Title:
METHOD OF CONCENTRATING AND REMOVING HARMFUL SUBSTANCE USING DOUBLE-STRANDED DNA AND ADSORBENT AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2004/062767
Kind Code:
A1
Abstract:
A method of removing a harmful substance characterized by comprising contacting a harmful substance-containing liquid to be treated with a double-stranded DNA, making the double-stranded DNA to adsorb the harmful substance by intercalation, and thus separating the same. This method, which is particularly useful for removing dioxins, can be carried out by, for example, contacting a liquid to be treated with an adsorbent comprising a double-stranded DNA or a solution containing a double-stranded DNA enclosed in a container or a bag made of a membrane allowing the permeation of the harmful substance but not the double-stranded DNA.
Inventors:
Liu, Xiang Dong (1-2-1120, Higashi 9-chome Kita 12-jo, Higashi-k, Sapporo-shi Hokkaido, 065-0012, JP)
Matsunaga, Masaji (11-7, Taihei 4-chome Sumida-ku, Tokyo, 130-0012, JP)
Nishi, Norio (1-1 Higashi 5-chome, Kita 41-jo Higashi-k, Sapporo-shi Hokkaido, 007-0841, JP)
Matsunaga, Masaji (11-7, Taihei 4-chome Sumida-ku, Tokyo, 130-0012, JP)
Nishi, Norio (1-1 Higashi 5-chome, Kita 41-jo Higashi-k, Sapporo-shi Hokkaido, 007-0841, JP)
Application Number:
PCT/JP2003/014571
Publication Date:
July 29, 2004
Filing Date:
November 17, 2003
Export Citation:
Assignee:
NISSEI BIO CO., LTD. (11-7, Taihei 4-chome Sumida-ku, Tokyo, 130-0012, JP)
Liu, Xiang Dong (1-2-1120, Higashi 9-chome Kita 12-jo, Higashi-k, Sapporo-shi Hokkaido, 065-0012, JP)
Matsunaga, Masaji (11-7, Taihei 4-chome Sumida-ku, Tokyo, 130-0012, JP)
Nishi, Norio (1-1 Higashi 5-chome, Kita 41-jo Higashi-k, Sapporo-shi Hokkaido, 007-0841, JP)
Liu, Xiang Dong (1-2-1120, Higashi 9-chome Kita 12-jo, Higashi-k, Sapporo-shi Hokkaido, 065-0012, JP)
Matsunaga, Masaji (11-7, Taihei 4-chome Sumida-ku, Tokyo, 130-0012, JP)
Nishi, Norio (1-1 Higashi 5-chome, Kita 41-jo Higashi-k, Sapporo-shi Hokkaido, 007-0841, JP)
International Classes:
A23C7/04; B01D15/00; B01D61/24; B01D61/28; B01D63/02; B01J20/24; C02F1/28; C02F1/44; (IPC1-7): B01D15/00; B01D61/00; B01D63/00
Attorney, Agent or Firm:
Hanabusa, Tsuneo c/o Hanabusa, Patent Office (Shin-Ochanomizu Urban Trinity 2,
Kandasurugadai 3-chom, Chiyoda-ku Tokyo, 101-0062, JP)
Download PDF: