Surfactant soil remediation

Details Surfactant soil remediation Surfactant soil remediation

1993-03-17

1994-12-27

Dean, Richard O.

Cleaning and liquid contact with solids

Processes

Work handled in bulk or groups

134 10, 134 1, 134 42, B08B 308, B08B 312, B08B 700, B01D 1104

Patent

active

053761820

ABSTRACT:
Soil contaminated with contaminants such as a heavy hydrocarbon or a chlorinated hydrocarbon is cleaned, preferably on-site, by contacting the contaminated soil with a supersurfactant such as the micellar surfactant formed by sonicating polar substituted heavy hydrocarbon in the presence of an alkali metal salt such as sodium silicate and a free radical generating agent such as hydrogen peroxide and sonicating the suspension. At least 85% of the contaminant is flushed or washed from the soil including fine particles having a particle size below about 70 microns.

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