Inderscience Publishers

Waste management of a microemulsion using elevated temperatures

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Elevated temperatures reduced NAPL-saturated fraction of a treated SPME waste effluent. As temperature increased, aqueous fraction of the separated SPME increased to 0.96 at 90°C. Composite volume samples had optimal separation at 75°C, where >95% of NAPL mass partitioned into the organic phase; while in first pore volume samples, it decreased with increasing temperature after 70°C. Increasing temperature of composite volume samples increased surfactant partitioning into the organic phase; in first pore volume samples, it was evenly divided into both phases. Increased temperatures reduced COD of aqueous phases >75%. Overall, elevated temperatures reduced volume of NAPL-saturated solution by 96%.

Keywords: single-phase microemulsion, waste management, elevated temperatures, phase separation, NAPL, volume reduction, surfactant partitioning, non-aqueous phase liquid

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