Abstract

At present, the production of ethyl alcohol in accordance with the current legislation is possible only on condition of complete processing or disposal of waste from the main process. The article discusses the possibility of partial replacement of industrial water at the stage of the mixture preparation with stillage filtrate and its condensate resulting from the evaporation in a vacuum unit. The data obtained showed that partial replacement of process water with the indicated substances does not lead to a decrease in the quality of the target product, while complete fermentation of raw materials occurs with the formation of alcohol in an amount exceeding the established rate. The closed production cycle reduces the negative impact of distilleries on the environment by reducing harmful emissions and ensuring the more complete and efficient processing of raw materials. In addition, this approach makes it possible to reduce the costs of production and the final product. Key words: complex processing of raw materials, waste, closed-loop process, grain stillage, feedstuffs, sour condensate, alcohol production Funding - Research work on the preparation of the manuscript was carried out at the expense of subsidy for the implementation of state assignment no. 0529-2019-0066.

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