FOAM SEPARATION APPARATUS, WASTEWATER TREATMENT APPARATUS AND WASTEWATER RECLAIMING APPARATUS EQUIPPED WITH THE FOAM SEPARATION MEANS, AND FOAM SEPARATION METHOD

Japanese Patent JP3875076

B2

PROBLEM TO BE SOLVED: To provide a technique of smoothly performing a foam separation treatment which forms the foam and separates the formed foam from treatment water containing a foam component.
SOLUTION: A foam separation apparatus 120 provided in a wastewater treatment apparatus 100 is provided with a transfer pipe 121 and an air supply pipe 124. As regards the transfer pipe 121, its suction part 122 is disposed on the bottom of the tank, and its foam discharge part 123 is disposed on the top of the tank. When a specified amount of air is fed into the pipe 121 from the pipe 124, the air flow causes the treatment water in the tank to be sucked from the part 122 into the pipe 121 to form a gas/liquid mixed state of air and the treated water. The aeration with the air allows the treatment water to form a foam. The foam is subjected to gas/liquid separation within the pipe 121. The foam in the foam zone is transferred through the pipe 121 to the foam discharge part 123 by the air flow and is passed through a receiving member 125 and is discharged from the system through a discharge port 108.

Eiichi Suzuki
Takayuki Tamura
Yukio Doi
Hironari Fujii
Koichi Matsuo
Takakichi Miyauchi
Yousuke Tabata

JP2001350315A

January 31, 2007

November 15, 2001

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Fuji Clean Industry Co., Ltd.

C02F1/24; C02F3/08; B01D19/00; (IPC1-7): C02F1/24; B01D19/00; C02F3/08

JP2000202478A
JP51162844U
JP58048388U
JP10118686A

Hidehiko Okada
Tetsuo Fukuda
Toshiyuki Ikeda
Tetsuyuki Iwata
Atsuko Nakamura

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