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Assessment of spatial and temporal distribution of groundwater recharge is critical for long-term water resource management and planning. The spatial distribution of groundwater recharge depends on the climate conditions, topography, slope, soil textural, land cover, and distributed groundwater depth. In this paper, the monthly steady-state water balance model, WetSpass-M, was applied to estimate the groundwater recharge in the Cun-Szaporca oxbow of Drava floodplain, Hungary. The model inputs data are prepared in ...

Surface water pollution occurs due to urbanization of the environment and the growth of industries. Monitoring of the pollution? sources, regular control as well as analyzing of surface water status in small streams is a basic prerequisite for good condition and water quality in the rivers into which they flow. The functioning of the water system includes processes that affect the surface water cycle itself, the reduction of selected characteristics, the removal of toxic substances, the protection of the ecosystem...

The light hydrocarbons and water-soluble oil components overcome geological barriers - water-resistant horizons and gas-tight layers of the earth?s crust at the macroscale - and therefore natural waters of territories with oil and gas fields have a number of specific features. The purpose of the research was to investigate the features of organic impurities in groundwater and drinking water samples in the absence of accidental spills (pollution). Water samples were taken in oil and gas producing territories of Kha...

The focus of this paper is on the using geoinformatics by representatives of local government and local authorities in crisis management to refine and optimize the planning of the evacuation process of the population at risk of flooding which is the most frequent reason for the crisis situations in the Czech Republic. The main tasks in planning area evacuations, as the primary protection of the population, are the estimation of the number of evacuation vehicles required for the vulnerable population and the planni...

The paper deals with fluctuations in water pressure and its influence on water losses in the network, depending on the time and height of the building. Water losses, depleted infrastructure life, and rising energy costs are just some of the issues that affect grid pressure. Excessive pressure increases the risk of piping rupture and water leakage in the distribution network and increases the cost of energy that needs to be spent on pumping and producing additional drinking water. Reducing the water pressure in the...

The overlapping of the Yenisey River by Dam of Krasnoyarsk hydroelectric power station noticeably altered abiotic conditions of habitats of river ichthyokoinos in the zone of an artificial pond - Krasnoyarsk reservoir. Its mode of operation for the past 50 years is defined in foremost tasks of hydropower and practically does not take into account the criteria of conservation of homeostasis of aquatic ecosystem and fisheries interests. Change of rheofeeling complex on limnofeeling in the process of forming reservoi...

The paper presents the results of scientific research in the field of environmental protection, proposed an approach to monitoring the ecological status of soils and surface waters, and considers the assimilation potential. The purpose of the work is to determine the dynamics of the growing impact of natural and man-made loads on the environment and increase the efficiency of environmental organizations. ArcGIS GIS software and ERDAS remote sensing software were used to translate data into thematic maps. ArcGIS's ...

Since 1998, MHI has been monitoring the hydrological and hydrochemical characteristics of the waters of the Sevastopol Bay. The purpose of this work is to study the hydrological characteristics of the waters of the Sevastopol Bay, according to the expedition research data of the MHI in 2006-2018. This paper uses data from 34 surveys from 2006?2018. Studies during the majority of surveys were carried out on a grid of 36 stations, with 3 stations being performed just before going to the bay, the rest in the Sevastop...

The article is dedicated to the study of hydrometeorological parameters on a stationary oceanographic platform in the Black Sea. The research paper contains the description developed in the Marine Hydrophysical Institute?s complex for measuring meteorological parameters (wave height, wind speed and direction, free-air and sea temperature, barometric pressure, relative humidity). The measurements were carried out on a stationary oceanographic platform located in the coastal zone of the southern coast of Crimea at a...

Source water for water treatment plants can contain various mechanical and biological impurities and are usually removed in sedimentation process. This process highly depend on phase composition and morphology of solid phase which is present in suspension. Due to the fact that morphology of non-grain suspension determines hydrodynamic properties, such as porosity, permeability and even density, it is crucial to identify the primary constituents of that kind of aggregates. The main aim of research presented in this...

Simulating direct runoff is vital, especially with regard to flash floods. The frequency of flash flood events increases as they are concomitant phenomena of the climate change. Considering the difficult prediction and rapid onset, as well as often lack of input data, the Soil Conservation Service curve number procedure (SCS-CN) poses a useful approach applied globally. Nevertheless, the method was developed for small agricultural watersheds in the USA, thus demanding corresponding modifications in order to provid...

This study deals with the synthesis and characterization of functional membranes, suitable for the removal of heavy metal ions from synthetic wastewater, using various copolymers together with low amount of biosorbent. The membranes were obtained at room temperature by phase inversion. The kind of biosorbents were investigated, the 1st one based on nutrients and the 2nd one based on bioactive substances. The obtained functional membranes were characterized by different techniques: Fourier Transform Infrared (FTIR)...

Majority of existing simulation models is composed for simulate the pollution spreading (concentration) only downstream from the pollutant source. Consequence of this is that these models strictly require all the initial and boundary conditions (discharges, location and concentration of the pollutant). However, opposite problems may occur in practice: pollution concentration time courses in specific cross-section profile along a watercourse are known (e.g. based on the on-line monitoring), but pollution source loc...

As part of global monitoring of contaminants delivery to ecosystems via atmospheric transport it is valuable to investigate the accumulation of pollutants in lacustrine sediments, in particular in those remote from cities and industries as potential sources of pollution. Not only conclusions about human impact have been inferred from the proxies, but they also have been used to distinguish it from climatic-driven shifts. Three relict lakes Khotavets, Pogoskoye and Beloye in North-Western Russia have been cored and...

Nowadays, in the entire world, we can clearly see the effects of climate changes. Indeed, during the last twenty years, climate-related and geophysical disasters killed around 1.3 million people and left a further 4.4 billion injured, homeless, displaced or in need of emergency assistance. From this framework, it is clear that we need policies to improve the resilience of our cities. Those ones are only some components of a more complex system that includes also natural elements, i.e. the territory. Therefore, in ...

The current climate change, demographic problems and unequal territorial and seasonal distribution of fresh water supplies lead to a sharp expansion of the reservoir network. Subsequently, the negatives associated with the process are increasing: flooding of lands and infrastructure, impacts on climate, change of underground water regime, activation of landslide processes and rising population security risks. During designing of water reservoirs, they were not investigated and taken into consideration. The rationa...

In the context of reducing the significance of development of irrigated agriculture?s extensive factors, first of all, it is necessary to pay attention to the activation of factors providing intensive conditions for development and growth. This factor is the personnel potential of the industry. It is necessary to know the regulatory, scientific and practical foundations and the current state of the land reclamation industry to determine a more effective methodological approach to the formation of the ameliorative ...

The topic of assessing the efficiency of a public investment in a shipping lane involves a myriad of smaller units that can be examined in more detail. The aim of this paper is to focus on the group of public investments related to the shipping lane as an object of public interest. Nowadays, shipping lane enter the topic of public investment primarily as a possibility of reconstruction or modernization of the area so that it can be effectively used for social purposes. The impact of a given shipping lane as a publ...

The municipal solid waste landfill in Tychy, southern Poland consists of three sites, the old one, closed in 1994, and two others still being in use. The old part of the landfill has neither any bottom liner nor any leachate collection and treatment system. Moreover, the bottom of the closed site in the northern part is continuously above the groundwater table, therefore, pollution can easily release into groundwater causing deterioration of groundwater quality and the nearby river nearby. In order to assess the i...

The article presents the methods of modeling two-phase flows. The widespread application of issues related to two-phase flows in industry encourages to familiarize with the methods of modeling this type of flows. The article presents basic mathematical models of two-phase liquid-solid flow on the example of sedimentation. In addition, numerical methods for simulating the sedimentation process are presented. Paper presents the possibility of using the Boltzmann method, the so-called Lattice-Boltzmann methods in mod...

Water level, electrical conductivity, dissolved oxygen, oxidation-reduction potential and pH of Suceava River were monitored in 2018 and 2019 in order to assess the upstream-downstream evolution of these parameters and the impact of Suceava City on this river that divides its built area. The measurements were done automatically every hour with two AquaTROLL 500 instruments. This study focuses on analyzing distinct time intervals with typical and atypical fluctuations of the selected parameters as well as on identi...

Sediment transport in rivers is posing a hazard to infrastructures and cities built along the river courses, especially in mountain areas. Awareness about this topic raised in the last decade and even the European Flood Directive in 2007 stated that particular attention should be devoted to ?areas where floods with a high content of transported sediments and debris floods can occur?. Authors are monitoring sediment transport in a 24km2 basin in Alps, Northern Italy, since 2016. This stream was surveyed multiple ti...

A long-term prediction of coastal profile evolution is done basing on several years' measurements. The adopted diffusion model is first calibrated against real data obtained from over more than 20 years measurements, and then extrapolated. A realistic prediction is then made by solving numerically a diffusion equation with coefficients obtained by the extrapolated values. In previous studies, taking into account the time dependence of the coefficients, we were able to reduce to 10 years the number of time measurem...

The security of technical infrastructure in crisis situations can be divided into several areas that can affect its functions. The aim of this work was to focus on water infrastructure with regard to legal aspects set in the Czech Republic. Water is essential for economic growth, human health, and the environment. The main reason for the emergence of the crisis situation in parts of the water infrastructure is predominantly presence of a large amount of water (torrential rain, lightning flood, flood, increased wat...

Climate change is defined as a significant difference between two mean climatic states, with substantial impact on the ecosystem. Extreme climatic events, such as higher temperatures, more intense precipitation, increased drought risk and duration as well as cyclones and flooding in coastal areas, are expected to increase in both frequency and intensity. One of the possible indicators of water stress is sap flow measurement. For this experiment were used the apple trees in Nove Zamky, Slovakia. On stem were instal...

Despite the widespread use of sedimentation in the industry and numerous scientific works in this field, all factors affecting the process of sedimentation are still not sufficiently recognized. The sedimentation of fine-grained suspension must often be supported by a flocculation process or by using a multiflux filling. The particles of the solid phase of the suspension after the addition of the flocculant have the tendency to flocculate to form larger agglomerates, and thus their falling speed increases due to t...

In recent years, research and development works have been carried out in our country to create a modification of the sprinkler machine ?Kuban-L? with a set of equipment for controlling the sprinkling height (including the surface one), which allows reducing the average rain intensity and reducing the loss of irrigation water for evaporation and demolition by the wind. There are a number of issues that need to be clarified, despite the large degree of this product?s development such as the distribution of the quali...

The land subsidence caused by underground mining results in land form transformations in the Silesian Upland, which is located in southern Poland. The aim of the research was to determine the role of subsidence basins as new sedimentary basins and local erosion bases. Detailed research was carried out in selected mining subsidence areas where most extensive and spectacular subsidence basins in the Silesian Upland have formed. As part of the field work, the geological structure of the area was examined and detailed...

Sustainable development has been conceived as a solution to the ecological crisis caused by the intense industrial exploitation of resources and the continuous degradation of the environment and seeks primarily to preserve the quality of the environment. Sustainable development also brings to the forefront a new set of values that will guide the future model of economic and social progress, values that focus on man and his present and future needs, the natural environment - protecting and preserving it, and mitiga...

Energy efficiency is a key factor of today?s engineering practice. Water and wastewater systems (made up of supply and disposal networks, treatment plants etc.) often contain under pressure sections. Their energy efficiency strongly depends on the accuracy of the head loss evaluation including local head loss. In these systems a great amount of local head loss is given by different valves. Gate valves and check valves are being widely used in water and wastewater systems, therefore this article focuses especially ...

Climate changes and human activities on Earth's surface effect on natural Earth's resources as well as on inland waters. Any changes in the Earth's atmosphere, such as changes in temperature, humidity, precipitations and their intensity affect the inland waters area and level. In order to carry out the monitoring of the areas under the inland waters economically, the satellite imageries collected by remote sensing sensors are used. Satellite imagery used for this research were cloud-free Landsat-8 imagery at study...

Climate change will lead to an intensification of the hydrological cycle and can have a major impact on regional water resources. A change in water volume and distribution will affect both groundwater and surface water reserves usable in industry, domestic activities, irrigation, navigation, aquatic ecosystems, hydropower and some recreational activities. Changes in the total amount of rainfall, in their frequency and intensity, directly affect the size and times of floods and droughts. The impacts of climate chan...

In the recent years, the climate changes have determined the increase of the frequency of flood, and concurrently, negative effects of these weather phenomena were amplified by other factors (the deforestation, needs of the hydro technical works, etc.). Atmospheric precipitation contributes to formation of superficial runoff, or accumulates in the snow in the winter, sometimes participating during melting to form the maximum runoff. The consequences of this rainfall can be serious in terms of erosion and soil wash...

The precipitation survey by modern techniques helps calculate the amount of rainfall in the catchment and save it in a digital format. This paper proposes the development of a GIS methodology for determining the input data or parameters needed for modelling the rain-drainage process in order to anticipate the amount of available leakage water and the integration of slopes leakage to estimate the magnitude of rapid floods that may occur. The data obtained from the rain-gauge stations in the Uz catchment are used in...

This article presents the potential of biochar used in wastewater treatment processes and sludge management in small installations - for the maximum maintained number of users equal to 50. The possibilities of two substances used in sewage management processes, such as char and biochar will be presented. These substances, produced from pyrolysis, are stable carbon-rich compounds which have various beneficial applications like soil conditioning, remediation and wastewater treatment. In particular, biochar originati...

Source water for water treatment plants can contain various mechanical and biological impurities and it is required to remove them, before the water can be used. In order to eliminate most of the solid pollutants coagulation process is commonly employed. Process of coagulation is efficient in the case of hard to settle and colloidal particles, which are usually present in water, but it is important to know what kind of pollutants are present in the suspension in order to find out the best possible solution. This p...

The main problems faced by any city at present are: reduction of natural resources, environmental degradation, increased carbon dioxide, demographic and social changes associated with the urbanization and population growth phenomenon as well as increased frequency and size of floods urban.Stormwater collection is a strategy for adapting to climate change. This strategy has been applied by many civilizations in the history of mankind, pluvial water collection systems have met, for the first time, in areas with long...

Wetland habitats, such as transition mires and quaking bogs (habitat code 7140) and alkaline fens (habitat code 7230), are characterized by the occurrence of species sensitive to the water stress. The prolonged period of water shortage is manifested by a change in the structure of domination, species composition and, as a consequence, the reconstruction of the entire habitat. Due to the fact, that habitat is not homogeneous and varied very much depends on geomorphological position a monitoring of the water stress ...

Due to the flow behavior complexity, the calculation of local head losses needs to be based on experimental results. Although there is great literature regarding the study of valves, and a part of it contains detailed results of local head loss too, these values are always related to a specific manufacturer. This means that for accurate design it is recommended to know the specific head loss exactly for the used device. In the present paper the conception and building of an experimental stand for measurement of lo...

Water is an essential ingredient of food, an important part of the environment and a substance with a multifaceted use in manufacturing and other activities. It is an essential component not only of the human environment, but also of all plant and animal ecosystems. It is the main medium for transport of nutrients. It is a renewable resource of the biosphere and practically cannot be exhausted. This paper describes the occurrence of oxohalides in water and determines oxohalides by means of ion chromatography. The ...

The subject of study was spatial analysis of transmission of visible light in water column of two deep suburban lakes during peak of summer. In vertical profiles of lakes correlations between transmission of blue/green light, photosynthetic active radiation (or PAR), temperature and oxygen content, chlorophyll a and physico-chemical features of water were analysed. Apparent and true depth of photic zone was investigated. The hypothesis was that vertical changeability of PAR limitation/transmission may be used as a...

The Cetina River is situated in the Dinaric karst area of Croatia. It is a valuable ecological resource because of the existence of numerous rare ecosystems and landscapes. On the other hand, the water is used for drinking purpose, electricity production, industry and irrigation, so the quantity and quality of water is influenced by human impacts. During the period between 1960 and 1985, five hydropower plants were built, which strongly influenced natural regime of the river and the whole area. This paper presents...

In this study, biosorptive characteristics of mustard waste functionalized with METALSORB (which is a precipitation agent used on an industrial scale) were examined for the removal of Cu(II) ions from galvanizing industrial wastewater. Batch experiments were performed in order to study the influence of initial Cu(II) ions concentration and contact time under optimal experimental conditions, and the results were compared with those obtained on mustard waste biomass (before functionalizing treatment). Equilibrium da...

Water level fluctuations play a significant role in linking water and soil environments and shaping littoral zone. The aim of study was to evaluate the physical and chemical features of water as well as light availability in phytolittoral zone in the case of water level rise. Investigations were carried out in deep mesotrophic lake with well-developed charophytes meadow, above which samples were collected (30 stations). In this lake between year 2010 and 2012 water level increased over 1.0 m as a result of intense...

One of the most important sources of potable water throughout the world is the ground water, which is currently under stress due to human activities and consumption. Therefore, the presence and transport of contaminants in the groundwater represents an important threat to the human health and the environment. Many studies dealing with the groundwater quality and its sustainable use are found in the literature. Latest research shows a great opportunity of removing groundwater contaminants by using clay. Thus, an ex...

Water resources, particularly the phreatic ones, are exposed to a high risk of nitrates pollution. This pollution appears mostly in rural areas, due to improper use of fertilizers, improper waste storage or local sources of infestation, like animal sheds, and so on. Recent researches have indicated that clay can be used for groundwater decontamination. Mass transport between the unsaturated and saturated zones greatly influences subsurface processes. The transition zone between the vadose zone and the saturated zo...

The flood regime in the Prut ? B?rlad catchments is characterised by short, high intensity floods in the majority of upland rivers. These upland rivers are often ephemeral ? dry during the hot, summer months and wet during the winter months. In lowland rivers, flooding is more prolonged, especially near confluences. Short, high intensity rainfall coupled with low infiltration on catchments lead to flash flooding in upland areas. Changing land use patterns during the last 15 ? 20 years are increasing the frequency ...

The Paper present confined groundwater flow and solute transport modeling in water catchments area and wastewater system Giarmata, using the hydraulically modelling whit mathematical simulation. Modeling purpose is to constitute extending pollution propagation of aquifers generated of possible wastewater pumping station pollution. Pollution zone definition is necessary to settle technical measures to using drinking water systems. The used software for numerical modelling in this paper is Processing Modflow for Win...

In the area of the Erzgebirge Foothills (Krusne hory), research of flooded mine pits in terms of water regime and quality as well as their management and subsequent use has attracted great attention in recent years. Smaller water reservoirs (ponds, wetlands, dips, sinks) have not been systematically monitored, despite of their importance in this type of landscape which has been affected by mining. The Modlany reservoir was monitored in 2013?2017. This small water body shows symptoms of an extremely eutrophicated s...

Modeling was carried out on the basis of hydrological data from the ?yna River (north-eastern Poland). The length of the river is 264 km, the average river slope is 1.2 ?, the catchment area is 7126 km2. Modeling was based on data on water flows and the amount of precipitation. Neural models were created in which the input data is the amount of rainfall and the output is the flow. The possessed data has been divided into two parts, one of which was used to teach and test ANN, and the other - smaller - to verify th...