C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/78 (2006.01)
Patent
CA 2254406
In treatment of water by injection of ozone into the water for removal of harmful matters, odor matters, and color matters therein, either or both of a nonyl phenol and a cresol are added to the water to be treated. The nonyl phenol is added together with a lower alcohol or acetone to the water to be treated. The cresol is added together with a lower alcohol or acetone to the water to be treated. A p-nonyl phenol is added as the nonyl phenol for treatment. As the cresol for addition, a p-cresol is added. As the nonyl phenol for addition, such a nonyl phenol that two molecular weights of 220 and 107 are detected when measured by either or both of gas chromatography and mass spectrometry is used. By the above treatment, the decomposition reaction of ozone can be accelerated, and thereby it becomes possible to accelerate the oxidative decomposition reaction of organic matters, the amount of ozone required for the decomposition of harmful matters can be reduced with the decomposition time, The decomposition rate of organic matters can be accelerated by addition of a nonyl phenol or a cresol. Accordingly, when the process for accelerating the reaction of ozone is applied in water treatment, the treatment rate of water can be enhanced. The treatment volume per time of water can be enhanced, whereby the site area for water treatment facilities can be reduced even in the event that the capacity of a reaction tank is reduced.
Kouno Ikuo
Miura Kazuhiro
Murai Akira
Yoshikawa Motonobu
Kansai Electric Power Co. Inc.
Kansai Environmental Engineering Center Co. Ltd.
Marks & Clerk
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