Other

Molecular Separations, Inc.

Clean Energy Technologies, Inc.

Louis E Furlong

James A Patterson

Martin Josef Gruber

Martin J Gruber

Gabriel B Collins

Siegfried L Stockinger

Isotope water molecules, e.g., HTO and T O, are separated from contaminated water by conveying the contaminated water through a separation chamber containing a separation material formed of an inorganic substrate with hydration sites having multiple associated waters of hydration, whereby the waters of hydration are preferentially replaced by the isotope water molecules. The discharged water, which is lower in concentration of isotope water molecules due to the preferential replacement, can be conveyed through a second separation chamber containing additional separation material to remove additional isotope water molecules. Following saturation, the separation material is heated to separate the isotope water molecules. The relatively concentrated water driven off by heating is stored or otherwise disposed of, and the separation material is reused.

Method for separating heavy isotopes of hydrogen from water

A process and apparatus for treating the heavy hydrogen isotope content of the contaminated water by contacting the contaminated water with a molecular separation material including a support medium carrying a plurality of hydration sites having associated waters of hydration, whereby a portion of the waters of hydration are replaced with heavy hydrogen isotope water molecules from the contaminated water. The hydrogen isotope water molecule content of the contaminated water is thus decreased. The molecular separation material is preferably a polymer, such as a polystyrene/divinyl benzene cross-linked polymer, having hydration sites with associated waters of hydration. Preferred hydration sites are obtained by reacting the polymer, which has been sulfonated or phosphonated to create reactive sites, with a salt of, for example, aluminum, sodium, magnesium, copper, zinc, cobalt, iron, nickel, manganese, potassium and chromium. Before or during contact with the molecular separation material, the contaminated water may be brought into contact with a separation membrane selectively permeable to light water molecules relative to hydrogen isotope water molecules, to remove light water molecules from the water, thereby increasing the concentration of said hydrogen isotope molecules.

Apparatus for separating oxides of heavy isotopes of hydrogen from water

Method for separating heavy isotopes of hydrogen oxide from water

An apparatus and method for separating oxides of heavy isotopes of hydrogen (deuterium oxide, oxides of tritium and mixed isotope oxides) from light water (H2O) which is contaminated with these heavy hydrogen isotopes such as that currently being discharged in cooling water from nuclear power plants. A central aspect of this invention includes a plurality or bundle of elongated hollow core fibers which are positioned within an elongated enclosed housing having a feed water inlet, an exit stream outlet, and a permeate outlet. At least a portion of the hollow core fibers are at least partially filled or packed with small beads which are comprised of a porous exchange resin carrying waters of hydration. Porosity is controlled by the degree of cross-linking and bead diameter of the exchange resin which is preferably combined with aluminum sulfate or ammonium hydride to form (RSO.sub.3).sub.3 Al or RSO.sub.3 NH.sub.4. By passing the contaminated water through the bead-filled hollow core fibers within the housing, significant amounts of the oxides of heavy hydrogen isotopes remain in the hollow core fiber either combined with the resin beads or collected against the inside wall surfaces of the hollow core fibers. Some of the H2O in the contaminated water permeates out of the hollow core fibers for discharge from the permeate outlet. The water which discharges from the exit stream outlet is substantially lower in heavy hydrogen isotope content. Regeneration of the apparatus is also shown.

Apparatus for separating heavy isotopes of hydrogen from water

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Sarasota, FL, United States of America

Louis E Furlong