The present invention is generally directed to a system for recovering CO.sub.2 from seawater or aqueous bicarbonate solutions using a gas permeable membrane with multiple layers. At elevated pressures, gaseous CO.sub.2 and bound CO.sub.2 in the ionic form of bicarbonate and carbonate diffuse from the seawater or bicarbonate solution through the multiple layers of the membrane. Also disclosed is the related method of recovering CO.sub.2 from seawater or aqueous bicarbonate solutions.

 
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< PROCESS FOR PRODUCING SILICON CARBIDE SINGLE CRYSTAL

> VERMIN EXTERMINATION USING LYSOZYME, SALT OR BIOLOGICAL FRAGMENT THEREOF, OR LYSOZYME-RELATED PEPTIDE AS AN EGG RECOGNITION PHEROMONE

> IMMUNOGENIC COMPOSITIONS COMPRISING NANOEMULSION AND HEPATITIS B VIRUS IMMUNOGEN AND METHODS OF USING THE SAME

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