METHOD OF PROCESSING HIGHLY POLLUTED OILY WATER, DEPOSITS AND SOIL, AND CORRESPONDING EQUIPMENT Russian patent published in 2008 - IPC C02F1/40 B09C1/00 C02F101/32 

FIELD: technological processes; chemistry.

SUBSTANCE: method includes preliminary processing of soil and/or deposits via washing it with technical cleansing agent (TCA)(TMC), cleaning the slurry from sand and its separation into three phases - sludge, used TCA solution and liquid petrochemicals, which are directed to allocation tank. Used TCA solution is refreshed, heated and sent back to first stage of the process. Oily water is processed simultaneously, filtered and then sent to allocation tank, where it is mixed with liquid petrochemicals. The mixture is heated, filtered and then sequentially evaporated. The mixture is first separated into water and antifloating emulsion with 60% of emulsion water, then processed by deemulsifying agent and modifier, at constant mixing and heating, and then evaporated until 1-10% of water remains. Separated and evaporated water is decanted and supplied sewers collecting main. Sludge, gathered by decanting and separated from slurry, is sent to sludge well. Sand, separated from slurry, is gathered and used in other processes. Additional water treatment to fishery waters bodies standard is also possible, as well as recovery of TCA solution using additionally treated water. The equipment used includes tank for contaminated soil and deposits, tank for oil contaminated water, as well as units, produced by industry, which include grit catcher, separators, heaters, filters etc.

EFFECT: products received can be used for commercial realisation.

10 cl, 2 dwg, 3 ex