Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Patent
1995-03-13
1997-11-04
Fortuna, Ana
Liquid purification or separation
Processes
Utilizing electrical or wave energy directly applied to...
210763, 210505, 210251, 2103231, 2104331, 210437, 210446, 250215, B01D 1706
Patent
active
056835892
ABSTRACT:
The reactor has two tubes arranged concentrically, one having a larger diameter than the other, the tubes thus defining an inner channel and an outer channel. The inner channel contains an elongated light source, such as a bulb or a fiber optic bundle receiving sunlight from a solar collector, radiating light outwardly, the light including a substantial component of light having a wavelength of less than 390 nm. The outer channel has at least one and preferably a number of angled conical baskets arranged therein, each basket covering all of the channel and having a face supporting a fiber glass mesh thereon, exposed towards the light. An alternative embodiment reflects sunlight inwardly towards a single tube with baskets. Each basket has a plurality of small apertures therethrough to permit water to pass therethrough, and the mesh is impregnated with TiO.sub.2 particles. Preferably, the inner surface of the outer channel is reflective. The mesh is prepared by a process which includes treatment of the TiO.sub.2 particles with methanol, preferably in a 25% solution with water, or with some other suitable dispersant prior to placement on the substrate.
REFERENCES:
patent: 3246767 (1966-04-01), Pall et al.
patent: 4732879 (1988-03-01), Kainowski et al.
patent: 4892712 (1990-01-01), Robertson et al.
de Lasa Hugo I.
Valladares Julio
Armstrong R. Craig
Fortuna Ana
University of Western Ontario
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