This article discusses the basic ways of water-preparation in food industry. Water-preparation plan with elements of disinfecting for production of drinking water and drinks is given. The analysis shows that water should meet definite microbiological requirements. In order to reduce its fatal influence on the health of people the clearing and preparation of water are necessary. Development of techniques and means of clearing without chemical technologies, including ozone treatment technologies, allows one to lower and to get rid of application of chemical compounds and reagents. At the moment the ozone treatment water technologies with consequent treatment on filling filters are the most rational. Ozone is the strong oxidant and disinfects water faster than chlorine in some times. With activated carbon use both the flavouring qualities and smell become better. Technology of mutual ozone processing with absorption is the most perspective for water purification and disinfection, possessives a high efficiency in comparison with attitude to pathogen microorganisms, does not lead to the formation of harmful collateral products. Therefore, the questions of development of safe technologies and means for water preparation and treatment are actual and well timed

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Current use of ion exchange unit process in water treatment for food industry is mainly for boiler feed water softening. However, potentials of ion exchange in water treatment process are of greater significance, which is exactly the matter researched in this paper. After a short review of ion exchange unit process basics, and ion exchangers as an equipment (in scope of that, a suggestions for investitor about techno-econommic analysis of offered solutions for ion exchanger line design is given, in order to minimize errors in plan and design, which might be harmful for investitor), options of using ion exchange in some phases of water treatment process for food industry are discussed, like removing of: mineral matter (softening, decarbonization, demineralization), natural organic matter, and some other constituents (nitrate, ammonia, heavy metals).

The invention refers to the methods of obtaining food (i.e. drinking, table and mineral) water. It includes extraction of the natural water from a source, its filtration and continuous disinfection through the electrolysis of argentum. Prior to the disinfection water is divided into portions through filling up reactors. The water processed is periodically poured into a collector. A mathematical equation is developed for choosing the number of reactors. The method may be used in municipal management and agriculture for improvement of water and in Pharmaceutical industry and medicine for production of drugs and solutions