| US 7,351,191 B2 | ||
| Method for stabilizing contaminated waste | ||
| Ajit K. Chowdhury, Madison, Wis. (US); Jeff C. Macri, Clayton, Ind. (US); Kevin L. Baker, Madison, Wis. (US); and Gregory J. Graf, Madison, Wis. (US) | ||
| Assigned to RMT, Inc, Madison, Wis. (US) | ||
| Filed on Sep. 02, 2005, as Appl. No. 11/218,678. | ||
| Claims priority of provisional application 60/606754, filed on Sep. 02, 2004. | ||
| Prior Publication US 2006/0052653 A1, Mar. 09, 2006 | ||
| Int. Cl. B09C 1/00 (2006.01) | ||
| U.S. Cl. 588—256 [588/252] | 28 Claims |
| 1. A method for solidifying an oil-containing waste, the method comprising the steps of:
providing the waste at a temperature above about 32° F.;
mixing a clay, a cement, a sulfite salt and water with the waste to form a solid waste matrix having an unconfined compressive
strength of at least about 0.5 tons/ft2, wherein the waste contains water and wherein at least one of the clay and the cement are mixed with the waste before the
sulfite salt is mixed with the waste.
|