Integrated membrane processes for augmenting water resources and silica recovery at geothermal power plants
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The interdependence of water and energy, or the “water-energy nexus”, exacerbates the stress on both fresh water and energy resources. Power plants require high volumes of water for cooling purposes. Treated impaired groundwater is one alternative source of cooling tower make-up water. These water sources often contain high concentrations of low-solubility minerals such as silica. Oversaturation of silica can cause polymerization, leading to colloidal deposits, which are very difficult to remove from surfaces. Water from a geothermal power plant located in northeastern Nevada was selected for ...