METHOD FOR TREATMENT OF BOTTOMS IN OIL-SLIME COLLECTORS Russian patent published in 2007 - IPC C02F11/16 C02F101/32 

FIELD: oil-extracting and petrochemical processing industry.

SUBSTANCE: invention relates to a method for treatment of bottoms in oil-slime collectors formed in processing process of industrial waste, in particular, in oil-extracting and petrochemical processing plants. Deposit is mixed with lime material in the ratio = 3:1 into collector directly and prepared mixture is mixed with clay material additional with residual moisture 20-40% into collector also wherein the ratio deposit : lime material : clay material = 3:1:1. Then mixture from collector is fed to drying under natural conditions up to 30-40% of moisture. After partial drying the mixture is subjected for anaerobic biological treatment in the presence of nutrient medium wherein nitrogen-phosphorus compounds are used as nutrient medium, for example, ready fertilizers, and as lime material waste from heat and electric power plant are used: lumpy lime (incompletely burned material) or slime from chemical water treatment. Additional treatment is carried out with clay or drilling slime. Invention provides enhancing effectiveness for protection of environment from effect of processing waste of bottoms based on liquidation of oil-slime collectors and possibility for obtaining commercial products.

EFFECT: improved treatment method.

4 cl, 5 dwg, 9 tbl, 2 ex