Перегляд за Автор "Madzhd, Svitlana"

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Current Trends in Ensuring the Sustainable Development of Aviation
(2021) Cherniak, Larysa; Madzhd, Svitlana
The modern aviation industry is developing rapidly, thus creating many benefits and opening new opportunities for society. But, at the same time, the development of this industry creates stress for all the environment components, to a greater or lesser extent. Importantly, thedevelopment of aviation industry negatively affects people and other living organisms not onlylocally but also globally. Therefore, the issues of ensuring the sustainable development of the modern aviation industry are extremely relevant and require complex and targeted actions
Determination of the dependence of the plant growth characteristics on the concentration of petrochemiscals in the soil
(2021) Cherniak, Larysa; Mikhyeyev, Oleksandr; Madzhd, Svitlana; Lapan, Oksana; Dmytrukha, Tetyana; Petrusenko, Valentyna
The peculiarities of sanitary and hygienic rationing of the oil products content in environmental components were analyzed. It was established that the general ecological situation in our country and abroad is unsatisfactory and the issue of finding modern methods of standardizing the quality of environmental components, which would cover the indicators and criteria of their composition and properties, is becoming increasingly urgent. Together, it would ensure ecologically sustainable development of the biosphere in all hierarchical levels of its organization. It was established that such an assessment system does not exist today and therefore, there is no generally accepted universal method for assessing the quality of the environmental components. For this purpose, it is necessary to develop a methodology, in particular a method of biotesting, which will provide a generalized qualitative assessment of the ecological state of the environment, without being based on the quantitative characteristics of the MPC. The possibility of applying a new method of phytotesting of soil that was artificially contaminated with different types of petrochemicals in different concentrations per unit volume of soil using flax seedlings (Linum usitatissimum L.) was investigated. The growth characteristics of the test plants grown on artificially contaminated soil with petroleum products were presented. In the course of research, the possibility of studying the effect of petrochemicals on plants directly in artificially contaminated soil was confirmed. On the basis of the analysis of the obtained results, it was found that when the soil is contaminated with oil products, the aviation fuel has a greater impact on the shoots, whereas gasoline and diesel fuel have a lower impact on the roots in lower concentrations. At higher concentrations, their depressant effect is almost equal
Development of a procedure for determining the basic parameter of aquatic ecosystems functioning – environmental capacity
(2019) Isaienko, Volodymyr; Madzhd, Svitlana; Pysanko, Yana; Nikolaiev, Kyrylo; Bovsunovskyi, Yevhen; Cherniak, Larysa
Дослiджено основний параметр функцiонування гiдроекосистем – екологiчну ємнiсть. Параметр є ефективним показником порушення структурно-функцiональних змiн техногенно трансформованого водного об’єкту. Застосована адаптована концептуальна модель системи iндикаторiв: “Дiї – Стану – Наслiдкiв”. Вiдповiдно до розробленої класифiкацiї системи iндикаторiв, баланс екологiчної ємностi гiдроекосистеми виступає частиною iнтегрального показника стану водної екосистеми, як наслiдок дiї екзогенних факторiв антропогенного походження. Завдяки застосуванню iнтегральних систем iндикаторiв стало можливим надати не лише якiсну, а й кiлькiсну характеристику екологiчної ємностi. В якостi об’єкта дослiджень обрано гирлову дiлянку середньої рiвнинної рiчки, яка виступає найбiльш репрезентативною її складовою, та вiддзеркалює наслiдки антропогенного впливу якi вiдбуваються в басейнi рiчки. Враховуючи iєрархiчнiсть рiвнiв розвитку водних систем, дослiдження стану середнiх рiчок на локально- му рiвнi дозволить розробити водоохороннi заходи, якi сприятимуть покращенню якостi великих рiчок. Розроблена методика може бути успішно адаптована для iнших техногенно змiнених рiчок рiвнинних територiй. Результати проведених математичних роз рахункiв представленi у виглядi графiкiв залежностi екологiчної ємностi та техноємностi вiд численних параметрiв функцiонування гiдроекосистеми. Показано динамiки змiн цих параметрiв за 2009–2017 роки. Результати дослiдження свiдчать, що бiота адаптувалась до певного рiвня техногенного забруднення i в перiод 2012–2016 року екологiчна ємнiсть була стабiльною (27–37), що є оптимальними умовами iснування гiдроекосистеми. Узагальнена оцiнка змiн за весь дослiджуваний перiод дає пiдстави стверджувати, що вiдбулася втрата екологiчної ємностi (знижується до 13,3) внаслiдок понаднормативного техногенного впливу на рiчкову гiдроекосистему, i це створює передумови для формування техноємностi. Як наслiдок, фiксується зниження рiвня залишкового екологiчного резерву, необхiдного для вiдновлення техногенно змiненої гiдроекосистеми рiчки The main parameter of hydroecosystems functioning - ecological capacity - is investigated. This parameter is an effective indicator of disturbance of structural and functional changes in a technogenically transformed water body. An adapted conceptual model of the indicator system was used: ‘Action - State - Consequences’. According to the developed classification of the indicator system, the balance of the ecological capacity of the hydroecosystem is part of the integrated indicator of the aquatic ecosystem state as a result of the action of exogenous factors of anthropogenic origin. The use of integrated indicator systems makes it possible to provide not only a qualitative but also a quantitative description of the ecological capacity. The research object was the mouth section of a medium-sized lowland river, which is the most representative of its components and reflects the effects of anthropogenic impacts in the river basin. Given the hierarchy of levels of development of water systems, the study of the state of medium-sized rivers at the local level will allow the development of water protection measures that will improve the quality of large rivers. The developed methodology can be successfully adapted for other technologically modified rivers in the plains. The results of the mathematical calculations are presented in the form of graphs of dependence of ecological capacity and technological capacity on numerous parameters of hydroecosystem functioning. The dynamics of changes in these parameters for 2009-2017 are shown. The results of the study indicate that the biota has adapted to a certain level of temperature
Development of the hydrophytic structure of the bioplateau type for the purification of water bodies from 137Cs
(2022) Lapan, Oksana; Mikhyeyev, Oleksandr; Madzhd, Svitlana; Cherniak, Larysa; Maksimenko, Olena
A floating structure of a bioplateau has been developed for the purification of water bodies from the toxic substances, the biotic component of which is terrestrial plants. Chemically inert floating materials were used as a substrate for the construction of the bioplateau: perlite, expanded clay, granular foam, vermiculite, cork. Substrate testing has shown that granular expanded polystyrene is the most optimal for the usage. The study of different options for seed germination in the design of the bioplateau has shown that its placement on the top of the substrate is the best option. The usage of perlite in combination with granular foam had created an additional capillary effect, due to which the seeds germinated at a faster rate. To optimize the hydrophytic structure a grid was used, which made it possible to increase the overall density of the bioplateau. An algorithm for creating a «rolled» plant that is suitable for transportation and placement in the surface water bodies that require purification from toxic substances has been developed. There was done a comparative study of the effectiveness of purification of the aquatic environment from ions of radiocesium bioplate with wheat plants of different varieties. It is confirmed that the efficiency of sorption of 137Cs ions by terrestrial plants is influenced by the nature and concentration of macrocations in the aqueous medium.
Development of the hydrophytic structure of the bioplateau type for the purpose of phytoremediation
(2021) Mikhyeyev, Oleksandr; Lapan, Oksana; Madzhd, Svitlana; Cherniak, Larysa; Dmytrukha, Tetyana
A floating structure of a bioplateau has been developed for the purification of water bodies from the toxic substances, the biotic component of which is terrestrial plants. Chemically inert floating materials were used as a substrate for the construction of the bioplateau: perlite, expanded clay, granular foam, vermiculite, cork. Substrate testing has shown that granular expanded polystyrene is the most optimal for the usage. The study of different options for seed germination in the design of the bioplateau has shown that its placement on the top of the substrate is the best option. The usage of perlite in combination with granular foam had created an additional capillary effect, due to which the seeds germinated at a faster rate. To optimize the hydrophytic structure a grid was used, which made it possible to increase the overall density of the bioplateau. An algorithm for creating a "rolled" plant that is suitable for transportation and placement in the surface water bodies that require purification from toxic substances has been developed
Ecological assessment of groundwater at the airport zone
(2022) Madzhd, Svitlana; Cherniak, Larisa; Mikhyeyev, Oleksandr
In complex natural, technogenic and anthropogenic conditions, when at the same time the quality of water directly in the underground part of the Hydrosphere or through other components of the environment is affected by various factors of pollution, the assessment of the quality of underground water takes on a specific character. Carrying out constant monitoring of the state of the groundwater, comparing and assessing the compliance of pollutant concentrations with established standards makes it possible to assess the actual state of groundwater in the airport area and adjacent territories for the content of pollutants. The main sources of groundwater pollution as a result of the operation of aviation equipment are rainwater and meltwater, emergency discharges of petrochemicals, fuel and lubricant storage farms. The purpose of the work: to carry out an ecological assessment of the quality of groundwater at the area of the International Airport Kyiv (Zhulyany) according to the main hydro-ecological indicators. The water quality of five drinking wells at different distances from the runway of the Kyiv airport zone was analyzed.
Environmental legislation of Ukraine: towards the european union approaches
(2024) Yakymenko, Igor; Dotsenko, Olena; Negretova, Victoria; Pobuta, Oleksandra; Grychenko, Maryna; Madzhd, Svitlana
Environmental legislation of Ukraine is an important part of national legislation and based on fundamental principles of sustainable development. These include some particular articles of the Constitution (the main law) of Ukraine (VRU, 1996), the Law of Ukraine on Environmental Protection (VRU, 1995), relevant articles of Code of Ukraine on Administrative Offenses (1984) and Criminal Code of Ukraine (VRU, 2001) and many others. Starting from 2014, Ukraine began the implementation of key elements of EU legislation in terms of the EU – Ukraine Association Agreement (AA, 2014). And according to the Cabinet of Ministry of Ukraine, currently Ukraine implemented about 80% of European Union legal norms into national legislation as for the environmental protection (CMU, 2024). Good example of effective implementation of the EU laws into the legislation of Ukraine is an adapting a new Law of Ukraine on Waste Management (2022), which introduces European principles and European hierarchy in waste management into Ukrainian legislation.
Environmental sustainability: biotic potential of hydroecosystems
(2024) Madzhd, Svitlana; Nychyk, Oksana
The intensive inflow of pollutants into ecosystems necessitates the development of a methodology for assessing the state of ecosystem reliability in order to implement measures aimed at ensuring their environmental sustainability. The paper studies the distribution and redistribution of anthropogenic pollutants in hydroecosystems. The reaction of living organisms to the impact of pollutants is determined using the method of mathematical modelling. Changes in the self-regulation mechanism are described on the example of interconnected components of the Dnipro basin system: «small river - medium river - large river». It has been established that the constant trophic connections between the rivers of the Dnipro basin provide a homeostatic mechanism for the development of a single integrated basin system at different levels of hierarchical development. The obtained results allow us to consider the complex system of the basin as a set of hierarchical structures united by hydrographic interconnections and functionally.
Examining the efficiency of electrochemical purification of storm wastewater at machine-building enterprises
(2018) Мaksimenko, Оlena; Pancheva, Natalia; Madzhd, Svitlana; Pysanko, Yana; Briankin, Оlena; Tykhomyrova, Tatiana; Hrebeniuk, Tatiana
The composition of contaminated stormwater from the territory of an engineering enterprise is investigated. It was found that the territory is unevenly polluted, and among the pollution of surface runoff water from the territory adjacent to the production workshops, copper ions prevail up to 1.1 mg/dm3, zinc up to 2.0 mg/dm3, nickel up to 1.6 mg/dm3, chromium 0.93 mg/dm3 and lead up to 5.0 mg/dm3. It has been proved that the following factors significantly affect the removal of metal ions during electrocoagulation treatment: flow rate of wastewater entering the treatment for purification; the time of settling of wastewater after and the current density during electrolysis. On the basis of experimental studies, graphical dependences of the purification efficiency on the current density and water settling time were constructed. The optimal parameters of the wastewater treatment process have been determined, which ensure a sufficiently high efficiency of water purification from heavy metal ions. ions (up to the values of the discharge standards) at an acceptable power consumption. It was found that the best conditions for nickel and lead precipitation are a current density of 50 A/m3 and a settling time after electrocoagulation for 9 hours. Optimal conditions for copper and zinc precipitation are 12 hours, and reducing the chromium concentration to safe concentrations is possible at a current density of 10 A/m3 and a settling time of 4 hours. It was found that the efficiency of of metal ions purification significantly increases with the increase in current and settling time, in addition, the efficiency of settling is 1.4-3 times higher than the increase in current density
Investigation of the influence of hyperthermia and soil Pollution with the petrochemicals on test objects using the Method of mathematical planning
(2022) Cherniak, Larysa; Petruk, Roman; Mikhieiev, Oleksandr; Madzhd, Svitlana; Petruk, Galyna
To increase the effi ciency of using methods for assessing the level of soil contamination by oil products against the background of the infl uence of other factors. Methodology. The authors consider the possibility of using bioassays to study the impact of several stressors on the test system. Based on the theory of experiment planning, a methodology for researching the infl uence of hyperthermia and soil contamination with kerosene on the growth parameters of test objects was developed. On the basis of the obtained experimental data, regression models were built which allow fi nding a numerical estimate of the impact of stress factors on changes in the characteristics of the test object. Findings. It was determined that, as a rule, in order to assess the infl uence of stressful factors when normalizing the assumed levels of their infl uence on humans and ecosystems using biotesting methods, such an assessment is carried out for individual factors. But, in the real conditions of existence of plants and organisms, they are exposed to the simultaneous infl uence of many factors that can interact non-additively, i.e. as antagonists or synergists. In order to increase the effi ciency of the use of methods for biotesting of the level of soil contamination by oil products against the background of the infl uence of other factors, the authors applied one of the methods of mathematical planning of the experiment. It was concluded that the eff ect of one factor depends, to a certain extent, on the eff ect of the other factor, the eff ect of which was studied in the work. The fact of the non-additive eff ect of the factors used in the experiment makes it possible to recommend the use of test objects in the practice of monitoring the condition of soils in technogenically loaded territories previously exposed to the action of hyperthermia. Originality. The toxic eff ect of the petroleum product depends, to a certain extent, on the eff ect of hyperthermia. Pretreatment of the test objects with a hyperthermic factor in a hormesis dose had a preventive eff ect, increasing the resistance of the test objects to the eff ect of the petroleum product. Practical value. The fact of the non-additive eff ect of the factors used in the experiment makes it possible to recommend the use of test objects previously exposed to the action of hyperthermia for monitoring the condition of soils in technogenically loaded territories.
Methodology for determining the physical parameters of wastewater
(2020) Isaenko, Volodymyr; Frolov, Valery; Madzhd, Svitlana; Mashkov, Oleh
Methodology for determining the physical parameters of wastewater discharge into surface water bodies of different types has been developed, which allows to determine the precipitation kinetics of wastewater impurities and their dependence on concomitant factors. The proposed methodology allows, based on the hydraulic size, to determine the deposition rate of particles of different size and shape contained in the wastewater and to determine the factors that affect the process of different shapes and masses particles mixing. The algorithm of measures of preliminary sewage treatment by enterprises before discharge into surface reservoirs is offered in the work. The implementation of the proposed algorithm will determine the impact of wastewater on the quality and chemically-biological composition of surface water bodies of Ukraine, as well as significantly improve the quality characteristics of surface and groundwater, which are water supply source for all residents of cities and towns of Ukraine
Modern means of assessing the impact of emergencies on the environmental condition of the ground layer of atmosphere
(2021) Turevych, Anastasiia; Madzhd, Svitlana; Cherniak, Larysa; Pavlyuk, Anatoliy; Ojeh, Vincent
The problem of emergencies will not leave humanity as long as it exists, and therefore it is necessary to at least create conditions under which it is possible to reduce the risks of injuries, diseases and deaths of people who are in the emergency zone. This can be achieved by raising awareness of the nature of the emergency, the hazardous substances that are released in connection with it. Theoretical analysis of various remote means of assessing the impact of emergencies of man-made areas on the ecological state of the atmospheric air of the surrounding areas. It has been found that the use of remote sensing equipment greatly simplifies the procedure of operational monitoring of the environment during emergencies, as well as contributes to the health of professionals. A comparison of different remote means of environmental monitoring of air quality was performed: In particular, stationary automatic stations, mobile automatic stations, probes, and unmanned aerial vehicles (UAVs) were compared. It is proposed to use UAVs as remote means of operational monitoring of air quality. The functional scheme of UAV system implementation for the needs of operative ecological monitoring is offered. The legal features of the use of unmanned aerial vehicles as remote means of monitoring air quality during emergencies are analyzed
The evolution of radioresistance
(2022) Mikhyeyev, Oleksandr; Lapan, Oksana; Madzhd, Svitlana
The relationship between the information capacity of the eukaryotic genome and the potential for epigenetic variability is shown. The progressive evolution of the genome is due to the need to increase the information capacity of the genome and improve genetic reliability systems to ensure a stable operation of the growing genetic apparatus of prokaryotic organisms
The study of technogenically transformed water ecosystems within аviation facilities operation area
(2018) Madzhd, Svitlana; Pysanko, Yana
The object of the research is technogenically transformed aquatic ecosystem which helps to develop water protection measures and ensure the ecological safety of technogenically conditioned ecosystems of rivers passing through urban areas within aviation repair facilities. The conceptual model of aquatic ecosystem consists of the Nyvka and Irpin rivers, both aquatic ecosystems belong to the Dnieper basin, and the permanent trophic connection makes it possible to consider them as the conceptual majority of interconnected constituents. The aim of the work: to study main features of the formation of technogenically conditioned water ecosystems of small and medium rivers due to anthropogenic influence of the aviation repair facilities. Methods: were used a biotesting method, a method of the complex water quality assessment, a substrate biological transformation model based on the law of non-linear mathematical model of Mono and Michaelis-Menten. The technogenic impact index for every pollutant was calculated. Results: it was found the content of heavy metals, oil products, nitrogen, nitrite nitrogen, nitrate nitrogen in the surfacewater of the Nyvka and Irpin rivers. Investigated samples of the Nyvka water were of V water quality class and the Irpin water was of I V water quality class. The hydrochemical analyze of the Irpin river has shown that limitation factors affecting the water quality, cause the disturbance of the self-remediation ability of the water ecosystem. Was shown changes of contaminant concentration in the Irpin River current. Discussions: obtained results of the modeling of the Irpin water self-remediation from contaminants are represented that the constant for contamination agents such as nitrogen, nitrite nitrogen, nitrate nitrogen and Cu2+ have negative values. The predominating negative values indicate, that in the aquatic environment selfremediation processes have not time to occur, as water is being very active contaminated from the mowings, neighboring agricultural lands.
The usage of plant test systems for the determination of phytotoxicity of contaminated with petroleum products soil
(2021) Cherniak, Larysa; Mikhyeyev, Oleksandr; Madzhd, Svitlana; Lapan, Oksana; Dmytrukha, Tetyana; Korniienko, Iryna
The level of phytotoxicity of the soil samples artificially contaminated with the aviation kerosene was determined in the work. The dependences of the growth characteristics of the plant test system (flax) on the excess of the approximate permissible concentrations (APC) of the oil product concentration in the soil were identified. The change in the mass of raw material depending on the level of aviation kerosene contamination of soil samples was determined. A decrease in the plant growth activity with an increase in the content of aviation fuel in the soil was established. It was found that there is a hormesis effect at certain concentrations of aviation kerosene in the soil. The comparison of the concentration dependences of the action of petroleum products on the growth rates of seedlings and their dependence on the distance to the source of pollution allowed in the latter case to conduct a kind of “dosimetry” on exposure concentrations when the petroleum product concentration was not determined
Water Purification from Ions of Cadmium (II) Using a Bio-Plateau
(2019) Lapan, Oksana; Mikhyeyev, Oleksandr; Madzhd, Svitlana; Dmytrukha, Tetyana; Cherniak, Larysa; Petrusenko, Valentyna
The study was conducted with the purpose of experimentally developing the method of water purification from ions of cadmium (II) using a new design of a bio-plateau, which is based on the use of terrestrial plants. In order to construct the bio–plateau, the following chemically inert floating materials were used as the substrate: perlite, expanded clay, granular foam, vermiculite, cork, on top of which the seeds of higher terrestrial plants were placed. The experimental data showed that foam was the best of the tested substrates, and of plants – barley, oats, corn and rye. The constructed bio-plateau was placed into tanks with a solution of cadmium on the 9th day of incubation to study the cleaning efficiency of terrestrial plants on the aquatic environment. Determination of the residual concentration of cadmium was performed with the method of AAC at λ=228.8. As a result, it was found that rye showed the best sorption properties of the tested plants. The influence of additional aeration and pH of the medium on the degree of water purification was established. The highest treatment efficiency was observed in the variant of a bio-plateau with aeration and at a pH of 8–9. The study shows the possibility of using terrestrial plants for the phytoremediation of water bodies
Сomprehensive assessment of the degree of wastewater pollution of civil aviation enterprises
(2020) Isaienko, Volodymyr; Madzhd, Svitlana; Frolov, Valerii; Lapan, Oksana
An assessment of the efficiency of treatment facilities of civil aviation enterprises was made. The degree of sewage pollution of aviation enterprises was estimated. It was found that the normative values exceeded the normative values of HSC, BSC5, ammonium nitrogen, nitrates, toxic metal compounds and petroleum products. It is determined that the wastewater of aviation enterprises belongs to a very dirty category in terms of BSC5 and concentrations of mineral nitrogen and petroleum products. According to the content of toxic metals, wastewater is classified as weakly and moderately polluted.