Field Of Water Supply Research Articles

Development of a pilot plant for improvement water purification technologies at Desnianska water treatment plant in Kyiv

Providing the population with high-quality drinking water is one of the priority tasks of modern society. In Ukraine, which is experiencing challenges related to the need to modernize critical infrastructure, this task is of particular relevance. The Desnianska Water Supply Station (DVS), which supplies drinking water to a large part of Kyiv, needs a comprehensive renovation due to the deterioration of water quality at the water supply source and outdated treatment technologies. In this context, pilot studies are an important tool for optimizing and selecting effective technological solutions before their implementation on an industrial scale. The article discusses the development of a pilot plant to improve the technology of water purification at the Desnianska water supply station in Kyiv. The main goal of the study is to increase the efficiency of the water purification process through the introduction of the latest technologies and methods. The paper describes 4 technological schemes of water purification and the principle of operation of the pilot plant, as well as the justification for the use of such technological schemes. Requirements for research include: working out technological schemes during all seasons of the year; laboratory control of water quality at all stages of purification and disinfection; preparation of interim and final reports; presentation of research results. After the research, a significant improvement in the quality of treated water and a reduction in operating costs are expected. The proposed recommendations can be used to modernize existing water supply stations and introduce new technologies in the field of water supply.

Теоретичне підґрунтя публічного управління у сфері водопостачання та водовідведення

The sphere of water supply and drainage is a critically important component of the socio-economic mechanism, which is characterized by numerous challenges that were actualized in wartime. Aim of this paper is to analyze the main theoretical approaches of public management in the field of water supply and drainage in order to identify the main principles and tools that affect the efficiency and sustainability of the field. The tools of strategic planning, operational management and emergency response are considered as key components of successful management in this area. Emphasis is placed on the special role of developing fair tariff policies and financial support for infrastructure investments. The importance of the legal framework that regulates the sphere, ensuring compliance with environmental standards and protection of consumer rights is highlighted. The environmental aspect of resource management in the field, which includes modern methods of wastewater treatment and minimizing the negative impact on natural water bodies, is considered. It was emphasized that state intervention is a key factor in ensuring equal access to clean water, which is a basic human right according to the United Nations. The problem of natural monopoly in the field is considered through the prism of high capital investments and low elasticity of demand, which limit market competition. Strategies to stimulate competition and improve service quality are explored, including regulating tariffs and encouraging innovation. The example of Scotland, where water supply management is centralized through the creation of a single national company Scottish Water, reveals the effectiveness of such an approach in improving infrastructure and ensuring high quality services with public participation. The importance of a multidisciplinary approach to management in the field is emphasized, with a special emphasis on the stability of the service in wartime. The research may be useful to researchers, state and local authorities, and international organizations. Further perspectives of research include the study of the peculiarities of the application of the theoretical base in the solution of scientific and practical problems in the field in Ukraine during the war.

Analysis of research directions in the field of “Water supply and sanitation” in the modern history of the Russian Federation

This article analyzes the results of the work of scientists in the Russian Federation in the field of water supply and sanitation for the historical period of the Russian Federation from 1992 to 2022 inclusive (31 full years). The subject of the research are dissertations for the degree of candidate or doctor of Sciences in the scientific specialty 2.1.4. “Water supply, sewerage, construction systems for the protection of water resources” (05.23.04 to 02/24/2021) in accordance with the nomenclature of scientific specialties. In this paper, we propose a classification of the analyzed works to the main object of research in accordance with the structural part of the water supply and sanitation systems. We explore the intensity of successful defenses of scientific and qualification works by year, the popularity of various areas of scientific research, as well as the rating of Russian cities evaluating relevant scientific works.

Innovative technologies and their implementation in the field of sanitation and water supply

Digitalization in the water supply and sanitation system refers to the introduction of modern digital technologies and solutions to enhance the efficiency and productivity of these systems. Numerous innovations and advanced technologies contribute to improving the efficiency, reliability, and environmental sustainability of water supply and sanitation systems. This includes the use of various water-saving technologies, ultrafiltration, remote monitoring and control systems, smart water meters, and more. To maximize the efficiency of the water supply and sanitation system, it is essential to integrate as many different innovative technologies as possible. The article identifies existing problems within the water supply and sanitation system and explores solutions through various innovations. It also discusses the innovative technologies already implemented in the system and how they contribute to its improved operation.

Development of marketing research in the management of consumer decisions in the field of water supply to national economic facilities

This study reveals the essence of marketing research and presents a complete proposal for a marketing research program, including an analysis of possible alternatives for various market participants related to the consumption of water resources. The intensive introduction of marketing tools in various spheres of economic life determines the theoretical and practical interest in the algorithmization of planning activities in the field of marketing, the provision of services to the population and companies. Conducting market research allows the company to understand what customers want, the criteria by which they choose management companies and services for the provision of water consumption and sanitation services, the likelihood (or impossibility) of raising or decreasing prices. Consequently, companies can dynamically track any changes in customer needs, which allows them to retain customers and attract new ones. In turn, this provides the company with high competitiveness, market stability and favorable further economic growth. The main goal of this article was the development of marketing research in the management of the formation of consumer decisions. In the process of writing this article, a literature review, data synthesis and analysis, and systematization of the findings were conducted. The results of the study can be applied in the management of the formation of consumer decisions.

An Analysis of the Efficiency of Using Fixed Assets of Vodokanal JSC

The climatic features of the Sakha Republic (Yakutia) require increased reliability of engineering life systems, and therefore the volume of housing and communal services provided far exceeds the average Russian indicators. One of the backbone enterprises in this industry is Vodokanal JSC. Vodokanal JSC is a monopolist in the field of water supply and sanitation and plays a key role in the economic and social development of the republic. The relevance of the study is explained by the fact that fixed assets provide the material and technical possibility of providing residents of the city of Yakutsk with high-quality drinking water and sanitation services. Maintaining fixed assets in normal technical condition and improving their use is the key to the success and reliability of any enterprise. The purpose of the research is to study the role of fixed assets in the activities of Vodokanal JSC. The analysis of literature sources shows a variety of methods for analyzing fixed assets. The authors selected two main areas: an analysis of the condition and movement of fixed assets and calculation of indicators of their effectiveness. The analysis showed that the fixed assets are generally in satisfactory condition, as evidenced by the calculated indicators of the efficiency of stock return, capital coefficient, and stock ratio. The main ways to improve the use of fixed assets are proposed. To conduct the study, the data of the financial statements of Vodokanal JSC were used, general scientific methods and techniques of the study were used.

Analysis of Essential Industries and Other Fundamentals as Well As Financial Competitiveness in Driving Economic Growth in Medan City

Economic growth is an indicator of economic development in the process of economic growth. The benchmark economists use to look for signs of economic growth in a country or region is regional gross domestic product (GDP). This study's goal is to evaluate which industries are included in the primary and non-primary sectors and how economic competitiveness accelerates economic growth in Medan City. This study uses quantitative research methods with class analysis tools Location Question (LQ), Shift Share and Typology.The results of the study based on the results of location inquiry analysis show that there are 12 basic sectors, namely: the field of water supply, waste treatment, waste and recycling; Construction; wholesale and retail trade, repair of cars and motorcycles; transportation and storage, provision of shelter and food; Information and Communication; financial and insurance services; Housing; business services; Education services, health services and social services and other services as well as five other economic sectors are non-core sectors of Medan City. The results of the Shift Share analysis show that almost all economic sectors in Medan City have a positive Differential Shift value, meaning that these economic sectors have strong competitiveness or high competitive advantages compared to the same industry in the Sumatran economy

Management Models and the Sustainability of Rural Water Supply Systems: An Analytical Investigation in Ha Nam Province, Vietnam

Clean water and sanitation is a global issue that has recently received special attention from governments and international organizations, as they essential to enhance people’s health and foster socio-economic development in different countries. Therefore, one of the United Nations’ Millennium Goals is to ensure access to safe drinking water for all as its target by 2030. However, ensuring water supply in rural regions, especially in developing countries, is a challenge. To meet the target, investing in infrastructure and maintaining the sustainability of water systems is crucial. This study takes into account the role of the management model of rural water supply systems and its relationship with the sustainability of the water systems. A weighing procedure for a sustainability assessment of rural water systems for the current study was proposed, then an ordered logit regression model was applied to examine the relationship between types of water system management models and the sustainability of the water systems in the context of Vietnam. The results from this study showed that type of management model had an influence on the sustainability of rural water supply systems, and the private management model was considered the one that significantly contributed to the sustainability of the rural water systems in the study area. The study provides some lessons learned for researchers in the field of rural water supply to select appropriate approaches to assess the sustainability of water systems and for policymakers to modify current policies toward more sustainable development of water infrastructure in the future, especially in developing countries.

Study on electrochemical reduction mechanisms of iron oxides in pipe scale in drinking water distribution system

Iron release from pipe scale is an important reason for water quality deterioration in drinking water distribution systems (DWDS) globally. Disruption of pipe scale, release and transformation of iron compounds are hot topics in the field of water supply. The aim of this study is to determine whether and how ferric components in pipe scale be reduced under anoxic condition. In this study, new investigation approaches were applied, which include simplifying the complex scale into electrode pairs, developing novel simulating reactors and conducting tailored electrochemical assays. A galvanic cell reactor with anode of metallic iron (Fe0) and various cathode made of certain iron oxide (FeOx) was firstly developed to simulate the complex niche and components of pipe scale. Electrochemical methods were used to study the reduction characteristics of scale. The results proved that reduction of iron oxide scale did occur under anoxic condition. Electromotive forces between various electrodes match the Nernst Equation quite well. As main components in pipe scale, lepidocrocite (γ-FeOOH) was found to be the most reducible iron oxide but at low rate, while goethite (α-FeOOH) has weak reducibility but can be quickly reduced. As a result of electrochemical reactions, goethite in pipe scale was transformed into magnetite (Fe3O4). By these means, electrochemical reaction mechanisms of pipe scale disruption were revealed, which is helpful to restrain pipe corrosion and water deterioration in DWDS.

Виклики та диспропорції у забезпеченні промисловості робочою силою

Structural changes in the economy, caused by current and potential changes in the needs of society for survival in today's conditions and reconstruction of the country in the post-war period. With the change of the industry structure, new requirements appear for the workforce, its qualifications, quantitative involvement in various spheres of activity. The work offers a systematization of current and potential challenges and disparities in providing industry with labor force. The dynamics of demand and supply of labor in industry, their ratio, are characterized, and a conclusion is made that there is no critical situation related to meeting the needs of industry in labor. According to general forecasts of the labor market, a shortage of personnel is expected, but the industry has a different situation by branch. The leader in the number of job shortages compared to other industries and spheres of activity is the processing industry, in the extractive industry almost a balance between supply and demand has been achieved. In the field of electricity and gas supply, the number of unemployed is almost twice as high as the demand. Only in the field of water supply and sanitation is there a labor shortage. The work emphasizes the importance of countering modern challenges and the formation of the workforce according to the needs of industry. Among the military challenges, such aspects as reduction of jobs, mass emigration of labor force, imbalance by regions and professions, high level of unemployment due to labor shortage due to asymmetry between demand and supply of labor force, loss of labor force due to mobilization and death, diminization of the labor market are highlighted. , liberalization of labor relations. The challenges inherited due to the defects of the Ukrainian peacetime economy are outlined. Emphasis is placed on the reduction of the social security of workers in the conditions of martial law, which is due to the introduction of changes in the labor legislation. The problems of the efficiency of the use of human capital, imbalance in wages, sectoral structural disparities and economic inactivity among young people are highlighted. The potential challenges of labor force development in Ukraine are outlined.

Možnosti využití konstruktivní simulace pro plánování nouzového zásobování vodou

The paper focuses on the issue of information support of emergency drinking water supply planning. Implementation of simulation into the process modeling for process verification in the field of Crisis Management provides us with an opportunity to make the preparation of a Crisis Management Plan more effective. The article presents the role of simulation in Crisis Management, the possibility of using simulations within the Crisis Management Cycle, and particularly the use of constructive simulation in the process verification of the emergency water supply. During the simulation, deficiencies in the planning processes have been identified, and possibilities of simulation tools aimed at the planning process of crisis management in the emergency water supply field have been discussed.

Development of AI-Based Water Pipe Aging Condition Evaluation Algorithm

As interest in the development of artificial intelligence technology in the water supply field increases, an artificial neural network algorithm that can predict improved decision ratings through repetitive learning using results of aging pipe condition evaluation data should be developed and the most reliable prediction model should be presented through a verification process. An algorithm was developed to predict pipeline ratings by updating weights through backpropagation so that 12 items of indirect evaluation data according to the 2020 Han River Basin

HYDRO-ECOLOGICAL PROBLEMS OF USE AND PROTECTION OF WATER RESOURCES OF THE REGION

Introduction. The article examines the issue of the hydroecological state of water resources of Ukraine in a regional section. The situation and trends in the field of water supply, some aspects of financing, administrative and management vectors in this field are characterized. The need to implement a set of measures to improve the ecological situation, optimize approaches to nature use, preservation and protection of hydroecosystems is emphasized. The purpose of the article is to study the hydro-ecological state of water resources, factors affecting water quality, approaches to the protection of hydro-ecosystems at the regional level (on the example of the Ternopil region). Research methods. The methods of analysis and synthesis, systematic generalization were used in the preparation of the scientific publication. Results: Ukraine's water resources require comprehensive measures to improve their ecological status, optimize approaches to nature management and protection. An analysis of the ecological problems of the hydroecosystems of the Ternopil region was carried out, and the main reasons for their degradation were clarified. Installed. the satisfactory state of water bodies and the main areas of work to improve the ecological state of the region's rivers are recommended. It is necessary to clear the riverbeds, optimize the industrial and communal water treatment system, establish and expand sanitary protection zones, strengthen the banks, stimulate the responsible attitude of the population and individuals to the preservation of water bodies and the improvement of their condition through environmentalization, education and financial regulation mechanisms , implement measures to prevent unauthorized interference in channel processes, increase funding for the restoration of water resources with strict control of the expenditure part and strict reporting. Keywords: water bodies; protection; hydroecosystem; ecological condition; degradation.

A new era for public–private partnership (PPPs) in Egypt’s urban water supply projects: risk assessment and operating model

ABSTRACT The UN summit entitled “Transforming Our World: Sustainable Development Plan 2030“considered the provision of clean water and sanitation (Goal no 6) one of the 17 key goals that the UN is striving to achieve. In this respect, Egypt is considered one of the countries that will suffer from water shortage because of establishing the Grand Ethiopian Renaissance Dam (GERD) and tremendous population growth. This research explores the current state of the water supply sector in Egypt based on the distinctive characteristics and challenges facing the development in this sector. Previous literature has examined the key performance indicators (KPIs) for the water supply sector, (PPPs) approach as an effective tool to promote the water supply sector, China's expertise in water supply by PPPsand summarizing the potential multiple risks associated with water supply projects from the literature reviews. Thereafter, an electronic questionnaire was conducted with multidisciplinary experts to identify optimal models (PPPs), weighted for (PPPs) pillars, and assess the potential risks by the Egyptian economy, and social circumstances in the field of water supply. As such, the findings in this research identify and rank the high potential risks based on the opinion of the experts, and an operating model to promote the (PPPs) projects in the water sector in Egypt was proposed based on the identified risk factors (KPIs) and the (PPPs) agreements.

APPLICATION OF PROCESS FUNCTION METHOD FOR THE EVALUATION OF WATER TREATMENT PLANT ORGANIZATIONAL PERFORMANCE – PUC “NAISSUS” NIŠ CASE STUDY

The analysis of the administrative public utility bodies in charge of water treatment and distribution revealed the need for improvement and a clear definition of the place and role of the administrative-planning bodies for water delivery, as well as the improvement of the implementation of works in water supply systems. In this research, the assessment of the organizational performance of the water treatment plant is performed by means of the process functions method. Furthermore, this method improves the efficiency of operations in the water treatment plants through the evaluation of job implementation in the field of water supply. The concept of process functions includes the analysis of key jobs necessary for timely and successful task implementation by each job role within the organization. This method is most extensively applied in the organizational sciences, such as human resource management – organizational design, including the analysis of functional organizational charts, while its application is limited in engineering sciences. Since the most important resource of any organization is the human capital (i.e., its employees), this paper focuses on a water utility company “Naissus” from Serbia regarding its evaluation of organizational performance. Furthermore, the aim of this study is to introduce process functions as a standard analytical method, thus connecting all activities within the water treatment plant in order to optimize its operations.

Econometric Model for the Financial Performance of Romanian Companies Operating in the Water Supply and Sewerage Field

This research aims to measure the financial performance of companies in the water and sewerage sector by creating a sustainable econometric model for making long-term strategic decisions for managers and stakeholders. The research methodology consisted of the use and statistical processing of the data included in the summary financial statements of 40 regional operators in the field from 2014 to 2020. Multiple linear regression has been created with which stakeholders and water and sewerage specialists can shape changes in value-added variation, the average cost per employee, labor productivity, and energy expenditure on the net profit of water operators and sewerage. The results indicated that the independent variables used, such as value-added, labor productivity, or intangible assets have a direct influence on increasing the net profit of water and sewerage companies. Other independent variables such as the average cost per employee or the expenditure on electricity and water negatively influence the increase in the net profit of companies in the water and sewerage sector. The conclusions indicated that the average net profit is influenced by independent variables and the model created, and it can be successfully applied to other international companies in the field.

Causes of Injuries and Traumatic Factors in the Production of Works in the Field of Water Supply and Sanitation

This article analyzes the nature of work and the safety of workers employed in the field of water supply and sanitation. Injury statistics and traumatic factors are also considered, in order to determine the main causes of the occurrence for the development of measures to prevent them.

Assessment of the state of water resources as an element of the production infrastructure of the Navoiy Region: Challenges and solutions

Subject. This article deals with the issues related to the use of water resources. Objectives. The article aims to study prospects for the development of the water supply system of the Navoiy Region districts of the Republic of Uzbekistan. Methods. For the study, I used a comparative analysis. Results. Based on the calculation of water savings in the districts of the Navoiy Region and official statistical data, the article presents diagrams of the distribution of water resources and proposes ways to solve the problem of their shortage. Conclusions. It is necessary to further study the problems in the field of water supply, introduce information, communication and digital technologies, and implement various agro-engineering measures.

Water Supply Systems in Multi-Apartment Buildings and their Design Characteristics

The research considers ongoing changes in the current system of legal regulation in the field of water supply and wastewater disposal of multi-apartment buildings (MABs). The authors present results of operational and design standards of water consumption analysis. It is shown that the existing regulatory and technical documents need adjustment in terms of determining the maximum possible consumption of cold and hot water for MABs residential units. The paper also puts forward an algorithm of hydraulic calculation of MABs domestic water supply systems according to the methodology developed in the Academy of Construction and Architecture in Samara State Technical University (ACA SamSTU).

SSI “Institute of Education Content Modernization”

The article summarizes the main approaches to natural resource management in the national economy, taking into account the innovation context. It is determined that today there are many types and forms of such management in the national economy. It is substantiated that the shortage of natural resources can be overcome through efficient and rational use, while using modern innovative solutions that will significantly modernize the infrastructure. It is investigated that due to the use of ecological innovations today it is possible to suspend the processes of irrational use of natural resources. Also, the processes of restoration of natural resources can be met through the use of innovative technologies (water treatment and wastewater treatment technologies, technologies and methods of extraction of natural resources, collection or distribution of water for buildings or similar local water supply). The opinion of modern researchers is summarized that the need to form a state policy in the field of water supply and sewerage on the basis of an innovative model is urgent. It is pointed out that the current practice of land use causes the deterioration of land, and the depleting use of land, forests and water resources leads to irreversible loss of ecosystem and biological diversity. It is concluded that today eco-innovations should be understood as something more than technologies for cleaning, processing, transportation and disposal of waste, elimination of toxic waste. As a result of the study, the thesis was formulated that a comprehensive assessment of the economic and environmental significance of a source of risk may be based on relevant expert assessments.