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- W2040266988 abstract "Fundamental studies were carried out on the removal of polychlorinated biphenyls (PCB) contained in polluted source of supplying water. Activated carbon and coagulants such as aluminium sulfate and polyaluminium chloride (PAC) were used for removing PCB from water. In the present work, method for determination of PCB was also studied. Gaschromatographic determination of decachlorobiphenyl (DCB), which was obtained by complete chlorination of PCB with SbCl5, gave a good result. Among several preparations of PCB, Kanechlor-600 in water was determined as DCB in a good yield by gaschromatography, after extraction with n-hexane, concentration with Kuderna-Danish condenser, and chlorination with SbCl5 in a sealed glass tube at 200°for 1 hr. Removal of PCB from water was tested with Kanechlor-600 usnig the above method of determination. Two processes of treatment for aqueous solution containing 1ppm of Kanechlor-600 showed about 90% removal. One of them was the addition of activated carbon powder and coagulant at the same time, and the other was to pass the solution through a column of granular activated carbon. These processes were used in the purification system of water supplying work in some instances. It is considered that such higher purification system will be effective in removal of PCB from polluted water." @default.
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- W2040266988 date "1973-01-01" @default.
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- W2040266988 title "Hygienic Chemical Studies on Supplying Water Gas Chromatographic Method for Determination of PCB as Decachlorobiphenyl and Its Application for Measurement of PCB Removal by Purifying Process" @default.
- W2040266988 doi "https://doi.org/10.1248/jhs1956.19.40" @default.
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