Title:
WASTEWATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2011/135871
Kind Code:
A1
Abstract:
Disclosed is a wastewater treatment method such that, after iron trichloride is added to wastewater containing arsenic and vanadium so as to make the molar ratio of the iron to arsenic in this wastewater 20 and iron trichloride is added to this wastewater so as to make the molar ratio of iron to vanadium 10 - 80, the pH is adjusted to 5.8 - 8.6, and solid-liquid separation is carried out.
Inventors:
OBAYASHI Yoshiaki (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2011/050915
Publication Date:
November 03, 2011
Filing Date:
January 20, 2011
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
International Classes:
C02F1/62; B01J38/48; B01J38/60; B01J38/64; C01G49/00
Attorney, Agent or Firm:
MITSUISHI Toshiro et al. (Mitsuishi Law and Patent Office, 9-15 Akasaka 1-chome, Minato-k, Tokyo 52, 〒1070052, JP)
Claims:
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