Waste-treating material

Details Waste-treating material Waste-treating material

1993-03-23

1997-03-11

Ricci, John A.

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

588252, B09B 300, B09B 500

Patent

active

056095589

ABSTRACT:
A waste-treating material which comprises cement and at least one reducing metal, effective for stabilizing industrial wastes containing harmful metals like a heavy metal and the like and cyanides. A preferred example of the reducing metal is iron. Additionally the waste-treating material may also contain at least one member selected from a group consisting of a reducing agent, aluminum sulfate, allophane, and bentonite as the auxiliary. The use of this waste-treating material makes it possible to stabilize the hazardous heavy material and the cyanides contained in the industrial wastes, thereby remarkably contributing to a stabilizing treatment of the industrial wastes.

REFERENCES:
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patent: 4340510 (1982-07-01), Howanietz et al.
patent: 4377416 (1983-03-01), Maul et al.
patent: 4518508 (1985-05-01), Conner
patent: 4935034 (1990-06-01), Alexander
patent: 5043103 (1991-08-01), Manchak et al.
Database WPI, Nippon Jiryoku Senk, JP-A-56 044 085, Apr. 23, 1981.
Chemical Abstracts, vol. 110, No. 2, p. 274.
Database WPI, Nippon Kokan KK, JP-A-57 180 494, Apr. 28, 1981.
Patent Abstracts of Japan, vol. 11, No. 69 and JP-A-61 227 899 (I. Toshihiro et al, 9 Oct. 1986).

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