Title:
METHOD FOR REMOVING HEAVY METAL IN INCINERATION ASH
Document Type and Number:
WIPO Patent Application WO/2004/058423
Kind Code:
A1
Abstract:
A method for removing a heavy metal in an incineration ash, characterized in that it comprises contacting an incineration ash from an industrial waste with water to form an aqueous solution containing a heavy metal, and contacting the aqueous solution with a heavy metal absorbing agent. The method allows the removal of heavy metals in an incineration ash in a simple and easy way with good efficiency and the promotion of the reuse of the incineration ash.
Inventors:
Nakao, Hiroshi (1-1-13-1102, Fujisaki Tsuchiura-shi, Ibaraki, 300-0813, JP)
Suzuki, Hironori (2-6-1-B-102, Koyadai Tsukuba-shi, Ibaraki, 305-0074, JP)
Usui, Masataka (4-33-12, Kamoi Midori-k, Yokohama-shi Kanagawa, 226-0003, JP)
Nomura, Yasuo (3-191, Takabata NakagawA-k, Nagoya-shi Aichi, 454-0911, JP)
Suzuki, Hironori (2-6-1-B-102, Koyadai Tsukuba-shi, Ibaraki, 305-0074, JP)
Usui, Masataka (4-33-12, Kamoi Midori-k, Yokohama-shi Kanagawa, 226-0003, JP)
Nomura, Yasuo (3-191, Takabata NakagawA-k, Nagoya-shi Aichi, 454-0911, JP)
Application Number:
PCT/JP2003/016784
Publication Date:
July 15, 2004
Filing Date:
December 25, 2003
Export Citation:
Assignee:
KOWA CO., LTD. (6-29, Nishiki 3-chome Naka-k, Nagoya-shi Aichi, 460-8625, JP)
Nakao, Hiroshi (1-1-13-1102, Fujisaki Tsuchiura-shi, Ibaraki, 300-0813, JP)
Suzuki, Hironori (2-6-1-B-102, Koyadai Tsukuba-shi, Ibaraki, 305-0074, JP)
Usui, Masataka (4-33-12, Kamoi Midori-k, Yokohama-shi Kanagawa, 226-0003, JP)
Nomura, Yasuo (3-191, Takabata NakagawA-k, Nagoya-shi Aichi, 454-0911, JP)
Nakao, Hiroshi (1-1-13-1102, Fujisaki Tsuchiura-shi, Ibaraki, 300-0813, JP)
Suzuki, Hironori (2-6-1-B-102, Koyadai Tsukuba-shi, Ibaraki, 305-0074, JP)
Usui, Masataka (4-33-12, Kamoi Midori-k, Yokohama-shi Kanagawa, 226-0003, JP)
Nomura, Yasuo (3-191, Takabata NakagawA-k, Nagoya-shi Aichi, 454-0911, JP)
International Classes:
C12N1/20; B01D15/00; B01J20/24; B01J39/04; B01J45/00; B09B3/00; C02F1/28; C02F1/26; (IPC1-7): B09B3/00; C02F1/28
Attorney, Agent or Firm:
The, Patent Corporate Body Aruga Patent Office (Kyodo Bldg, 3-6 Nihonbashiningyocho 1-chom, Chuo-ku Tokyo, 103-0013, JP)
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