Soil washing apparatus and method

Details Soil washing apparatus and method Soil washing apparatus and method

1995-03-29

1997-06-10

Stinson, Frankie L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134109, 134 65, 134 61, 134 66, 134134, 134132, 134105, B08B 312

Patent

active

056371527

ABSTRACT:
An apparatus and method for removing hydrocarbons from soil is disclosed. A gradient force machine pulverizes contaminated soils, which are then mixed with release agents in a mixing tank. A water-filled separation unit receives the mixed soil, the unit having a plurality of counter-rotating augers to aid in the breakdown of the mixed soil to solid, water and hydrocarbon components. A washing container receives the solid component from the separation unit, the container having a diagonally-disposed, enclosed auger for outputting a washed solid component. Hydrocarbons that have floated to the top of the separation unit and washing container are removed by a vacuum system.

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