Project Title:

Water Treatment by a Pervaporation Removal of Gas and Volatile Organic Compounds

92-1-12.04-2228A                                                  NAS09-18929
Water Treatment by a Pervaporation Removal of
     Gas and Volatile Organic Compounds
Membrane Technology & Research, Inc.
1360 Willow Road, Suite 103
Menlo Park, CA  94025
Richard W. Baker                                     (415-328-2228)

Abstract:

     Dissolved ammonia, air, and volatile organic compounds (VOCs)
interfere with the performance of current water reclamation
systems developed for space mission applications. Pervaporation is
a compact, energy-efficient technology that is able to remove
these troublesome contaminants from a water stream, producing
small, concentrated waste streams. Phase I will evaluate existing
membranes and modules with model streams containing the dissolved
gases and VOCs. Based on these results, a preliminary design of a
system suitable for a space application will be prepared. The
performance of this system and how it might best be integrated
into a complete water reclamation process will be addressed. In
Phase II, a proof-of-concept system based on the design will be
built and demonstrated.

Potential Commercial Application:

Potential Commercial Applications:  Pervaporation of the removal
of VOCs from water is already at the pre-commercialization stage.
This project would provide data relevant to additional
applications such as the de-aeration of boiler feed water and the
removal of ammonia, sulphur dioxide, and hydrogen sulfide from
industrial waste streams.

                                     ***