Development of a technological scheme and economic justification of ultrafiltration purification and concentration of cheese whey

The paper proposes an engineering calculation method, on the basis of which it was proposed to use three ultrafiltration units connected in series for the ultrafiltration separation of cheese whey components. These installations operated in a continuous cycle, which contained membrane devices with the calculated parameters. This paper describes a scheme for obtaining whey protein concentrate from cheese whey formed during the processing of milk into rennet cheese. The scheme works on a tubular ultrafiltration apparatus - it was accepted for development at ChS VERO LLC. In our proposed scheme, an electrodialysis unit is used, since this unit has more advantages than others. The advantage of the electrodialysis unit is the demineralization of technological solutions with a high dry matter content (concentrated whey, gelatin, sugar syrup, chicory syrup, glycerin) and tolerance. The productivity of the selected electrodialysis plant allows the concentrated volume to be brought to a demineralization level of 80% in about 1 hour. The work describes in detail the scheme of the concentration line for LLC "VEKSHA" and LLC "ChS" VERO "with obtaining dry whey concentrate, including a tube-type ultrafiltration apparatus. Also substantiated is the value determined by the ratio of the results of production and labor costs and funds for the production of cheese whey for LLC "ChS" VERO "and LLC" VEKSHA ". The expected economic effect from the introduction of the line will be 4200 thousand rubles. for LLC "VEKSHA" and 980 thousand rubles. for LLC "ChS" VERO "per year in prices of 2021.