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  • Ескіз
    Документ
    Electric treatment and regulation of biotoxic properties of drilling waters
    (UNIVERSITAS Publishing, Romania, 2022) Berezutskyi, V. V.; Berezutska, N. L.; Khalil, V. V.; Ilinska, O. I.
    Well drilling is accompanied by the formation of significant volumes of water that contain mechanical and biological impurities. The purpose of the work is to investigate the possibility of regulating the biological properties of drilling and other types of water that using the technologies of electrical processing (electrooxidation). The analysis of methods and technologies for the disinfection of aqueous solutions and emulsions is carried out. The process of electrooxidation of bacteria in contact with the surface of the electrode plates is considered. The determination of the electrokinetic charge of the surface of particles (bacteria) is carried out, which must be taken into account when calculating the processes and equipment for the electrooxidation of bacteria in technological aqueous solutions such as emulsions. The processes of electrooxidation of aqueous emulsions such as Ukrinol and Triethanolamine which are widely used in cutting, grinding, etc., are considered. Physical and mathematical models of disinfection processes at different values of electric current and surface area of oxidizing electrodes are studied. The factors influencing the disinfection process have been determined. Conceptual approaches to the creation of electrooxidizing devices for the disinfection of emulsions directly in the channels through which aqueous technological solutions move are proposed. Aspects of practical application of electrooxidation technology are considered.
  • Ескіз
    Документ
    Guidelines for laboratory works on the topic "The study of the ground connector’s resistance to electric current flow"
    (2022) Mezentseva, I. O.; Ilinska, O. I.; Yevtushenko, N. S.
    Guidelines for laboratory works are intended for practical work from the course "Fundamentals of Occupational Safety and Health" of the first (bachelor's) level of training for students of higher education in the specialties of the NTU "KhPI". The goal of the work – to investigate the resistance of a ground connector to electricity current flow depending on the grounder’s parameters and design; to determine the quotient of the use of group ground connection.
  • Ескіз
    Документ
    Guidelines for laboratory works on the topic "Industrial noise study"
    (2022) Mezentseva, I. O.; Ilinska, O. I.; Movmyga, N. E.
    Guidelines for laboratory works are intended for practical work from the course "Fundamentals of Occupational Safety and Health" of the first (bachelor's) level of training for students of higher education in the specialties of the NTU KhPI. It is well known that noise adversely affects the human body. Workers who deal with noisy machines and mechanisms develop permanent hearing impairment, which often leads to occupational diseases. The long-term effect of noise on the human body leads to the development of chronic overfatigue, impaired thermoregulation, and the appearance of such symptoms as poor sleep, drowsiness, and impaired thermoregulation. All this can cause an accident at work. Noise affects the digestive and circulatory systems, the cardiovascular and endocrine systems, the nervous system, etc. Noise not only worsens a person's well-being, but also reduces work productivity by 10-15%. In this regard, the fight against it is not only of sanitary and hygienic importance, but also of great technical and economic importance. Industrial noise is one of the main harmful factors that causes occupational sensorineural deafness in workers of various professional groups. In the structure of occupational diseases in Ukraine, hearing diseases occupy the third place - 14.9% of the total number of diagnoses. Machine-building enterprises are one of the powerful sources of noise pollution. The purpose of these methodological instructions is for students to acquire the skills to independently solve an engineering problem: development of acoustic means of protection against noise in production, selection of the optimal option; determining the effectiveness of noise reduction measures at workplaces, taking into account the characteristics of noise sources and the peculiarities of their location in the room, etc. The goal of the work "Industrial noise study" is to assimilate the ways of constant noise rationing, experimental study and calculation of sound level (the sound pressure) from several sources, as well as sound isolation properties of a wall partition.