METHOD OF PREVENTING ALKALI SCALE DEPOSITION IN BRINE CIRCULATION TYPE SEAWATER DESALINATION PLANT

Title:

METHOD OF PREVENTING ALKALI SCALE DEPOSITION IN BRINE CIRCULATION TYPE SEAWATER DESALINATION PLANT

Document Type and Number:

WIPO Patent Application WO/2006/048933

Kind Code:

A1

Abstract:

A method of preventing any alkali scale deposition being a problem in a brine circulation type seawater desalination plant, especially when it is operated at a temperature range higher than in the prior art, by simple, economically efficient and easily applicable means. There is provided a method of preventing any alkali scale deposition, comprising in accordance with vapor generation by flush evaporation in evaporation chamber (4), recirculating portion (22) of CO₂ emitted by degasification from brine (2) to the evaporation chamber (4) so as to limit the degasification ratio of CO₂ (&agr ) to about 30%.

Inventors:

KISHI MASAHIRO (JP)

Application Number:

PCT/JP2004/016326

Publication Date:

May 11, 2006

Filing Date:

November 04, 2004

Export Citation:

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Assignee:

AQUASYSTEMS INC (JP)
KISHI MASAHIRO (JP)

International Classes:

C02F1/04; B01D1/00; (IPC1-7): C02F1/04; B01D1/00

Foreign References:

JPS59222289A	1984-12-13
JPS62241592A	1987-10-22
JPH05293460A	1993-11-09

Attorney, Agent or Firm:

Harada, Kunihiko (12-24 Hisamoto 1-chome, Takatsu-k, Kawasaki-shi Kanagawa, JP)

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