Physicochemical Treatment of Oil Sediments in Oil Sludge Utilization

Abstract—The effect of complex physicochemical treatment combining low-frequency acoustic action and the use of depressor additives on the composition and viscosity properties of oil sludge was studied. After the complex action, the viscosity of the treated sediments additionally decreased by a factor of 1.5–2, and the thixotropic recovery of properties increased to 72 h. The minimum values of the viscosity of the mixtures of oil sludge with oil correspond to a maximum decrease in the concentration of benzene and alcohol–benzene resin components and an increase in the amount of the oil fraction.