Cycle Economy Research Articles

Associations of strength indices and cycling economy in young adults

Abstract Objectives Cycling economy is associated with muscle strength in athletes. However, the relationship between strength capacity (i.e. maximal and explosive strength) and cycling economy in previously untrained but healthy individuals remains unclear. Therefore, this study aimed to assess the associations between cycling economy and strength performance in a population of recreationally active but untrained healthy individuals. Methods A total of 155 recreationally active individuals (95 males and 60 females) were included. Strength capacity was assessed through an incremental one-repetition maximum test, from which the one-repetition maximum, mean propulsive velocity, and mean propulsive power were derived as strength indices. Cycling economy was assessed using a step protocol on a cycle ergometer and gross oxygen cost and caloric unit cost were determined at submaximal intensities. Results Marginal R2 ranged between 0.013 and 0.062 for the gross oxygen cost and between 0.022 and 0.103 for the gross caloric unit cost, respectively. Greater cycling economy is related to higher strength levels. However, the relationship is relatively weak, explaining only 1.3–6.2 % of the variance in gross oxygen cost and 2.2–10.3 % of the variance in gross caloric unit cost. Conclusions Greater cycling economy in recreationally active males and females is related to higher strength levels (i.e. one-repetition maximum, mean propulsive velocity, mean propulsive power).

Closed‐loop economics in waste management: financing procedures and results

To analyze the procedure and main results of financial support for the implementation of a closed‐cycle economy in the subjects of the Russian Federation.Statistical data and strategic planning documents. The method of analysing the legal and regulatory framework and statistical reporting, as well as the structure of the federal budget, were used. The study is also based on the application of methods of comparison and contrast, grouping, historical and factor analysis.The key role of the state in the creation and effective functioning of the integrated system of solid municipal waste management (MSWM) is determined by the ability to concentrate the necessary financial resources and guarantee uniform standards and requirements for system participants to achieve the stated goals of the closed cycle economy (CCE). Uniform standards and requirements for system participants must be guaranteed to achieve the stated objectives of the closed cycle economy (CCE). This is confirmed by the results of the financing of the TCO management system for 2019–2023, when the federal budget financed activities to the amount of 42.3 billion rubles. For the purposes of the federal EZC project, 8.6 billion rubles were allocated. It is important to ensure off‐budget financing of these activities and modernization of domestic enterprises, for which the use of secondary raw materials is available and economically feasible. The priority of measures to implement CCE in the Russian Federation is financial support for the creation and development of infrastructure for waste collection and recycling.The processes on improvement of the regulatory and legal framework and personnel training are related to the need to implement a "top‐down" approach, which determines the centralisation of decision‐making and the efficiency of attracting extrabudgetary funds dominating in the financial support of the functioning of the TCO management system and implementation of CCE.

Contrasting fungal functional groups influence nutrient cycling across four Japanese cool-temperate forest soils

Understanding soil dynamics and nutrient cycling is crucial for the sustainable management of Japanese forests covering 70 % of the national land area. These forests are dominated by tree species with contrasting traits, influencing soil dynamics differently. We investigated how changes in soil characteristics across different forest stands shift in composition and functioning of fungal communities. Four different forest stands dominated by two different mycorrhizal types were selected: Fagus crenata and Larix kaempferi, representing ectomycorrhizal (ECM) types, and Cryptomeria japonica and Robinia pseudoacacia, representing arbuscular mycorrhizal (AM) types. In total, 62 composite topsoil samples from two depths were analyzed for their physicochemical properties and fungal communities were profiled by DNA sequencing. Ectomycorrhizal fungi dominated soils of Fagus crenata and Larix kaempferi forests, while fungal saprotrophs were more abundant in Cryptomeria japonica and Robinia pseudoacacia forests. Forest stand type rather than soil depth determined the composition and structure of soil fungal communities. Soil pH was positively correlated with abundances of saprotrophic fungi (P < 0.05) and negatively with ECM fungi. Soil C:N ratio was positively correlated, and nitrate was negatively correlated with relative abundances of root-associated fungi, primarily ECM fungi. No links between C nor N stocks with fungal guilds were found across the dataset. Observed links between soil C:N ratio and relative abundances of root-associated fungi and saprotrophs stress the importance of these guilds for influencing nutrient cycling economy across contrasting forest types. The lack of correlation between fungal communities and soil C and N stocks suggests distinct mechanisms driving stocks in these soils.

New Power System Planning and Evolution Path with Multi-Flexibility Resource Coordination

With the continuous development of large-scale wind and photovoltaic power worldwide, the net load fluctuation of systems is increasing, thereby imposing higher demands for power supply assurance and new energy consumption capacity within emerging power systems. It is imperative to establish a quantifiable and efficient model for planning new power systems, to propose an analytical approach for determining optimal evolutionary paths, and to advance research on flexible resource planning across wide areas. In this paper, based on the simplified operating characteristics of multi-type flexible resources, a source-grid-load-storage collaborative planning and evolution analysis framework is established. Secondly, the lowest total cost of the whole life cycle of the system is taken as the optimization goal, the multiple flexible resource investment decisions and production operation constraints of various flexible resources on all sides of the system are considered, and the source-grid-load-storage planning model is established. Then, through the investment decision-making strategy setting of the system in different planning level years, the evolutionary path analysis method of the whole life cycle economy and weighted environmental protection benefit of the system is given. Finally, by taking the sending-end power grid in Gansu Province as an example, a case study is carried out. Calculations of new energy, key channels within the province, energy storage capacity, and load-side response capacity requirements for 2025, 2030, and 2060 are optimized. Based on the above analysis, the optimal evolution path of the power grid is proposed. When considering the weighted benefits of economy and environmental protection, the greater the weight of environmental protection benefits, the greater the possibility of choosing a radical scheme. The model and method proposed in this paper can provide technical reference for the future development planning and evolution analysis of new power systems.

ЦИФРОВІ РІШЕННЯ В УПРАВЛІННІ ЕЛЕКТРОННИМИ ВІДХОДАМИ

The article is devoted to the actual problem of substantiating directions for the use of innovative digital solutions in the management of waste electrical and electronic equipment. The structure of e-waste in developed countries in 2022, which includes IT and telecommunications devices, consumer devices and solar panels, power tools and medical devices, was analyzed and it was found that the largest share is household large-sized appliances (52.7%). Analysis of the dynamics of electronic waste generation per capita in industrialized countries in 2013–2022 showed that in 2022, each resident of Australia – 22.42 kg, Canada – 20.58 kg, Israel – 14.56 kg of electronic waste was generated, Japan – 20.55 kg, Korea – 16.80 kg, Great Britain – 24.63 kg, USA – 21.50 kg, EU – 28.54 kg. Considered the practice of waste management in industrially developed countries. For example, Japan (18–25%) is most actively involved in the processing of electronic waste. The EU has developed a strategy - an action plan for the closed cycle economy, in which the reduction of electrical and electronic waste is a key priority, and a number of proposals have been submitted to promote the repair of goods. The well-founded role of digitalization in the management of electronic waste, which consists in increasing the speed of waste processing and increasing its economic efficiency. The areas of use of innovative digital solutions in electronic waste management are defined, such as: robotics, artificial intelligence and neural networks, the Internet of Things, cloud solutions and data analytics. The advantages of digitization in waste management are disclosed, which includes: automation in waste disposal; improvement of the recycling process; ensuring waste minimization and saving natural resources; creating opportunities to identify problem areas and assess the efficiency of electronic waste disposal; helps to save money, energy and time for waste collection and disposal. The directions for handling electrical and electronic equipment waste have been defined, which consist in preventing the generation of waste, its collection, separation, processing, extraction of secondary raw materials through reuse, recycling and other forms of recovery, which will contribute to the realization of the goals of sustainable production and consumption and the improvement of environmental indicators.

ЕКОНОМІЧНІ ЗВ’ЯЗКИ УКРАЇНИ ТА СКАНДИНАВСЬКИХ КРАЇН – НЕ РЕАЛІЗОВАНИЙ ПОТЕНЦІАЛ СТРАТЕГІЧНОЇ СПІВПРАЦІ ТА ПЛАН ВІДНОВЛЕННЯ УКРАЇНИ

The article examines the state of development of economic ties between Ukraine and Scandinavian countries in such areas as: trade, investment activity, security, humanitarian and financial support of Ukraine, cooperation in other areas. Ukraine imports a fairly wide range of goods from the Scandinavian countries (from land transport, pharmaceutical products, electronics to food and paper), investment activity is quite moderate, the most important thing for Ukraine is the support from the Scandinavian countries in terms of financial support for humanitarian and military projects. projects in the field of energy. The second chapter offers possible directions for deepening cooperation between Ukraine and the Scandinavian countries for reconstruction in the post-war period. In our opinion, the formation of a new economic landscape in Ukraine, in the logic of state leadership (according to the Scandinavian principle), requires the development of a long-term Program for the development of the real sector of the economy (drawn up with the involvement of specialists from the countries of the Northern European Union), which should become a key guiding document for the development of the production activities of state and private enterprises in the post-war period. The following are the components that could become a support for the development of the economy of Ukraine, subject to the involvement of experience, technologies, finances and equipment received from the countries of the Northern European Union: development of the energy sector; development of elements of the closed cycle economy; development of agriculture, forestry and marine industry; infrastructure development; development of human capital. Taking into account the significant level of lag behind Ukraine from developed countries, in practically all spheres of the economy, the countries of the Northern European Union have the potential to provide a powerful scientific and resource base to provide not only consulting support on the formation of a socially-oriented advanced economic model, but also on issues related to economic development, subject to the preservation of the environment and the need to adapt to climate change.

FINANCIAL CHALLENGES AND THREATS OF CIRCULAR ECONOMY LOGISTICS

Introduction. The circular economy is an important component of sustainable development aimed at conserving resources and reducing waste. However, its successful implementation in the field of logistics faces a number of financial challenges and threats. The purpose of the article is to scientifically substantiate the role of circular economy logistics in the formation of effective resource management systems; identify financial problems and threats that can negatively affect the logistics of the circular economy, argue the economic benefits associated with the closed-loop economy, which contribute to the sustainability and efficiency of the use of resources. Results. The economic aspects related to the logistics of the circular economy are considered, the main financial challenges and threats that organizations may face during the transition to the business model of the closed cycle economy are systematized. A methodological approach to the study of financial challenges and threats is proposed, which involves 4 steps, and in particular: at the 1st stage of the study, the leader in the trade of processed raw materials – Germany is determined and the factors that determine the leadership of this country are characterized; at the next stage, possible financial threats that prevent the effective development of circular economy logistics are argued; at the third stage, the relationship between the level of reuse of materials and the exchange rate, interest rates, and inflation rates was investigated using the multiple regression method. On the basis of the results obtained at the first stage, the companies that carry out their activities in the field of circular economy logistics are singled out. Conclusions. The financial challenges and threats discussed provide a basic platform for developing financial management strategies that support the transition to a circular economy in logistics and contribute to achieving sustainable development. Prospects. Prospects for the development of circular economy logistics have significant potential for improving sustainability and efficiency in resource management. This approach offers a transition from the traditional “emission-use” model to a “use-use” model, where waste becomes raw material for new products or processes.

Closed cycle economy is an effective model of country development

A circular economy is a system in which resources are redistributed or reused and waste becomes raw material for further production. This is due to urbanization, climate change, soil pollution, progress, and the use of limited natural resources. To meet growing needs, intensive support and the political development of business remain priority goals for countries around the world. The goal of scientific research is a “closed loop” economic model. In the study, the authors reveal its essence, characteristics, properties, and relevance in the present. The model is closely related to the ecosystem. The article analyzes the interaction between environmental protection and economic efficiency, drawing an analogy with other countries. The objects of the study are the features of the implementation of the circular economy at the macro, meso, and micro levels. The need for and prerequisites for the transition to closed-cycle technologies are studied. In their conclusions and proposals, the authors describe the possibilities of practical use that have a positive effect on the country’s economy.

Case of technology in the methodology of training specialists in the processing of fish raw materials

Introduction. The interdisciplinary and transdisciplinary case technology for training specialists in the processing of marine biological resources is considered. The goal of the work is to modernize case technologies for professional training of specialists in the field of processing marine biological resources into food, feed and other products in the concepts of “Full Cycle Economy” and “Strategy of the Related Sector”.Materials and Methods. In accordance with the program of the special course of additional professional education “Fundamentals of Design under the Marinet program”, a case technology is proposed that contributes to the formation of fundamental knowledge and practical skills in areas related to the production of food, feed and other products with high added value based on fish raw materials. The technology case methodology includes elements of innovative methods of the educational process, the generation of new knowledge, the formulation of intellectual property objects as the results of intellectual activity, and the formation of a team of innovators to solve a specific production problem.Results. A case technology methodology has been developed in the Marinet specialist training system for organizing deep processing of marine biological resources, fishing industry waste, and recycling. The basis of the methodology is a technological case of a new format. The methodology involves home preliminary preparation of students with analysis of cases in the form of presentations, discussions, brainstorming sessions in practical classes in the classroom or in an online format, as well as in the form of events held at the Entrepreneurial Boiling Points of universities or directly in the production conditions of the university’s business partners . An interdisciplinary and transdisciplinary approach to creating technological cases has been developed, taking into account modern trends in the development of vocational education, including the use of artificial intelligence at all stages of classes, which can significantly change the methodology of vocational education in the coming years.Discussion and Conclusions. The developed case technology is an effective tool for versatile training of personnel for a full-cycle innovative economy. It represents part of a new model of continuous professional education, including modern methods of generating new knowledge using AI, blockchain and mediation approaches in organizing group training and can be used in other areas of professional training.

Innovative cation exchange-driven carbon migration and recovery patterns in anaerobic fermentation of waste activated sludge

Despite numerous treatments have been developed to enhance anaerobic fermentation of waste activated sludge, the innovative cation exchange (CE) approach has been rarely reported, little attempt was conducted to revealcarbon source fate. The interphase carbon balance was illustrated to clarify endogenous carbon dissolution, biotransformation,and recovery patterns. By CE-mediated divalent cation removal, almost 34.72 % of particulate carbon sources were dissolved in 2-day treatment, corresponding to soluble carbon content of 1165.58 mg C/L. Most of the originally dissolved carbon sources (58.01–66.81 %) were bio-transformed to volatile fatty acids with high bioavailability, while the further transformation to biogas was inhibited, contributing to recoverable carbon source accumulation. Overall, 21.38 % of total solid carbon sources were recovered through 8-day fermentation, the carbon extraction was implemented by solid–liquid separation with carbon loss of 14.21–22.91 %, manifesting the valid carbon recovery of 85.05–87.96 mg C/g VSS. Such CE-driven carbon recovery provided negentropy benefits in sustainable cycle economy.

Changes in cycling economy and fractional utilization of V̇O2peak during a 40-min maximal effort exercise test with acute hypobaric hypoxia corresponding to 2800 m of altitude.

Peak oxygen uptake (V̇O2peak ) declines by ~7% per 1000 m of increasing altitude, whereas exercise performance seems reduced to a lesser extent. For example, 800-10 000 m track and field performances are decreased by 0.4%-2.4% above 1000 m as compared to below and some studies show similar drops in cycling performance. A greater decline in V̇O2peak than in endurance performance with altitude suggests a higher fractional utilization of V̇O2peak (%V̇O2peak ). Therefore, we hypothesized that the %V̇O2peak is higher with acute hypoxic exposure than near sea level. Sixteen lowlanders (8 women, age: 31 ± 7 years [mean ± SD], body mass: 68 ± 8 kg, V̇O2peak : 60 ± 8 mL min-1 kg-1 ) underwent cycling testing in a hypobaric hypoxic chamber on 6 test days, three conducted at 300 m and three at 2800 m of acute altitude. At both altitudes, V̇O2peak was determined, and during a 40-min all out maximal effort time trial (TT), mean power output (MPO) and mean V̇O2 (%V̇O2peak ) were assessed. V̇O2peak decreased by 11.2 ± 3.0% (p < 0.001), while MPO during the TT declined by 10.7 ± 3.1% (p < 0.001) at 2800 m as compared to 300 m. During the TT, %V̇O2peak was higher at altitude, corresponding to 75.9 ± 4.5% at 300 m and 78.8 ± 4.2% at 2800 m (p = 0.011), and cycling economy (mL O2 kJ-1 ) was poorer (+3.4 ± 2.7%, p < 0.001). The %V̇O2peak was higher during a cycling TT at 2800 m of altitude than near sea level, while cycling economy was poorer. This resulted in a similar reduction in performance and V̇O2peak . Future studies should address the physiological mechanisms underlying the elevated %V̇O2peak .

THE CURRENT STATE OF CIRCULAR ECONOMY DEVELOPMENT IN UKRAINE

The purpose of the article is to study the current state of circular economy development in Ukraine. Currently, the Ukrainian economy functions mainly within the linear economic model, but has already started implementing green economy initiatives, which in particular includes the approaches and goals of the circular economy. The state of waste management in Ukraine was studied, which is divided into three categories of operations: utilization, incineration and removal to specially designated places and objects. In the structure of the total volume of waste by categories of management during the entire analyzed period, disposal in specially designated places and objects takes the largest share. This method of waste management includes burying in the ground or dumping (dumping) on ​​the ground, dumping in specially equipped landfills (in landfills), burying waste in special containers in a mine, etc., that is, it is a common tool of waste management under the linear model. The financial and economic indicators of the development of the sphere of environmental protection in Ukraine are analyzed. The analysis of statistical data shows that the "green" transformation of the national logistics system of Ukraine in the conditions of the circular economy is not effective enough. The statistical analysis proved the need to implement the principles and tools of the circular economy as a concept of sustainable development of the national logistics system in Ukraine. It has been proven that the transformation of production ecosystems can provide enterprises with various competitive advantages. Among the most common strategic advantages are differentiation and cost leadership. However, we argue that the main benefit of ecosystem transformation is to enhance the ability of ecosystems to achieve good triple bottom line outcomes by providing clients with social, financial and environmental benefits. It is worth taking into account the best experience of Finland, which effectively implements practical solutions of the closed cycle economy. The essence of the transition is to rethink value chains and develop new business models.

An analysis of the compliance of the environmental protection and waste management principles with the circular economy principles

Subject. This article discusses Russia's policy in the field of ecology. Objectives. The article aims to justify the need for a transition to cyclical patterns of resource use. Methods. For the study, I used the methods of content and comparative analyses. Results. The article finds that most of the principles of the basic cycle economy are enshrined in Russian legislation, which indicates Russia's readiness to implement sustainable development models. Conclusions and Relevance. The results of the study can be used in the development of federal and regional laws regulating environmental protection relations. The problem of transition to a circular economy is relevant in the context of an increase in the volume of production and consumption waste, as well as a decrease in the availability of natural resources.

Social and Economic Importance of Managing Secondary Resources in Closed Cycle Economy

Social and Economic Importance of Managing Secondary Resources in Closed Cycle Economy

Simultaneous Anodic and Cathodic Formate Production in a Paired Electrolyzer by CO2 Reduction and Glycerol Oxidation.

Electrochemical CO2 conversion is a key technology to promote the production of carbon-containing molecules, alongside reducing CO2 emissions leading to a closed carbon cycle economy. Over the past decade, the interest to develop selective and active electrochemical devices for electrochemical CO2 reduction emerged. However, most reports employ oxygen evolution reaction as an anodic half-cell reaction causing the system to suffer from sluggish kinetics with no production of value-added chemicals. Therefore, this study reports a conceptualized paired electrolyzer for simultaneous anodic and cathodic formate production at high currents. To achieve this, CO2 reduction was coupled with glycerol oxidation: a BiOBr-modified gas-diffusion cathode and a Nix B on Ni foam anode keep their selectivity for formate in the paired electrolyzer compared to the half-cell measurements. The paired reactor here reaches a combined Faradaic efficiency for formate of 141 % (45 % anode and 96 % cathode) at a current density of 200 mA cm-2 .

Optimal fiscal policy in incomplete market business cycle economies

In this paper, we study how a government should set its fiscal instruments in order to provide insurance to individuals and deal with inequality. We quantitatively evaluate the role of public debt and its interaction with progressive income taxation. To guide our assessment, we develop a DSGE model with incomplete markets that embeds two empirical relevant features that have not been considered by the literature: cyclical idiosyncratic risk and the extensive margin of labor supply. We calibrate the model to be consistent with the micro and macro evidence for the US economy. We study the importance of time-varying idiosyncratic risk and labor supply elasticity in determining optimal policies by considering two nested versions of the model that shut down one feature at a time. We find that considering both ingredients together significantly increases the optimal debt to output ratio. In addition, we show that the model generates a positive relationship between public debt and income tax progressivity, consistent to what is observed in the data.

Mapping the strength of agro-ecological lightweight concrete containing oil palm by-product using artificial intelligence techniques

The critical challenge for the cement production industry is the high emission of greenhouse gases. For the sustainability in a cycling economy context civil and environmental engineers should reconsider future generations and should redesign and manufacturing in a safe and eco-friendly alternative. Previous experimental studies have shown, that using oil palm by-product in the production of sustainable lightweight structural concrete, (SLSC) presents good life cycle, land-use efficiency and economic benefits. In this work a formula-based model is proposed to evaluate the strength of SLSC, knowledge-aided modeling based on machine learning methods (e. g., for further development, Multivariate Adaptive Regression Splines (MARS), Gene Expression Programming (GEP), M5P Model Tree (M5P) and Extreme Learning Machine (ELM)) were selected. A comprehensive and reliable experimental record comprising of 449 data of SLSC containing oil palm by-product was utilized to formulate strength predictive models. The proposed models were investigated, in terms of assessment criteria, error measurements, and performance evaluation. The efficiency of the MARS model was shown by comparing its performance with GEP, M5P and ELM. As well as Monte-Carlo simulation approach was conducted to verify the proposed models. Evaluation of the relative importance of effective variables presented that the gravel (11.84%), oil palm waste aggregate (11.38%) and water to binder ratio (11.15%) were the most influential features in the strength prediction of the SLSC. Also, a parametric study is developed to provide robustness of the proposed predictive model. Results of the modeling provide a new understanding of the provision of an auto-estimated strength evaluation of SLSC incorporating oil palm by-product with superiority promotion of knowledge-aided modeling mechanism.

PROBLEMS FACED IN THE AGRO-FOOD SYSTEM OF THE REPUBLIC OF ARTSAKH AND MECHANISMS FOR THEIR SOLUTION

Due to the threats of blockade of the Republic of Artsakh, the importance of food selfsufficiency was presented, based on the features of the closed cycle economy. From the point of view of the activation of the agri-food sector, the importance of having special toolkit in parallel with the general state toolkit in terms of promoting local production was emphasized. Having studied the problems formed in the agro-processing branch, appropriate solutions were proposed regarding the effectiveness of credit policy, the increase of production potential, the use of the latest technologies in the private sector, and the neutralization of factors hindering the competitiveness of domestic production. Based on the specifics of the sector, the mechanisms of comprehensive research were emphasized in order to make the provided support more targeted. From the point of view of achieving qualitative results in the proposed changes, the importance of developing and implementing the appropriate concept was justified.

КОНЦЕПТУАЛЬНІ ЗАСАДИ ФОРМУВАННЯ ЦИРКУЛЯРНИХ ЦИКЛІВ У АГРОПРОДОВОЛЬЧИХ ЕКОНОМІЧНИХ СИСТЕМАХ

The article aims to supplement the methodological principles of the implementation of circular principles in the practical activity of economic entities based on the detailing of the cycles of a closed economic system and the definition of their key characteristics. The research results showed that activating the development of circular processes in the national economy is an objective requirement of the present and future. Based on the systematization of scientific literature, the author’s vision of the main concepts of circular economy development was proposed in the article. Under modern conditions, the concept of a "green" economy and global sustainable development was defined as the most common approach to working out the concepts and mechanisms of implementation into the practice of the circular economy principles. The closed cycle economy should be considered a tool for achieving the goals and objectives of the sustainable development of the national economy and the agro-food production sector. The system of cycles of a closed economy (cycles of closure, cycles of slowing down, and narrowing) was justified based on research on the features and principles of circular economy. According to each cycle of the closed-type economic system, the set of characteristic parameters of the circular economic system is presented here. The main sections of characteristic features of closed cycles were selected in the article: specific features, possible results, and promising priority drivers. Based on the study of various approaches and interpretations of the essence and content of the "circular economy" category, its author’s interpretation is presented. The strategic priorities of the further development of the circular economy, enshrined in the legislative initiatives of the EU countries, are investigated. A brief analysis of the existing regulatory and legal support for forming and stimulating the development of a closed economy in Ukraine has been carried out. The substantiation of the mechanisms and tools for the activation of the spread of the principles of circularity in the field of agro-food production in Ukraine forms the plane of further scientific research and development.

IMPLEMENTATION OF CIRCULAR ECONOMY APPROACHES IN THE TERRITORIAL COMMUNITIES OF THE REGION

Purpose. This article aims to investigate the implementation of circular economy practices based on existing empirical studies. Methodology of research. General scientific and special methods were used in the research process, in particular: induction and deduction – at the stage of collecting, systematizing and processing the necessary information; analysis and comparison - in the process of identifying the reflection of waste management problems in the strategic documents of the selected communities and the characteristics of the implementation of the principles of the closed cycle economy; abstract and logical – to form theoretical conclusions. The choice of communities fell on the sampled sample because they represent city, village, and settlement species and evenly geographically located territory of the Mykolaiv region. Findings. It has been found that in the existing strategic documents of the analysed communities solving the problem of waste management has been identified among the priority tasks. None of the analysed strategies specifies successful practices that implement the principles of a closed cycle economy. Two city communities have legal landfills for the accumulation of solid waste but do not use technologies of sorting, processing, and energy production, instead, there is a threat of exhaustion of the repository resource. Four rural communities only declared the need to allocate a specially equipped waste landfill for each settlement and began educational work among the citizens regarding the sorting of garbage, the danger of its burning, and awareness of its value as a resource for reuse or processing. Among the particularly alarming conditions, the low level of activity of community residents in solving existing problems is found, so the involvement of citizens is to be increased first of all. Originality. The substantiation of the expediency of introducing closed-loop economy approaches for territorial communities has been further developed. Practical value. Proposals, which were formulated on the base on the results of the study, can be used by representatives of local governments to involve community residents in the implementation of closed-loop economy practices for the socio-economic development of communities. Key words: closed-loop economy, resources, waste, linear model of economy.