Biological Aspects of Clean Room Complex Operation

hemical, physical and biological corrosion and their combinations are a common cause of destruction of buildings and structures. Among the corrosion processes, biological ones are the most undesirable. In general, biocorrosion is divided into bacterial and mycological. Moreover, microorganisms can even affect building materials with high corrosion resistance. This paper presents the results of a study of the biodegradation of mineral wool, which is part of sandwich panels used for the construction of clean rooms. At the same time, the suspension of microorganisms was introduced into the mineral wool in its pure form (an aqueous suspension without the addition of nutrients), with the addition of agarized media. Species of micromycetes and bacteria as Aspergillus brasiliensis, Bacillus subtilis, Candida albicans, Pseudomonas aeruginosa were used as test cultures for testing. During the experiment, flushes were carried out from the surfaces of sandwich panels of a clean room of 10х10 cm. The results of the study showed a continuous growth of fungi and bacteria inside the mineral wool after 6 years of operation. This leads to a loss of stability of the parameters of a clean room, taking into account the conditions of its operation and maintenance. This is especially true for the implementation of technological processes that are sensitive to microbial contamination. Thus, the use of multilayer enclosing structures for the construction of clean rooms with the use of biodegradable materials is a potential cause of non-compliance with operational indicators

M.A. GONCHAROVA, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.G. ZAEVA, engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),

Lipetsk State Technical University (30, Moskovskaya Street, Lipetsk, 398055, Russian Federation)

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