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Abstract
In the present work, study of the sonication process was investigated for saturated fatty acids degradation. Saturated fatty acids are the most hard-degradable compounds of FOG (fats, oils, and greases) wastewater contaminants. The influence of various conditions (probe immersion level into the liquid, simultaneous ultrasound irradiation and bubbling of Ar, O2, air, and O3) on the sonochemical and energy efficiency of the sonication process were studied. According to our experimental data and the state of the art, the most appropriate conditions were selected on purpose to decompose hydrophobic compounds, such as saturated free fatty acids. The most effective degradation treatment method for saturated free fatty acids was the simultaneous sonication (with high probe immersion level into the liquid) and argon bubbling (at low flow rate) under controlled temperature.