Title:
METHOD FOR FREEZING WASTE LIQUID
Document Type and Number:
Japanese Patent JPH11216460
Kind Code:
A
Abstract:
To provide a method for freezing a waste liq. with a smaller device and in a shorter time.
A raw waste liq. is freezed in a freezing part to form a raw ice layer. The raw ice layer is separated by a centrifugal separator into an ice layer and a concd. waste liq., and the concd. waste liq. is discharged outside the system or circulated to the freezing part in a separation part. The centrifugal separator has a centrifugal separation function and a melting function, the ice layer is melted by the use of the separator to form a melted liq., and the melted liq. is discharged outside the system or circulated to the freezing part.
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Inventors:
TEZUKA MASAHIRO
SHIRATO HIROYASU
ASANO TAKAYUKI
IIDA KENICHI
TOBA ATSUYA
ISODA KAZUYUKI
KOBAYASHI YUICHI
SHIRATO HIROYASU
ASANO TAKAYUKI
IIDA KENICHI
TOBA ATSUYA
ISODA KAZUYUKI
KOBAYASHI YUICHI
Application Number:
JP1930098A
Publication Date:
August 10, 1999
Filing Date:
January 30, 1998
Export Citation:
Assignee:
HOKKAIDO PREFECTURE
HOKKAIDO ELECTRIC POWER
HOKKAIDO ELECTRIC POWER
International Classes:
C02F1/22; (IPC1-7): C02F1/22
Attorney, Agent or Firm:
Takashi Ogaki
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