Removal of silica from spent geothermal brine

Technical Report · Thu Dec 01 04:00:00 EST 1977

DOI:https://doi.org/10.2172/5228082· OSTI ID:5228082

Ryon, R W; Hill, J H

Preliminary survey experiments conducted at the LLL Salton Sea Geothermal Test Site in April and May, 1977 are reported. The addition of caustic to raise the brine pH to approximately 6 precipitated silica and other materials. The addition of flocculating agents, such as ferric hydroxide, aids settling and filtration. Small-scale pilot plant studies are recommended.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5228082
• Report Number(s): UCID-17702
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150600* -- Geothermal Energy-- Environmental Aspects
152001 -- Geothermal Data & Theory-- Properties of Aqueous Solutions
ADDITIVES
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
BRINES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
FILTRATION
FLOCCULATION
FLUIDS
FUNCTIONAL MODELS
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
Geothermal Legacy
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
IRON CHLORIDES
IRON COMPOUNDS
IRON HYDROXIDES
MANAGEMENT
MINERALS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PILOT PLANTS
PRECIPITATION
PURIFICATION
RECOMMENDATIONS
REMOVAL
SALTON SEA GEOTHERMAL FIELD
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOLUTIONS
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
WASTE DISPOSAL
WASTE MANAGEMENT