Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1994-03-14
1995-10-17
Corbin, David H.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
405258, B09B 300
Patent
active
054584370
ABSTRACT:
Non-ionic pollutants are removed from the soil by contacting the soil with a mixture of a particulate material having an anionic surfactant absorbed to a magnetic oxide. The surfactant complexes through the anionic charge to the magnetic particle and the non-ionic pollutants partitions into the sorbed surfactant. The particulate material including the surfactant and pollutant are magnetically removed from the soil. A typical embodiment utilizes ferric ferrous oxide and alkyl lauryl polyoxycarboxylate to remove polychlorinated biphenyls from soil.
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Jaffe Peter R.
Park Jae W.
Corbin David H.
Trustees of Princeton University
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