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SCIENTIFIC DEVELOPMENTS OF THE D. MENDELEEV UNIVERSITY OF CHEMICAL TECHNOLOGY OF RUSSIA
ArticleName Possible use of precipitation for water recirculation system of a machine building site: analysis
DOI 10.17580/tsm.2021.10.08
ArticleAuthor Kurbatov A. Yu., Fadeev A. B., Averina Yu. M., Vetrova M. A.
ArticleAuthorData

D. Mendeleev University of Chemical Technology of Russia, Moscow,Russia:

A. Yu. Kurbatov, Associate Professor at the Department of Innovative Materials and Corrosion Protection, Candidate of Technical Sciences, e-mail: kurbatov@muctr.ru
A. B. Fadeev, 3nd Year PhD Student of the Department of Industrial Ecology
Yu. M. Averina, Associate Professor at the Department of Innovative Materials and Corrosion Protection, Candidate of Technical Sciences
M. A. Vetrova, 2st Year Student of the Department of Innovative Materials and Corrosion Protection

Abstract

An urgent task for industrial enterprises of metallurgical complexes is to create a rational and most environmentally friendly cycle of recycling water supply. One of the options for optimizing the efficiency of the water supply system is the collection and use of precipitation. This article presents the conducted studies of the chemical composition of atmospheric precipitation collected from the roof of the mechanical assembly shop of a machine-building enterprise in the Moscow region, as well as the possibilities of their further use in the circulating water supply cycle of this enterprise. At the first stage of the experiments, a primary assessment of the chemical and microbiological indicators of the quality of atmospheric precipitation was carried out depending on the season, and the data obtained were compared with the requirements of regulatory documents. In order to inhibit biological processes occurring during the collection and accumulation of atmospheric precipitation, a technology for the disinfection of effluents was proposed, based on the use of hydrodynamic cavitation devices. A method for calculating the applied hydrodynamic devices is presented. The technology of ultrafiltration purification through ceramic membrane filters was proposed as the final stage of additional purification of atmospheric precipitation but with standard values. This stage allows with a high degree of efficiency to remove from the water micro-impurities of suspended solids, as well as formed in the process of hydrodynamic treatment of insoluble compounds. The proposed technology of hydrodynamic treatment of atmospheric water with subsequent ultrafiltration was subsequently successfully tested in real conditions. The calculation of the expected volumes of formation and collection of atmospheric precipitation was carried out with an assessment of the possibility of reducing the volume of water consumption from an artesian well. The high prospects of using atmospheric precipitation for feeding individual operations (galvanic processes, boiler water) have been confirmed.

This research was carried out under a programme aimed at giving support to young research and teaching staff of D.Mendeleev University of Chemical Technology of Russia; Application No. К-2020-015.

keywords Precipitation, biological fouling, hydrodynamic treatment, circulating water supply, ultrafiltration, ceramic membranes
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