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Title:
METHOD AND DEVICE FOR TREATING WASTEWATER CONTAINING ORGANIC MATTER
Document Type and Number:
WIPO Patent Application WO/2017/195764
Kind Code:
A1
Abstract:
Provided are a method and a device for treating wastewater containing organic matter, with which it is possible to use ozone to efficiently remove, by breaking down, organic matter in wastewater containing the organic matter and inorganic carbonates. Water to be treated is subjected to a decarbonation treatment using an inorganic carbonate removal device 3, hydrogen peroxide is added, an ozone-containing gas is added by an ejector 8, the water to be treated is channeled to a static mixer 13, and the organic matter is subjected to an oxidation treatment. The ratio A/B between the ozone concentration A(g/Nm3) of the ozone-containing gas and the inorganic carbonate concentration B (g/L) of the water flowing into the ejector is set to 500-1000.

Inventors:
IKUNO, Nozomu (10-1 Nakano 4-chome, Nakano-k, Tokyo 01, 〒1640001, JP)
Application Number:
JP2017/017493
Publication Date:
November 16, 2017
Filing Date:
May 09, 2017
Export Citation:
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Assignee:
KURITA WATER INDUSTRIES LTD. (10-1, Nakano 4-chome Nakano-k, Tokyo 01, 〒1640001, JP)
International Classes:
C02F1/78; B01F3/04; B01F5/00; B01F5/04; C02F1/20
Foreign References:
JP2013208554A2013-10-10
JP2013208555A2013-10-10
JP2005144352A2005-06-09
JPH0679266A1994-03-22
JPH0596277A1993-04-20
CN1824612A2006-08-30
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (Nissin bldg, 9F 5-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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