The peculiarities of sorption interactions between TMSP600 material obtained from carbonate sludge from sugar production and model sewage containing vegetable oils are investigated. It was found that in the absence of synthetic surfactants, TMSP effectively interacts with emulsions of vegetable oils and causes their rapid clarification. In the presence of sodium lauryl sulfate, efficiency is markedly reduced. The observed phenomenon is explained by the presence of a negative charge on the oil droplets, as a result of which they are repulsed from TMSP600 particles. The purification efficiency remains quite high at a synthetic surfactant concentration of <0.01 mg/dm3; therefore, TMSP600 can be considered acceptable for treating sewage contaminated with vegetable oils at a low synthetic surfactant content in the system.

The comparative investigations of the physical and chemical properties of two large-tonnage organic and mineral wastes of agricultural raw materials processing - carbonate sediment (CS) formed during the processing of sugar beets and diatomaceous sludge (DS), which is a waste product of sunflower oil production were carried out in work. It was found that in both materials during burning, carbonization of organic substances occurs on the surface of the mineral core; heat treatment gives them hydrophobic properties, the pH of the aqueous extract has an alkaline reaction (for DS pH = 10.8, for CS pH = 11.5). The central part of the mineral component of CS is calcium carbonate, and DS is silicon oxide, CS has a more developed specific surface area, which is ensured by the presence of small globular structures. The oil capacity of the materials after heat treatment is 3.5 g/g for DS and 1.13 g/g for CS; dye capacity “methylene blue” for heat-treated CS is 77.9 mg/g, it is 9.5 mg/g for DS. Further research is needed to develop a method for sharing these materials for the effective treatment of multicomponent sewage.