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For the purification of process water from impurities at fish processing plants, a large number of filtering devices are currently used, differing in their design parameters (mesh, woven, disco, etc.). However, in practice, these filtering devices are mainly used as the first stage of water treatment, since they can not provide sufficient quality of the filtrate. The most effective, as numerous studies of scientists of our country and the world show, are bulk granular filters. Their main advantages over other devices of similar designation are: they have a simple and reliable design; resistant to aggressive operating conditions; they are capable of effectively purifying seawater from mechanical impurities at relatively low pressure; most economical; have a filtering load capable of a long time to work without regeneration (the approximate service life of a grain-loading is 3 to 5 years) etc. In this article, the influence of vibration effects on the filtration of sea water in a designed and fabricated filter unit with bulk granular materials of natural and artificial origin, the design of which is protected by two patents for the utility model. The results of the study are presented, revealing the degree of influence of the intensity of vibration of the perforated partitioning wall on the state of bulk granular materials located on it (segregation by size, stratified vibro-packing, compacting or loosening of a layer of granular material). The dependences of the capacity of the filtration unit on the amplitude, frequency and the vibration intensity factor have been experimentally established, which made it possible to establish rational vibration parameters of the perforated septum, under which the filtering layer becomes denser, the porosity of the loading decreases, and the precipitate does not break into the filtrate.

The authors carried out a series of experimental studies to research the changes of properties in mechanically activated water and suspensions. This article presents a part of the combined temperature and hydrogen exponent studies carried out at two different universities, using two separate approaches to mechanical dispersion. Study I used a planetary whisk mixer, whereas study II used a vibrating mechanical activator, which is a modern alternative to dispersion devices used at food production facilities. The research of the properties of mechanically activated water and liquid suspensions using these methods was conducted due to both the importance of these substances for all areas of the food production industry, and the modern development of technologies and techniques used at production facilities, as well as the lack of unity among the numerous research studies conducted by leading scientists specializing in the study of the properties of water, liquid suspensions and emulsions in resting and activated states. The results of the experimental studies conducted directed authors to conduct further research of mechanically activated suspensions during the filtration process.

The piecewise linear character of the load–strain dependences of a granular medium consisting of fragile particles was experimentally established and theoretically substantiated. A model for grinding a granular medium in a conic or roller inertia mill was developed taking into consideration the features of its deformation behavior.