Environmental aspects of fish oil production in Russia

The production of fish oils is associated with a number of environmental issues. The problem of the fishing industry is the processing of low-grade semi-finished fish oils with an acid number of over 20 units. Traditional cleaning of such semi-finished products is unprofitable. The issue of using soap water flows after refining semi-finished fish products with an alkali solution remains unresolved. It is also necessary to determine ways of rational use of pollutants extracted from industrial effluents during flotation treatment – fatty foam masses. Solving these environmental issues will increase the efficiency of fish oil production and reduce its negative impact on the environment. The purpose of the study was to determine the possible directions for the rational use of these fatty objects. These objects are a source of monounsaturated and polyunsaturated fatty ac- ids. Therefore, they should be considered as a secondary material resource for obtaining technical products for various purposes.