Recovery of volatile organic compounds from emulsion of volatile

Details Recovery of volatile organic compounds from emulsion of volatile Recovery of volatile organic compounds from emulsion of volatile

1997-05-23

2000-03-21

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210649, 95 45, 95 50, B01D 1500

Patent

active

060398787

ABSTRACT:
Volatile organic compounds (VOCS) can be removed from surfactant solutions using pervaporation with hydrophobic pervaporation membranes. This process can be used to remove volatile non-laqueous phase liquids from surfactant-based soil washing and soil flushing solutions for recovery of the volatile compounds and reuse of the surfactant. The process of the present invention can also be used to separate VOCs from industrial process streams containing surfactants for in-process recycling and reclamation of the VOCs and/or surfactants. In addition, the process of the present invention can be used to separate VOCs from industrial waste streams containing surfactants for waste volume reduction or for recovery/recycle of the VOCs and/or surfactant.

REFERENCES:
patent: 4960520 (1990-10-01), Semmens
patent: 5472613 (1995-12-01), Schofield
patent: 5753008 (1998-05-01), Friensen et al.

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