Wyniki wyszukiwania - BazTech

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Evaluation of ecological and economic efficiency of investment in water management and land reclamation projects

Kovalenko Pyotr, Rokochinskiy Anatoliy, Volk Pavlo, Turcheniuk Vasyl, Frolenkova Nadiia, Tykhenko Ruslan

Journal of Water and Land Development

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2021

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no. 48

81--87

EN

The article is devoted to the actual scientific and practical problem of improving methodological and methodical approaches to the evaluation of design solutions in the water management and land reclamation industry based on the ecological and economic principles in conditions of uncertainty. The current stage of the development of the water management sector in Ukraine is characterized by a combination of past negligence and the present energy, food and water crises, as well as global climate change. To solve these problems, it is necessary to reform organizational-economic relations in the industry, including new sources and forms of financing for water management and land reclamation projects, introduction of new environmentally advanced technologies, and the improvement of the existing ecological and economic evaluation of investments. Based on scientific and methodological recommendations used for evaluating the effectiveness of investment in various spheres of economic activity, the authors developed and implemented an improved methodology for the evaluation of water management and land reclamation projects. It is based on methodological approaches that cover such elements as the variety of options, changes in the value of money over time, specific project implementation environment, including the impact of weather, climate and environmental factors on project performance, multilevel and gradual evaluation of a project against specific criteria and according to stages of the project cycle. The method was tested during the reconstruction of a rice irrigation system in the steppe zone of about 3000 ha in Ukraine. Economic results, namely the deterministic payback period and investment return index confirm that the proposed mechanism, unlike the traditional one, increases the economic and environmental feasibility of water management and land reclamation projects. Therefore, it stimulates investment in the land reclamation sector.

2

Implementation of modern approaches to evaluating the effectiveness of innovation for water treatment in irrigation

Rokochinskiy Anatoliy, Bilokon Vyacheslav, Frolenkova Nadiia, Prykhodko Nataliіa, Volk Pavlo, Tykhenko Ruslan, Openko Ivan

Journal of Water and Land Development

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2020

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no. 45

119--125

EN

The geographical location and climatic conditions of Ukraine cause the active development of land reclamation, as it enables to ensure stable and high yields. The complexity of forecasting in this area, namely the dependence of the results on the changing weather and climate conditions, does not allow to effectively use the standard instruments for justifying the investment for agricultural and land reclamation innovation. The necessity of improving methodological approaches to evaluating the effectiveness of investments in projects in the field of agricultural production and land reclamation was substantiated. The proposed approaches were tested on the advanced technology of water treatment in irrigation based on using a vibrating gravitation filter enabling to perform simultaneously the processes of water treatment and filter element regeneration. The obtained results clearly show that the advanced technology of irrigation water treatment and the developed for this technology design of the vibrating gravity filter are cost-effective. The current payback period for irrigation projects when using the purified water under this advanced technology is 5 years. It is the same as for the irrigation projects when using clean irrigation water. Thus, our proposed approaches to the evaluation of investments in new water treatment technologies applied in irrigation enable to adapt the modern methodology of analysis of economic and investment efficiency of projects to the domestic needs of agricultural production, namely to take into account the impact of changing weather and climate conditions on the resulting economic parameters.

3

Forecasted estimation of the efficiency of agricultural drainage on drained lands

Rokochinskiy Anatoliy, Volk Pavlo, Pinchuk Oleg, Turcheniuk Vasyl, Frolenkova Nadiia, Gerasimov Ievgenii

Journal of Water and Land Development

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2019

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no. 40

149--153

EN

In the article we developed the design principles and implementation of a complex model and optimized the design parameters of drainage. The study was based on the implementation of interconnected structural and technological forecasting simulation and optimization model blocks, which in turn allowed to justify the optimal design parameters and drainage considering multiple natural and agronomic conditions and reclamation facilities. Example of evaluating the performance of drainage on drained lands was made for the conditions of a real project, implemented on lands of agricultural holding “May Day” located within of drainage system “Ikva” in the Rivne region. For the object conditions (average decade formation conditions of the drainage flow module for growing perennial grasses, winter cereals and potatoes) the estimated duration of the growing season was 214 days (100%), of which the total duration of drainage was 60% and included different levels of efficiency: 39% – ecological, 15.5% – technological and 5.5% – economic. The duration of its critical operations (forming module drainage flow exceeds the design of its value) does not exceed 5%. Thus, this approach enables the assessment of drainage with predetermined or specified parameters in the construction or renovation of drainage systems on different levels of effectiveness. It can be effectively used in the overall complex predictive and optimization calculations to substantiate the design and parameters of agricultural drainage, taking into account the variability of natural agrotechnical and reclamation conditions of a real object.

PL

W pracy rozwinięto zasady projektowania i wdrażania złożonego modelu oraz zoptymalizowano parametry projektowe drenażu. Badania oparto na wdrożeniu wzajemnie powiązanych symulacji strukturalnych i technologicznych oraz na optymalizacji bloków modelowych, co pozwoliło uzasadnić optymalne parametry projektowe z uwzględnieniem wielu czynników przyrodniczych, rolniczych i urządzeń melioracyjnych. Jako przykład oceny działania systemu drenarskiego przyjęto rzeczywisty projekt wdrażany na ziemiach przedsiębiorstwa rolniczego „May Day” usytuowanego w systemie drenarskim „Ikva” regionu Równe. W warunkach panujących na badanym obiekcie (dekadowe średnie warunki przepływu wód w uprawie wieloletnich traw, zbóż ozimych i ziemniaków) oszacowana długość sezonu wegetacyjnego wynosiła 214 dni (100%), przy czym przez 60% tego czasu woda była drenowana. Efektywność zależała w 39% od czynników ekologicznych, 15,5% – technologicznych i 5,5% – ekonomicznych. Długość operacji krytycznych (przekraczających wartość planowaną) była mniejsza niż 5%. Prezentowane podejście umożliwia ocenę drenażu ze wstępnie ustalonymi szczegółowymi parametrami w warunkach budowy lub renowacji systemów odwadniających o różnym stopniu wydajności. Może być zatem wykorzystane w złożonych obliczeniach prognostycznych i optymalizacyjnych jako wsparcie projektów rolniczego drenażu z uwzględnieniem zmienności naturalnych warunków agrotechnicznych i melioracyjnych konkretnego obiektu.