Claims
- 1. A process for the purification of water comprising:
- a. feeding water onto a solar heat absorbing surface so as to form a sheet of water thereon,
- b. feeding a liquid which has a density and vapor pressure less than said water, onto said sheet, so as to form a layer of said liquid on said sheet, which functions at least to transmit solar radiation to said water,
- c. preheating said water by direct solar radiation,
- d. further preheating said water by reflected solar radiation and forming a still air blanket over said layer with reflection and still air blanket producing means,
- e. conducting step (c) and (d) simultaneously, so as to produce preheated water,
- f. feeding said preheated water from said sheet to an evaporator means,
- g. evaporating at least a portion of said preheated water within said evaporator means, to form water vapor,
- h. feeding said water vapor to a condenser means,
- i. condensing water vapor so as to recover a purified water product therefrom.
- 2. The process of claim 1, wherein said reflection and still air blanket forming means comprises a honeycomb structure which functions to reflect solar radiation and to form said blanket of still air.
- 3. The process of claim 1, wherein said reflection and still air blanket forming means comprises a plurality of flat mirrors which functions to reflect solar radiation and a screen which functions to form said still air blanket.
Priority Claims (1)
Number |
Date |
Country |
Kind |
15642/73 |
Nov 1973 |
CH |
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Parent Case Info
This is a continuation, of application Ser. No. 520,941, filed Nov. 4, 1974, now abandoned.
US Referenced Citations (7)
Continuations (1)
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Number |
Date |
Country |
Parent |
520941 |
Nov 1974 |
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