Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1993-10-21
1996-02-13
Taylor, Dennis L.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
3661771, 405258, 405263, B09B 300, E02D 312
Patent
active
054907411
ABSTRACT:
Apparatus for metered blending of contaminated soil or sludge materials with dry powder and liquid chemicals to stabilize the contaminated materials. A vibratory screen separates the material to a desired size for processing. The screened material enters a bin and is conveyed therein to a discharge end where an adjustable gate meters the materials into a mixing chamber. At the discharge end, dry and liquid chemicals are separately metered into the mixing chamber wherein the material and chemicals are thoroughly mixed and from which the blended materials are discharged. An attachment may be provided which allows flail chains to process wet clay soils by breaking the wet clay clods into sizes which can pass through the vibratory screen means.
REFERENCES:
patent: 4498783 (1985-02-01), Rudolph
patent: 4712919 (1987-12-01), Bouldin
patent: 4913586 (1990-04-01), Gabbita
patent: 4918659 (1990-04-01), Bragg et al.
patent: 4927293 (1990-05-01), Campbell
patent: 5005980 (1991-04-01), Zimmerman
patent: 5013185 (1991-05-01), Taki
patent: 5251825 (1993-10-01), Dumaine et al.
Red Rose Environmental, Inc.
Taylor Dennis L.
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