METHOD OF SEPARATING OIL CONTENT IN WATER AND DETERMINATION METHOD OF OIL CONTENT IN WATER CONTAINING OIL CONTENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a new method of separating an oil content from water, in which specific polymeric compound is used, the oil content in the water is caught in solid aggregate with very little moisture content, and even if an amount of the addition of flocculant increases, it does not become a dispersion stabilizer of the oil content.;SOLUTION: The method of separating oil content from water comprises (a) a process of adding, to water containing the oil content maintaining a predetermined temperature, low-temperature hydrophilic-high temperature hydrophobic heat-reversible thermosensitive polymeric compound having a higher transition temperature than the temperature of the water to dissolve and prepare an aqueous solution, (b) a process of warming the aqueous solution obtained in (a) more than the transition temperature of the low-temperature hydrophilic-high temperature hydrophobic heat-reversible thermosensitive polymeric compound, and forming solid matter of thermosensitive polymeric compound catching the oil content, and (c) a process of separating the solid matter from a water phase.;COPYRIGHT: (C)2005,JPO&NCIPI