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1
Content available Development of New Water Deoxidization Systems for Heat and Power Plants
Shabliy Tetyana, Gomelya Mykola, Pohrebennyk Volodymyr, Ivanenko Olena, Nosachova Yuliia
Journal of Ecological Engineering
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2022
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Vol. 23, nr 1
193--205
EN
The analysis of water conditioning methods for closed water supply systems was carried out in the work. The expediency of using redoxites based on ion exchange materials to combat the corrosion processes in water recirculation systems by preliminary deoxidation of water was shown. Modified KU-2–8, Dowex Mac-3, AB-17–8, Dowex Marathon WBA, AMBERLITE IRA 96 ion exchange resins were used as deoxidizing materials.
2
Content available Ecological, Economic and Practical Aspects of Water Treatment in the Galvanic Industry
Pohrebennyk Volodymyr, Koszelnik Piotr, Nester Anatoly, Libus Tetiana, Kalda Galyna, Kida Małgorzata, Pękala Agnieszka
Ecological Engineering & Environmental Technology
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2022
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Vol. 23, iss. 1
212--222
EN
The galvanic industry and the production of printed circuit boards are a significant source of environmental pollution, they pose a threat comparable to the chemical industry. They pollute both the atmosphere, the biosphere and the hydrosphere. The paper presents an assessment of the negative impact on the environment, galvanic production and the resulting post-production waste. It was proposed to use the technology of regeneration of used treating solutions, in which the recovered metal can be reused as a secondary raw material for the production of copper products. The regenerated solution, on the other hand, can be used to treat integrated circuit boards. As part of the work, with the use of a microscope, the structural characteristics of the metal surface obtained as a result of the applied regeneration process were carried out. The indicator of the total exposure to substances present in the deposit formed during production was determined, both before (0.045) and after the introduction of the new technology (100). The economic analysis of the planned project based on the new technology showed that the implementation of the presented method of wastewater treatment allows for obtaining significant benefits, both financial and environmental. The analyses performed can be a valuable source of information on how to reduce the impact environment during the production of integrated circuit boards, as well as on the possibilities of obtaining less expensive materials in the form of secondary raw materials.
3
Content available remote Optimization of extraction processes of water-soluble polysaccharides under the electric fielda action
Malyushevskaya Antonina, Yushchishina Anna, Mitryasova Olena, Pohrebennyk Volodymyr, Salamon Ivan
Przegląd Elektrotechniczny
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2021
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R. 97, nr 12
73--76
EN
The process of water extraction of polysaccharides was experimentally investigated when pulsed, alternating and direct current passes through the suspension "hyssop grass - water".
PL
Eksperymentalnie zbadano proces ekstrakcji wody polisacharydów, gdy przez zawiesinę „trawa hyzopowa – woda” przepływa prąd pulsacyjny, zmienny i stały.
4
Content available Temporal Patterns of Quality Surface Water Changes
Mitryasova Olena, Pohrebennyk Volodymyr, Salamon Ivan, Oleksiuk Alina, Mats Andrii
Journal of Ecological Engineering
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2021
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Vol. 22, nr 4
283--295
EN
The dynamics of hydrochemical parameters of surface waters from the upper, middle and lower reaches of the river was analyzed. On the basis of the analysis of temporal and spatial monitoring data, a comprehensive assessment of the environmental status of the Inhulets river (Ukraine) waters by hydrochemical indicators was carried out. The study performed a comparative analysis of the river water quality assessment using different methods: an integrated assessment based on the calculation of water pollution indexes, pollution rate. A result of the evaluation of water quality in certain classes: in terms of ammonium ions and BOD5 – III quality class, the water is slightly polluted; phosphate content – V quality class, water is very low in the bottom; according to the content of suspended solids, in phosphates and BOD5 – III class of water quality, water is polluted; by a concentration of chlorides – V class of quality, degree of purity – very dirty; the value of suspended solids and chlorides – III class; in terms of the sulfate content – IV class. In general, the very excessive concentration of substances in the middle course remains stable, the environmental state is poor (quality class IV).
5
Content available Material Flow Analysis of Waste Electrical and Electronic Equipment in Ukraine
Hlavatska Lilia, Ishchenko Vitalii, Pohrebennyk Volodymyr, Salamon Ivan
Journal of Ecological Engineering
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2021
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Vol. 22, nr 9
198--207
EN
The composition of widespread electronic devices (mobile phone, computer mouse, keyboard, web-camera, monitor) was studied by manual dismantling. The material flow analysis was conducted for e-waste components. For the case study of Ukraine, five devices under investigation contain over 4 thousand tons / year resources. Most of them (first of all, plastic and metal) can be easily recovered. The content of chemical elements in the components of the electronic devices was determined by X-ray fluorescence analysis. Taking into account the mass of electronic waste generated in Ukraine, the resource potential of metals was estimated. Most of metals are concentrated in mobile phones and monitors (about 2000 tons/year). Apart from common metals, silver, molybdenum, vanadium, rubidium, zirconium, antimony, yttrium, rhodium, bismuth, and gallium were also found.
6
Content available Methods of Soils Pollution Spread Analysis: Case Study of Mining and Chemical Enterprise in Lviv Region (Ukraine)
Dzhumelia Elvira, Pohrebennyk Volodymyr
Ecological Engineering & Environmental Technology
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2021
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Vol. 22, iss. 4
39--44
EN
This study is dedicated to the assessment of the heavy metal pollution of soil by determining the category of soil contamination due to the activities of mining and chemical enterprise. The X-Ray Diffraction method was used experimentally to determine the qualita-tive and quantitative composition of heavy metals and other inorganic elements in samples, soil pollution with heavy metals. Main sources of heavy metals in industrial waste are identified. The environmental pollution with some heavy metals (Sr, Cr, Pb, Zn, Cu, Mn) was assessed and exceeded the MPC. The ecological situation of soil contamination with heavy metals near tars on the study area territory is estimated in the category from permissible pollution to hazardous pollution. Soil near the phosphogypsum dump is classified as an acceptable, moderately dangerous, and dangerous category of soil pollution. It was established that at a distance of 20 m from the tailings the soils belong to the dangerous category of soil, closer to the tailings – to moderately dangerous. The value of the concentration coefficient indicates the activity of leaching processes (Cc < 1) and accumulation (Cc > 1) of substances in the genetic horizons of the soil. It is necessary to forecast the state of the environment in the area of influence of these enterprises to develop effective means of ensuring environmental safety.
7
Content available remote Electromagnetic Pollution: Case study of energy transmission lines and radio transmission equipment
Przystupa Krzysztof, Vasylkivskyi Igor, Ishchenko Vitalii, Pohrebennyk Volodymyr, Kochan Orest
Przegląd Elektrotechniczny
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2020
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R. 96, nr 2
52--
EN
General characteristics of electromagnetic pollution in towns is analyzed. Health statistics for people living under the influence of electromagnetic radiation is analysed. The electromagnetic pollution is measured for the case studies of energy transmission lines and radio transmission equipment in Ukraine. The induction of magnetic field near overhead power lines is found in the range of 5.5–10.5 μT while being 5 times less at the distance of 50 m. Also, strong dependence of electromagnetic field strength on the distance from radio transmitters is proved.
PL
W artykule analizowana jest ogólna charakterystyka zanieczyszczenia elektromagnetycznego w miastach. Pokazano statystyki zdrowotne osób żyjących pod wpływem promieniowania elektromagnetycznego. Zanieczyszczenie elektromagnetyczne mierzone jest dla przykładów linii przesyłowych energii i urządzeń transmisji radiowej na Ukrainie. Indukcja pola magnetycznego w pobliżu napowietrznych linii energetycznych znajduje się w zakresie 5,5–10,5 μT i jest 5 razy mniejsza w odległości 50 m. W artykule pokazano również silną zależność natężenia pola elektromagnetycznego od odległości od nadajników radiowych.
8
Content available remote Assessment of the Electromagnetic Radiation Level of vehicles, computers, household appliances, personal care products, mobile phones and smartphones
Przystupa Krzysztof, Pohrebennyk Volodymyr, Mitryasova Olena, Kochan Orest
Przegląd Elektrotechniczny
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2020
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R. 96, nr 1
190--193
EN
The results of experimental studies are presented the level of electromagnetic radiation of vehicles, computers, household appliances, personal care products, mobile phones and smartphones.
PL
Wyniki badań eksperymentalnych przedstawiają poziom promieniowania elektromagnetycznego pojazdów, komputerów, sprzętu gospodarstwa domowego, produktów higieny osobistej, telefonów komórkowych i smartfonów.
9
Content available Evaluation of the Pollution Level of Surface and Waste Water
Pohrebennyk Volodymyr, Kulyk Mykhailo, Bihun Iryna
Journal of Ecological Engineering
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2020
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Vol. 21, nr 5
180--188
EN
The household and industrial wastes that have been accumulated during the last 40–50 years organized and spontaneous landfills (garbage dumps) pollution of the natural water bodies near locations. As results of precipitation and solar irradiation, the drainage of water formation occurs; such waters are polluted with harmful and toxic ingredients. The known indices of pollution of industrial and surface waters as well as the technique for determining the class of danger posed by solid household wastes were analyzed. The application of this technique to liquid wastes is suggested, since the change of aggregate state must not restrict its application; on the contrary, a new useful unexpected result can emerge with this. A rather simple dimensionless index of toxicity was chosen on the basis of the following examples: composition of the drainage waters of a specific landfill, content of harmful ingredients in them, excess ratio of their maximum permissible concentration. Such an index takes into account the maximum permissible concentration of the harmful substance in the ground, as well as the fraction of the harmful ingredients in the total mass of the liquid waste. Using the dimensionless index of toxicity, the bar charts were drawn, from which the sequence of removal of harmful components from the liquid mixture can be determined, starting with the component with the least value of dimensionless index of toxicity which characterizes the most dangerous component.
10
Content available Aspects of Electrochemically Activated Water Solutions Practical Use
Ptashnyk Vadym, Bordun Ihor, Pohrebennyk Volodymyr, Kida Małgorzata, Ziembowicz Sabina, Koszelnik Piotr
Journal of Ecological Engineering
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2020
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Vol. 21, nr 7
222--231
EN
This article analyzes the issue of developing ecologically safe technologies for obtaining the electrochemically activated water solutions for ensuring the rational use of water resources and reducing the volume of discharges of harmful substances into the environment. The necessity of controlling the depth of electrochemical activation for obtaining ecologically safe industrial water solutions and reducing the energy consumption of this process was substantiated. The ecological advantages of electrochemically activated solutions application were presented as compared to the chemical solutions in the technologies of activated carbon surfaces modification to increase the supercapacitors electrode specific capacitance, preparation of the gypsum plaster mixing water to improve the physicochemical properties of gypsum stone, as well as efficiency of use of disinfectant based on the electrochemically activated water solutions solutions, approbated in the sugar production industry. It was experimentally confirmed that the depth of electrochemical activation significantly affects the efficiency of practical use of activated water solutions. The proposed theoretical models allow prediction of the activation modes for solving specific problems.
11
Content available Simulation of the Impact of Waste Batteries on Ecosystem Reliability
Petrov Oleksandr, Pohrebennyk Volodymyr, Shybanova Alla, Ruda Mariia
Decision Making in Manufacturing and Services
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2020
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Vol. 14, no. 1
81--90
EN
To assess the impact of not just the battery as such but its multi-element composition on the state of the environment, a new approach is proposed through the determination of the reliability of ecosystems, which makes it possible to obtain quantitative indexes of the stability and losses of natural ecosystems. These data can be used as indicators of the state of the environment, and hence as the assessment of an environmental component that is important for determining the actual impact of the multi-element composition of batteries. On the basis of such indicators, which can be obtained using the SimaPro software, it is possible to calculate thresholds beyond which negative phenomena occur, as well as to predict and simulate situations, to carry out the mapping of sources of risks, to monitor changes, and this will allow identifying the causes of these changes or determining the factors that slow down or retard the approach of ecosystems to a critical state, i.e. to develop preventive measures to avoid disasters. The eco-indicator 99 is one of the methods that allows us to accept one estimate for the whole product - the so-called ecological index. It is the sum of all individual eco-points or partial indexes for all life-cycle processes. The computational procedure is carried out by summing up the results of weighing the phases of the life cycle.
12
Content available Environmental Monitoring of Soils of Post-Industrial Mining Areas
Pohrebennyk Volodymyr, Koszelnik Piotr, Mitryasova Olena, Dzhumelia Elvira, Zdeb Monika
Journal of Ecological Engineering
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2019
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Vol. 20, nr 9
53--61
EN
The ecological situation in most mining regions of Ukraine is critical, and the closure of unprofitable mining enterprises, mines and cuts creates the environmental problems associated with significant changes in the geological and hydrological environment. The purpose of the work is the environmental monitoring of heavy metals in the soils in the territory of Rozdil State Mining and Chemical Enterprise (SMCE) "Sirka" at the stage of liquidation.The object of the study involves the heavy metals in soils in the territory of Rozdil SMCE "Sirka". The subject of the study is to evaluate the content of heavy metals and migration aspects in soils. In this work, the parameters of soil pollution with heavy metals were determined experimentally. On the example of Rozdil SMCE "Sirka", the main problems of the monitoring system of the territory of the mining and chemical enterprise at the stage of liquidation were proven. The influence of the mining and chemical enterprise on the state of environmental pollution (soil, water environment, and waste management status) was also assessed. The ecological balance of the territory is violated due to the fact that the elimination of negative technical manifestations of the enterprise activity was considered unprofitable for a long time. The development of monitoring techniques for man-made landscapes, along with the development of methods for diagnosing the specifics of their functioning and technologies for reclamation, is an integral part of multidisciplinary research on environmental imbalances, which is caused by the transformation of natural landscapes into man-made. The necessity of developing the information-analytical system for the monitoring of the Rozdil State Mining and Chemical Enterprise (SMCE) "Sirka" territory at the stage of liquidation was substantiated. It was established that the monitoring of the territory of the mining and chemical enterprise at the stage of liquidation will allow increasing the level of environmental safety of the territory of the enterprise and the surrounding settlements. Monitoring is one of the main stages of the liquidation and reclamation process and should be carried out at all stages of liquidation. In addition to the monitoring system in the process of liquidation and in the post-reclamation period, the liquidation project should include an environmental analysis of the enterprise activities and environmental forecasting.
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