Вісники та науково-технічні збірники, журнали
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Item Assessment of the quality and the level of the technogenic load on the surface waters of the Kherson region(Видавництво Львівської політехніки, 2020-02-10) Chugai, Angelina; Odessa State Environmental UniversityThe paper deals with the assessment of a surface water quality in the Kherson region, as well as the assessment of a technogenic load on the surface water bodies by the volumes of the wastewater and pollutants discharges over a long period of time. The problem of supplying the regions of Ukraine with water is urgent for many regions, including the Kherson region. The materials from the Regional reports, Ecological passports on monitoring a state the surface water as well as the data on the volumes of the sewage and pollutants discharges were used as baseline data. Water quality indicators was analyzed using the graphical method of a surface water quality complex assessment and method of estimation of surface water quality, based on hydrochemical parameters. Authors proposed to estimate a level of technogenic load on the surface water based on the calculation of the technogenic load module on the water objects (MWO). The purpose of the work was to assess a quality of the surface waters of the Kherson region as well as to assess a level of technogenic load on the surface water bodies of the region. It is obtained that a surface water quality of the region according to the fishery requirements in the most cases is characterized by classes IVa – IVd, category “very dirty”, by drinking water - class II, category “polluted”, class IIIa, category “dirty”. There were significant exceedances of MPC according to fishery standards in terms of such substances as nitrites, Cr (VI), Cu and Ni. Maximum excesses were noted for Cr (VI) content. Also significant exceedances of the fisheries standards were observed in the content of sulfates, phosphates, Mn, BOC5, mineralization and others. In terms of economic and drinking requirements, the MPC was most often observed in such indicators as mineralization, BOC5 and Ni.With a general increase in water intake there is a decrease in the pollutants discharges. A level of technogenic load on the surface water bodies has significantly decreased. The obtained results are a part of a comprehensive study, which are devoted to the complex assessment of technogenic load on the surface water bodies of the Northwest Black Sea regions.Item Estimation of technogenic load on the surface water of the North-Western Black Sea Coast region(Lviv Politechnic Publishing House, 2019-03-20) Chugai, Angelina; Dzhura, Oksana; Odessa State Environmental UniversityThe paper considers the main sources of anthropogenic pollution of the surface waters of the North-Western Black Sea Coast regions. The level of anthropogenic loading on the surface water by the volumes of sewage and pollutant discharges into the water objects is estimated.Item Peculiarities of electrical discharge in the Penning’s cell with sectional anode(Published by Lviv Polytechnic National University, 2002) Shandra, Zenon; Danilina, Tamara; Lviv Polytechnic National University; Tomsk State University of Control Systems and RadioelectronicsIon sputtering can be used for receiving of thin films of high temperature superconductors specifically on the base of YBaCuO ceramics [1]. But there is considerable influence of substrate placement relatively target erosion zone on the properties of films at usage of magnetron discharge of direct current. It can be explained by bombardment of substrate by ions, which appear at target material sputtering [2]. From the target erosion zone the ion stream on the substrate is maximum. To improve the properties of films the substrate is placed from one side of erosion zone but the stochiometric structure and uniformity of the film thickness on the substrate become worse [3]. To eliminate bombardment of substrate by ions, Penning’s discharge can be used. In this case two cathodes (targets) are parallel and ion streams from cathodes are moving towards. The substrate is outside discharge what allows to eliminate ion component of stream on the substrate [4].