An Assessment of the Inject ability of Conditioned Brine Produced by a Reaction Clarification — Gravity Filtration System in Operation at the Salton Sea Geothermal Field, Southern California

摘要

A Demonstration Reaction Clarifier — Gravity Filtration System with a 1600 GPM throughput capability was in operation at the joint DOE-SDG&E-MAGMA test facility located in the Salton Sea Geothermal Field, Southern California, during the summer of 1979. The system, which was designed to condition spent effluent from a 10 MWe-size geothermal power plant, removes supersaturated dissolved species and residual suspended solids from brine prior to subsurface brine disposal via injection wells. We established the post-processing chemical stability of conditioned effluents by means of anaerobic incubation tests at 90°C. The effect of residual dissolved polymer, that might be used for the purpose of scale control in upstream power plant components on the efficiency of reaction clarification, was also evaluated. Membrane filtration and core tests were used to assess the injectability of processed brine.