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Title:
METHOD FOR TREATING TURBID WATER
Document Type and Number:
Japanese Patent JP3958564
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a method for treating turbid water containing cement produced by tunnel construction, or the like.
SOLUTION: This turbid water treating method comprises a step to neutralize cement-containing waste water by bringing it into contact with gaseous carbon dioxide and a step to filter the neutralized waste water by a filter medium having uniform pores of 10-100 μm average pore size.


Inventors:
Kumami, Kazuhisa
Miyazaki, Yasumitsu
Hagimori, Kenji
Konishi, Masaro
Application Number:
JP2001000351917
Publication Date:
August 15, 2007
Filing Date:
November 16, 2001
Export Citation:
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Assignee:
DAICEN MEMBRANE SYSTEMS LTD
OKUMURA CORP
International Classes:
B01D29/00; B01D39/16; B01D39/20; C02F1/66; (IPC1-7): B01D29/00; B01D39/16; B01D39/20; C02F1/66
Domestic Patent References:
JP51130072A
JP8173719A
JP2001104953A
Attorney, Agent or Firm:
古谷 聡
古谷 馨
溝部 孝彦
持田 信二
義経 和昌