Method and apparatus for washing soil

Details Method and apparatus for washing soil Method and apparatus for washing soil

1996-08-13

1998-11-03

Husar, John M.

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 4617, 241 791, 241DIG38, B02C 2318

Patent

active

058296913

ABSTRACT:
A soil washing apparatus utilizing a water-based surfactant to separate contaminants from soil particles with particle sizes within a predetermined range. After removing the surfactant/contaminant/water mixture from the soil particles, the soil is returned to the remediation site, while the mixture is processed through an oil/water separator. Oil and contaminants are then disposed of, while the water and surfactant are centrifuged, and the resulting supernatant is recycled back into the apparatus for use with more contaminated soil. A method of soil washing is also provided.

REFERENCES:
patent: 4881475 (1989-11-01), Deleur
patent: 4923125 (1990-05-01), Bateson et al.
patent: 4952307 (1990-08-01), Adamache
patent: 5055196 (1991-10-01), Darian et al.
patent: 5115986 (1992-05-01), Bateson et al.
patent: 5228921 (1993-07-01), Peterson
patent: 5234504 (1993-08-01), Peterson et al.
patent: 5316223 (1994-05-01), Lahoda et al.
patent: 5421527 (1995-06-01), Corte

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