DEFOAMING METHOD

Japanese Patent JP3729374

B2

PROBLEM TO BE SOLVED: To efficiently and completely remove even fine foams within a short time independently of the viscosity of a foam-containing liquid body by degassing the foam-containing liquid and then capturing the foams.
SOLUTION: A liquid 3 to be adjusted by being stirred and mixed by a mixing apparatus 2 in a liquid adjustment tank 1 contains large and small foams 4. The foam-containing liquid body 3 is sent to a defoaming apparatus 5 through a liquid sending pipe 10 by a liquid sending pump 11. The defoaming apparatus 5 is constituted of a degassing apparatus 6 and a filtering apparatus 7 and the foam-containing liquid body 3 is at first sent to the degassing apparatus 6. The degassing apparatus 6 is for decreasing the dissolved air amount in the foam-containing coating liquid 3 and mainly removes large foams in the liquid and carries out treatment to provide tolerance of air dissolving performance of the liquid. The foam-containing liquid 3 is then sent to the filtering apparatus 7. The filtering apparatus 7 captures fine foams in the foam- containing liquid body 3 which are not removed by the degassing treatment by the degassing apparatus 6 on the surface of a filter medium and removes the foams by dissolving them in the liquid.

JP4463204	Air diffuser
JP2005246114	TREATING DEVICE AND TREATING METHOD FOR AMMONIA-CONTAINING WASTEWATER

Toru Onogawa

JP20661197A

December 21, 2005

July 31, 1997

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Fuji Photo Film Co., Ltd.

B01D19/00; (IPC1-7): B01D19/00

JP61278308A
JP53064876A
JP53128793U
JP57169403U
JP4009602U
JP62005356A
JP62099305U

Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada
Hagino Taira
Kiyotaka Sasaki
Toshio Fukasawa
Zenichi Soeda

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