CPG

Abstract: Produced water at offshore and onshore petroleum and natural gas extraction sites is very complex and contains many inorganic and organic contaminants. Such contaminants include free and emulsified petroleum oils and suspended solids. Gas flotation technologies are commonly used to remove finely dispersed oil droplets and suspended solids. New generation of flotation systems use nanobubbles-microbubbles generators that can produce very small bubbles ranging from 1 – 1,000 nanometers and 1-30 microns. However, influence of various parameters such as pH, salinity, temperature, pressure, type, and dosage of polymeric flocculants, mixing energy and hydraulic residence time have not been studied. Here we present a detailed analysis and literature review of parameters that influence the performance of such flotation systems.

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