The production of functional bread is considered in this paper. It is suggested to make bread using mix of wheat and sorghum flour. Mathematical modeling of experiment in order to calculate the optimal dosage of sorghum flour in the recipe was carried out. It was established that introduction of sorghum flour allows decreasing the amount of sugar in the recipes. The determination of physical-chemical properties of bread samples was conducted. Acidity, wet content and porosity of bread samples were determined. Obtained bread can be classified as functional because the portion of the bread contains more than 15 % of magnesium, manganese and silicon daily intake.

The research of a spent kieselgur obtained during beer filtration as a sorbent for cleaning of waste waters from oil. The thermal processing of a spent kieselgur influences over its ability to remove oil in the process of cleaning of waste waters. It has been discovered that the highest degree of removing oil from standardized test solutions of waste waters is provided by a spent kieselgur modified at a temperature of 400 °C. Modifying a spent kieselgur with sulphuric, hydrochloric and phosphoric acids at different temperatures increases its sorption properties in relation to oil. The maximum removal of oil from standardized test solutions of waste waters is achieved by using a spent kieselgur modified with 20 % sulphuric acid at 100 °С for cleaning them. Using a modified spent kieselgur allows increasing the degree of cleaning of waste waters contaminated with oil.

The possibilities of using spent kieselguhr, modified with various substances as a sorbent for wastewater treatment from lead ions, were investigated. Modification of spent kieselguhr with solutions of sodium and potassium hydroxides, Trilon B, aluminum sulfate, oxalic, sulfuric, nitric and hydrochloric acids can increase its ability to remove lead during wastewater treatment. The greatest activity in the process of removing lead from wastewater was found in spent kieselguhr modified with sodium hydroxide, spent kieselguhr treated with Trilon B and ammonia is slightly less active.

The study of the economic efficiency of investments in the production of a mixture of brewing waste provides an opportunity to assess the possibility of its practical use for the restoration of soils contaminated with oil and oil products. The UNIDO methodology is applied to calculate the costeffectiveness of investments in the brewing waste drying line for the remediation of contaminated soils. Fulfillment of the underlying conditions for the effectiveness of investments and the absence of a negative balance in the financial plan indicate the efficiency and feasibility of investments.