Method of disposing of earth contaminated by leaking underground

Details Method of disposing of earth contaminated by leaking underground Method of disposing of earth contaminated by leaking underground

1992-03-18

1993-08-17

Corbin, David H.

Hydraulic and earth engineering

Subterranean waste disposal, containment, or treatment

With treatment of waste

405128, 588252, B09B 300

Patent

active

052362833

ABSTRACT:
Process for disposing of clay, shale or sand containing earth contaminated with petroleum products from leaking underground storage tanks (LUST) as disclosed. The LUST and surrounding contaminated earth is excavated. The clay or shale is separated from the other materials and transported to a site of a cement plant. The non-clay or non-shale material is disposed of in a non-hazardous landfill. The clay or shale is mixed with other cement precursor raw materials and the mixture is ground to form a cement feed mix. The feed mix is introduced into a rotary cement kiln causing any remaining petroleum product contained therein to be volatilized and burned within the kiln as the cement clinker is formed. The clinker is then ground for the purpose of forming cement free of petroleum product.

REFERENCES:
patent: 4913586 (1990-04-01), Gabbita
patent: 4927293 (1990-05-01), Campbell
patent: 5039415 (1991-08-01), Smith
patent: 5088856 (1992-02-01), Yocum
patent: 5098224 (1992-03-01), Netzel et al.

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