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Water Science & Technology: Water Supply—WSTWS Vol 10 No 1 pp 87–95 © IWA Publishing 2010 doi:10.2166/ws.2010.707 Perfluorinated chemicals (PFCs) in water purification plants (WPPs) with advanced treatment processesB. R. Shivakoti, S. Fujii, M. Nozoe, S. Tanaka and C. KunachevaGraduate School of Global Environmental Studies, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan E-mail: binaya@eden.env.kyoto-u.ac.jpResearch Center for Environmental Quality Management, Kyoto University, 1-2 Yumihama, Otsu, Shiga 520-0811, Japan E-mail: binaya@eden.env.kyoto-u.ac.jp ABSTRACT A series of perfluorinated chemicals (PFCs) surveys were conducted in two water purification plants (WPPs) having ozonation and granular activated carbon (GAC) filtration processes. In each plant, six different processes samples (source water, influent, coagulation-sedimentation effluent, ozonation effluent, GAC filtration effluent, and final tap water) were collected for two times and eight PFCs were measured. The results showed that seven kinds of PFCs (PFHxS, PFOS, PFHpA, PFOA, PFNA, PFDA, and PFUnDA) were detected in both plants with concentration range of 0.5–53.5 ng L-1, while the range of total concentration of all seven PFCs was 31–90 ng L-1. All detected PFCs were not removed effectively in both dates but removal was observed to some extent for certain PFCs (PFNA, PFDA, PFOS, and PFUnDA) by GAC filtration tank. Keywords: GAC; Japan; ozone; PFNA; PFOA; Yodo River eProduct: Buy this article for £24.00 (IWA MEMBER PRICE: £18.00) All prices include VAT. For customers where VAT should not be applied, the VAT amount will be removed upon payment |
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