Colloidal properties of oil-contaminated sewage and its treatment

Oil refineries and other industrial enterprises generate a large amount of sewage contaminated with petroleum products. Sewage must be treated before it can discharged into water body. treatment methods often do not allow reducing the content products to maximum allowable values. This is because microheterogenous system characterized by variable composition high stability. It thus important study factors affecting aggregate stability as well development theoretical foundations for optimizing treatment. The paper presents properties multicomponent colloidal emulsion systems, their aggregative develops systems simulating effluents according basic chemical obtained dispersion method are studied herein. Research also includes kinetics precipitation from sewage, parameters during intensive mixing air. express-method determination used product in emulsions. regression analysis dependence optical density on found that 10 -6 µm particle removal continues 20 min, which corresponds rapid coagulation. clean-contamined emulsions decreases about times increasing barbotage speed 30 l/h. latter being l/h, sufficient when using Ca(OH) 2