Process for the remediation of soil polluted by organic...

Details Process for the remediation of soil polluted by organic... Process for the remediation of soil polluted by organic...

2007-10-30

2007-10-30

Langel, Wayne A. (Department: 1754)

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

C134S012000, C588S261000

Reexamination Certificate

active

10481413

ABSTRACT:
An improved process is described for the removal of organic pollutants from soil by extraction with a lipophylic solvent, wherein the improvement consists in the fact that the purified soil is treated with water to remove the residual solvent. This process allows the residual solvent to be completely removed from the purified soil enabling it to be re-inserted into the environment, with a low energy consumption and a greater guarante of safety in the running of the plant.

REFERENCES:
patent: 5055196 (1991-10-01), Darian et al.
patent: 5585002 (1996-12-01), Nardella et al.
patent: 5779813 (1998-07-01), Plunkett
patent: 5986147 (1999-11-01), Plunkett
patent: 0 934 780 (1999-08-01), None
patent: 934 780 (1999-08-01), None
patent: 99 20409 (1999-04-01), None
patent: 99/20409 (1999-04-01), None

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