caa a22 4500 463171314 CHVBK 20180406164814.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10163-007-0176-y doi (NATIONALLICENCE)springer-10.1007/s10163-007-0176-y Photodegradation of tetraphenyltin contained in polychlorinated biphenyl-based transformer oil simulants in alkaline 2-propanol solution [Elektronische Daten] [Takashi Yamamoto, Atsushi Ohara, Yukio Noma, Katsushi Nishizawa, Akio Yasuhara, Shin-ichi Sakai] The photodegradation of tetraphenyltin (TePT) contained in polychlorinated biphenyl (PCB)-based transformer oil simulants by ultraviolet (UV) irradiation in alkaline 2-propanol solutions was examined. In the absence of PCBs, the TePT level fell to below 1% of the initial concentration within 30 min. In the absence of both PCBs and an alkali, the concentrations of tri-, di-, and monophenyltins initially increased to a few milligrams per liter, and then reduced to below the detection limits within 90 min. The addition of an alkali to the reaction solution slightly accelerated the photodecomposition of TePT. The decomposition of other phenyltins (PTs) was also accelerated. When PCBs with concentrations of approximately 80 times the initial TePT concentration were added, only a small fraction of the TePT decomposed within 100 min. Moreover, the levels of PTs did not change during irradiation. TePT and other PTs did decompose when the level of PCBs was reduced to the same concentration as that of TePT; however, the decomposition rates were slower than those in the absence of PCBs. In the actual treatment process, TePT and other PTs in PCB-based transformer oil are decomposed by catalytic reduction, which is used after UV irradiation. Therefore, in the actual treatment of PCB-based transformer oil wastes, pollution due to PTs can be prevented. Springer-Verlag Tokyo, 2007 Tetraphenyltin nationallicence Phenyltin compounds nationallicence Photodegradation nationallicence Polychlorinated biphenyl-based transformer oil nationallicence Yamamoto Takashi Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Ibaraki, Japan aut Ohara Atsushi PCB Detoxification Promotion Division, Power Systems and Services Company, Toshiba Corporation, Kawasaki, Japan aut Noma Yukio Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Ibaraki, Japan aut Nishizawa Katsushi PCB Detoxification Promotion Division, Power Systems and Services Company, Toshiba Corporation, Kawasaki, Japan aut Yasuhara Akio Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Ibaraki, Japan aut Sakai Shin-ichi Environment Preservation Center, Kyoto University, Kyoto, Japan aut Journal of Material Cycles and Waste Management Springer-Verlag 9/2(2007-09-01), 188-193 1438-4957 9:2<188 2007 9 10163 https://doi.org/10.1007/s10163-007-0176-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10163-007-0176-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yamamoto Takashi Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Ibaraki, Japan aut NATIONALLICENCE 700 1- Ohara Atsushi PCB Detoxification Promotion Division, Power Systems and Services Company, Toshiba Corporation, Kawasaki, Japan aut NATIONALLICENCE 700 1- Noma Yukio Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Ibaraki, Japan aut NATIONALLICENCE 700 1- Nishizawa Katsushi PCB Detoxification Promotion Division, Power Systems and Services Company, Toshiba Corporation, Kawasaki, Japan aut NATIONALLICENCE 700 1- Yasuhara Akio Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Ibaraki, Japan aut NATIONALLICENCE 700 1- Sakai Shin-ichi Environment Preservation Center, Kyoto University, Kyoto, Japan aut NATIONALLICENCE 773 0- Journal of Material Cycles and Waste Management Springer-Verlag 9/2(2007-09-01), 188-193 1438-4957 9:2<188 2007 9 10163 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer