METHOD OF DECONTAMINATING AND RECYCLING OILY SLUDGE Russian patent published in 2013 - IPC C02F11/14 C02F1/46 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of decontaminating and recycling oily sludge and can be used particularly in oil and gas companies. The method of decontaminating and recycling oily sludge involves mixing oily sludge with unslaked lime, mineralised water and a modifier - spent silica gel. The mixture is additionally treated with a constant electric field until the end of the process of formation of a calcium silicate structure, with the following parameters of the electrokinetic process: voltage across electrodes 4-50 V, field strength 2-20 V/m, current density 0.1-2.0 A/m², distance between electrodes 0.5-3.0 m.

EFFECT: obtaining an environmentally safe decontamination product as a secondary material resource.

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