Publication number: 20060081811
Abstract: Iron composite particles for purifying soil or ground water, comprise an iron component, at least one noble metal selected from the group consisting of ruthenium, rhodium and palladium, and carbon or aluminum, and having a noble metal content of 0.01 to 5.00% by weight and a particle diameter of 0.01 to 1.0 ?m. The iron composite particles and the purifying agent according to the present invention are capable of decomposing aliphatic organohalogen compounds such as dichloromethane, carbon tetrachloride, 1,2-dichloroethane, 1,1-dichloroethylene, cis-1,2-dichloroethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, trichloroethylene, tetrachloroethylene, 1,3-dichloropropene or the like, and aromatic organohalogen compounds such as dioxins, PCB (polychlorinated biphenyl) or the like, which are contained in soil, ground water or waste water, at ordinary temperature in an efficient and economical manner.
Type:
Application
Filed:
March 7, 2005
Publication date:
April 20, 2006
Applicant:
TODA KOGYO CORPORATION
Inventors:
Toshiki Matsui, Tomoyuki Imai, Yasuhiko Fujii, Tomoko Okita, Kenji Okinaka, Masayuki Uegami, Osamu Okimoto, Junichi Kawano, Koji Kakuya