PFOA at every stages of drinking water treatment processes in several water purification plants that employ advanced water treatment technologies. PFOS and PFOA concentrations did not vary considerably in raw water, sand filtered water, settled water, and ozonated water. Sand filtration and ozonation did not have an effect on the removal of PFOS and PFOA in drinking water. PFOS and PFOA were removed effectively by activated carbon that had been used for less than one year. However, activated carbon that had been used for a longer period of time (>1 year) was not effective in removing PFOS and PFOA from water. Variations in the removal ratios of PFOS and PFOA by activated carbon were found between summer and winter months. |
| Databáze: | OpenAIRE |
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