Geothermal brine treatment

Details Geothermal brine treatment Geothermal brine treatment

1979-04-27

1981-11-24

Castel, Benoit

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

23301, 203 7, 203 10, 159DIG13, 210737, 210738, 210800, C02F 152, C02F 160

Patent

active

043023282

ABSTRACT:
A process is provided for treating spent geothermal brine to remove silica. The process includes introducing the brine into the reaction zone of a reactor-clarifier and allowing the brine to flow therefrom into the clarification zone of the reactor-clarifier. In the clarification zone, particles settle from the brine and are urged to the center of the tank beneath the reaction zone, and the settled particles are drawn upwardly into the reaction zone by an impeller. The particles mix with the brine in the reaction zone to form a substantially uniform distribution therein to provide nuclei for silica precipitation from the brine. A stream of sludge is removed from the bottom of the reactor-clarifier and disposed of.

REFERENCES:
patent: 2307466 (1943-01-01), Noll et al.
patent: 2401924 (1946-06-01), Goetz
patent: 2429316 (1947-10-01), Green
patent: 2979442 (1961-04-01), Badger
patent: 3583910 (1971-06-01), Stoddard
patent: 3757516 (1973-09-01), McCabe
patent: 3782468 (1974-01-01), Kuwada
patent: 3951794 (1976-04-01), Swearingen
patent: 4016075 (1977-04-01), Wilkins
patent: 4032460 (1977-06-01), Zilch et al.
patent: 4059156 (1977-11-01), Berg
Chem. Abstr., "Silica Scale Formation in Simulated Geothermal Brine", vol. 80:52260f (1974).

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