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US 4,378,295 AGranted
Desilication of geothermal water
OwnerRobert C. Axtmanninventor
Life of this patent
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Abstract
When Geothermal water, obtained from natural sources, delivers heat to energy conversion equipment or to heat transfer surfaces, the resulting effluents are supersaturated with amorphous silica. This invention relates to passing such effluents through a fluidized particle bed in which the silica deposits on the bed particles. The coated particles are removed from the system, the coatings removed and the particles are recycled to the fluidized bed.
Claims12
A method for treating aqueous compositions high in dissolved silica to reduce the silica content which comprises:
- a. passing said aqueous composition through a bed of fine particles at a rate sufficient to maintain said particles as a fluidized bed,
- b. maintaining contact of said aqueous composition with said fluidized bed of fine particles for sufficient time to reduce the content of silica in said aqueous composition by coating said particles with silica,
- c. removing said coated particles from said fluidized bed,
- d. separating said coating from said particles, and
- e. returning said separated particles to said bed to maintain a uniform reduction in silica content
2 more elements
Dependencies are inferred from the claim text.