Abstract
The relevance of the research is due to both problems arising from the pollution of surface water with oil products, and the possibility of expanding the range of effective sorbents through the use of industrial waste. The article presents the results on the selection of purification parameters for model effluents containing industrial oils as a type of oil product. Purification was carried out by a sorbent made on the basis of the waste formed during the purification of vegetable oils from waxy impurities. The sorbent was obtained as a result of roasting secondary silica-containing raw materials of oil extraction production in a certain temperature range. It was revealed that the heat treatment of the waste leads to a partial burnout of the organics and the preservation of the paraffin fractions that make up the waxy impurities. Due to this, thermally modified waste becomes hydrophobic and oleophilic; contributes to an increase in oil absorption. In the course of the study, the influence of a number of factors was established, such as the temperature of waste roasting, the duration of contact of the sorbent and the purified medium, the mass of the sorbent, on the efficiency of the process of purifying model solutions from oil products.
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