Case Study: Ivey-sol surfactant enhanced soil washing technology overview and project experience

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Courtesy of Ivey International Inc.

lvey-sols soil washing is an ex-situ surfactant enhanced remediation (SERS) treatment method which removes hazardous substances from contaminated soils, solids, tank bottom sludge, drill cuttings, drilling muds, etc. The soil washing process (Photol) involves the introduction of the contaminated solids into a treatment chamber which contains an Ivey-sol2 formulation and water, at a specified ratio. The solids are then mixed or agitated to ensure effective contact between Ivey-sol2 products and the absorbed 'surface bound1 oil contaminants. Upon contact, the Ivey-sol® surfactants liberate the contaminants off of the solids into the water phase (Photo 2). Following treatment, the solids and water are easily separated to yield clean solids (Photo 3), which can be re-used on-site, and a liquid effluent from which the oil can be recovered. The subsequent liquid effluent can then be further treated by conventional oil and water separation, reducing the clean water system requirements.

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