Process for purifying contaminated soil or groundwater with...

Details Process for purifying contaminated soil or groundwater with... Process for purifying contaminated soil or groundwater with...

2007-05-22

2007-05-22

Gulakowski, Randy (Department: 1712)

Compositions

Water-softening or purifying or scale-inhibiting agents

Plant or organic material containing

C210S722000, C405S128750, C502S338000

Reexamination Certificate

active

11324369

ABSTRACT:
Iron particles for purifying soil or ground water of the present invention comprise a mixed phase of α-Fe phase and Fe3O4phase, and having a BET specific surface area of 5 to 60 m2/g, an Fe content of not less than 75% by weight based on the weight of the iron particles and a sulfur content of not less than 1,000 ppm. The iron particles are capable of decomposing or insolubilizing harmful substances such as organohalogen compounds and/or heavy metals, cyanogen, etc. contained in the soil or ground water in efficient, continuous and economical manners.

REFERENCES:
patent: 6271168 (2001-08-01), Imai et al.
patent: 6276287 (2001-08-01), Imai et al.
patent: 6459012 (2002-10-01), Imai et al.
patent: 6596190 (2003-07-01), Igawa et al.
patent: 6663840 (2003-12-01), Imai et al.
patent: 6800587 (2004-10-01), Imai et al.
patent: 7022256 (2006-04-01), Uegami et al.
patent: 2003/0039857 (2003-02-01), Zhang et al.
patent: 2003/0217974 (2003-11-01), Uegami et al.
patent: 2004/0226404 (2004-11-01), Ozaki et al.
patent: 2006/0070958 (2006-04-01), Kakuya et al.
patent: 2006/0081811 (2006-04-01), Matsui et al.
patent: 2006/0113255 (2006-06-01), Kakuya et al.
patent: 2006/0151398 (2006-07-01), Uegami et al.
patent: 2001 198567 (2001-07-01), None
U.S. Appl. No. 10/862,899 filed Jun. 8, 2004.
U.S. Appl. No. 10/998,194 filed Nov. 29, 2004.
U.S. Appl. No. 11/072,638 filed Mar. 7, 2005.
U.S. Appl. No. 11/236,871 filed Sep. 28, 2005.

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