Browse

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...

The land subsidence caused by underground mining results in the transformation of water relations in the catchment. The purpose of the research is to determine the impact of the subsidence basin on changes in the water cycle. Detailed research was carried out in the city of Bytom, in the Karb district where one of the most spectacular subsidence basins on the Silesian Upland (southern Poland) emerged. As part of the study, the geological structure of the area was examined and a detailed geomorphological and hydrol...

General topic of this paper is numerical modelling of pollution dispersion in streams and use of some modelling approaches for the inverse task. Inverse task means a modelling technique, which is focused on the localisation of unknown pollution source. Such task is called ?inverse ?, because typical common models or equations are rather focused on the pollution spreading simulation, whereas the pollution source location is known. To solve such inverse problem various approaches can be used, but in all cases a prer...

The widespread use of fertilizers and pesticides impairs the state of the environment. Identifying the nature of the influence of fertilizers and pesticides on natural waters and identifying the extent of this influence is relevant today. The article discusses the influence of mineral and organic fertilizers on the qualitative characteristics of groundwater (waters of the first aquifer from the surface) in the Predvolzhsky region of the Republic of Tatarstan. Hydrogeochemical and agrochemical data help assess this...

Nowadays, after periods of time without precipitation, more and more frequent rains are coming in with very high flows in very short time. In case of extreme precipitation phenomena, sewer networks can no longer take rainwater flows, which often occur with large damages, often with loss of life. Drinking water is not renewable. That is why it is important to protect drinking water sources by using rainwater more efficiently. By recovering, storing and using rainwater, costs are reduced by treating and transporting...

The authors present the results of the research on the variability of selected physicochemical properties and discharge of medicinal waters in Ladek-Zdroj. The medicinal waters are exploited by five natural springs and one deep L-2 well. Based on previous studies, it was found that there are strong hydraulic bonds between particular intakes of thermal waters. The nature of these correlations indicates that medicinal thermal waters are recharged from one fissure deposit of deep circulation system. The main factors ...

The study of aquatic systems is an extremely important issue in the context of saving. natural resources. In this respect, the description of the evolution over time and the dynamics of some status parameters describing the dynamic aquarium system is a rather difficult problem. This paper presents a method of representing evolution over time and some status parameters that allow assessment of the status of an aquatic system. The method outlined in the paper is based on the use of automated automatic neural network...

Technological processes and human activities generate large amounts of waste, including streams of hazardous waste. This type of waste is a serious threat to the natural environment, therefore it is important to choose the right recovery process or disposal of this type of waste. The article presents legal aspects concerning the management of hazardous waste, methods of disposal and the structure of hazardous waste management in Poland. The criteria for the selection of technology have been presented as well as te...

The Panensk? Creek has been impacted by Pb pollution from local factories in the period of little environmental concern, which has not yet been documented completely in state registry of environmental risks in the Czech Republic. A lead-glass processing factory in Jablonn? v Podje?t?d? was one of the main industrial Pb pollution sources in the Panensk? Creek catchment. It was in operation in 1955-2002. To localize the original and still active pollution source in this area, we used geographical information systems...

The article presents the proposition of numerical simulation of the sedimentation process in sedimentation devices, including the method of defining and validating the numerical model of the suspension. The proposal includes a proposal to define a suspension in numerical simulation as a multiphase system with a polydisperse grain composition. The article contains information on the method of defining a multi-phase system based on grain composition of a suspension. A proposal for verification of the numerical model...

Permeable pavements are among the most diffused Low Impact Development techniques (LID). Several studies have confirmed the optimal performance of permeable pavements in terms of peak reduction and water retention. Furthermore, permeable pavements have proven to reduce pollutant load in runoff water. Although the benefits are evident, the transition from traditional urban drainage systems to the sustainable ones is very slow. The lack of accurate modelling tools represents a key limiting factor in the diffusion of...

The Water Framework Directive obliges the member states of the European Union to monitor the state and ecological potential of water bodies. The assessment is based on physicochemical indicators, biological elements and hydromorphological conditions. As part of the hydromorphological conditions assessment, the following is taken into account: spatial layout of the watercourse, water depth, bottom substrate, as well as the presence, spatial and species structure of aquatic and riparian plant communities. Considerin...

Trichloroethene (TCE) and tetrachloroethene (PCE) have been detected in water of the Triassic carbonate aquifer in Tarnowskie G?ry area since 1994. Since 2005, TCE and PCE in groundwater have been constantly monitored by the Voivodship Inspectorate for Environmental Protection in Katowice in 12 observation wells and pumping wells located in Tarnowskie G?ry and outskirts of the city. After 24 years chlorinated solvents still pose a serious environmental risk and are responsible for closure of selected wells situate...

Agricultural production is based on responding issues related to climate change in the coming years. Frequent drought seasons lead to a decline in yield production, and negative hydrological balance is expected in the future, which will also affect water consumption for agriculture [1]. Based on sap flow measurements, it is possible to optimize irrigation. For our experiment was used the grape vines in Nitra region, on which we installed Dynagage Sap Flow Sensors with the Flow 32-1K Sap flow system, which measure ...

Nowadays a typical task in water quality modelling is to simulate the pollution spreading downstream, i.e. initial and boundary conditions are known. However, in practice opposite problems may occur: pollution concentration time courses in specific locations are known (e.g. based on the on-line monitoring), but the position of the pollution source is unknown. This type of task can occur in case of accidental pollution and is named as an inverse task. Particular importance has the inverse task application in urban ...

The population of Lviv (Ukraine) together with the suburban area is about 1 million inhabitants, which creates significant anthropogenic pressure on the environment. Suburban area, which is characterized by a wealth of natural resources - diverse landscapes, forests, water sources, therapeutic waters, is exposed to "creeping urbanization". At present, the geography of recreational use of natural objects is considerably expanded. The greatest burden of holidaymakers of today falls on the suburban area of the city w...

The conceptual basis for the creation of a forecast-analytical system that allows to predict the pollution and to control the purification of oil-containing sediments of small rivers are considered in this article. Oil content of bottom sediments creates the risk of secondary water pollution not only by substances entering the sludge. More dangerous products of degradation are formed in the result of the activity of the indigenous microorganisms, that inhabit the bottom of aquatic environment. Forecasting the dyna...

Measuring soil moisture it is usually not performed on a daily time step due to financial costs, time-consuming measurements and variability of the weather. However, since this information is an important part of many hydrological and water management studies, the author tries to solve this situation by proposing a suitable interpolation method. The goal is to predict daily moisture values so that their conformity with the test data is as high as possible. The calculation is based on the use of soil moisture data ...

This study investigates content of radioactive gas radon ? Rn-222 in a number of sources of surface waters of different type (spring, artesian, well, river etc.), located in the territory of Kartli artesian basin, Georgia. Water samples were selected from 23 sources. Researches were carried out in the period January-December; samples from several locations were selected monthly. Electronic radon detector RAD7 was used for radon content determination. It was established, that radon content ranged depending on the s...

The effects of global warming are becoming more and more felt by changing climatic conditions across the entire surface of the earth. Thus, in some regions of the Earth's surface, catastrophic floods have begun to occur more and more often due to the increase in both the occurrence frequency and the intensity of torrential rains. In order to reduce the flood damage, it is necessary to prepare hazard maps and flood risk maps. These maps are prepared using hydraulic simulation of the flood propagation on the waterco...

Fractal geometry in recent years became a useful tool used in many scientific fields. One of the directions of development of that tool was also an attempt as using it for describing the morphology and granulometry of solid phase contained in various suspensions. While monofractals are used primarily to describe the space occupied, multifractals can be used to describe entire sets of data. (The set of data could be: various data series, distributions of physical quantities (such as, for example, particle size dist...

In connection with the production and distribution of drinking water it is necessary to take into consideration the possibility of an emergency, which in this concept means undesirable effects of forces and phenomena endangering human health, property, goods, and, last but not least, also the environment. These are natural hazards and anthropogenic hazards or their combination. It is therefore necessary to eliminate at least partially these hazards and minimize their adverse effects. To eliminate hazards, a risk a...

The article represents the results of a multi-year (1995-2011) monitoring of wind waves and wind parameters in the northwestern part of the Black Sea. The author gives a clear-cut presentation of the regime and extreme characteristics of wind waves and wind speed of the northwestern shelf of the Black Sea. The measurements were carried out on a stationary offshore platform Golitsino-4, located 50 km from the shore. A twisted resistive wave gage with a sampling resolution of 4 Hz and the possibility of registering ...

Brief The JOINTISZA Project (Strengthening cooperation between river basin management planning and flood risk prevention to enhance the stats of waters of the Tisza River Basin) creates transnational cooperation for next two years in the largest sub-basin of the Danube Basin. The project is funded through the Interreg VB Program of the European Union, the Danube Transnational Program (DTP 2014-2020) component, Priority Axis 2 (Responsibility for Environment and Culture in the Danube Region), Component 2.1 (Strengt...

The low head hydropower development ?Capra VI and VII? consists of two small hydropower (SHP) stations accomplished in sequence on the homonym stream in Arge? County, center Romania, each of them less than 1MW. The SHPs, study case for this paper, follow the European directives regarding the water, the environment and the green energy. Their accomplishment was based on the existing delimitation of the minor river bed for which it was noticed that the ichthyofaunal environmental conditions are not entirely achieved...

The main objective of this paper was to assess the water quality in Siret, in the Galati area. Galati is a port town on the Danube River in south-eastern of Romania. For the purpose of carrying out these studies, water samples from ten Siret sites were taken. Water quality has been monitored between November 2016 and December 2017. Physical and chemical characteristics of water were performed. The PFP7 Flam Photometer was used for potassium and calcium ions determination. An UV-VIS Specord 210 Spectrophotometer wa...

The main aim of this paper is to investigate possibility of use evapotranspiration (ET) data derived from the Surface Energy Balance Algorithm for Land (SEBAL) based on Earth Observation (EO) and local meteorological station (Eddy Covariance -EC - flux tower) data to improve simulation of Soil and Water Assessment Tool (SWAT) for catchment with significant area of wetland, case study of the Upper-Biebrza catchment (North-East Poland). The Upper-Biebrza SWAT model was set for 1951-2016 in which potential evapotrans...

Underground waters in St. Petersburg are strategic reserve of drinking water. Dense urban development, motor transport and industrial enterprises directly affect the quality of groundwater. In addition, groundwater can also carry pollutants into the Gulf of Finland. The main purpose of this article was to assess the state of groundwater in the coastal part of St. Petersburg. The study was based on the processing of laboratory analyzes primary results of water samples collected in the framework of state monitoring ...

It is very useful to use technologies of various fields. An important position in the field of knowledge engineering and knowledge technologies is the so-called decision support systems. The paper gives an overview of this highly exploited field of modern information technology applications, provides basic information on such systems, their architecture, the possibilities of their application, and some typical uses in the field of water management. Questions concerning effects and contradictions of multipurpose wa...

Due to the occurrence of unfavorable phenomena of droughts and water scarcity in Poland, actions aimed to preserve and improve the state of water resources, such as the realization of small water retention, are considered valued. Small water retention contributes to the mitigation of the effects of water resources defficiency and fulfills a variety of functions influencing natural environment, farming and forestry. The paper aims to determine the level of implementation of small water retention programmes in Polan...

In many industrial processes, it is necessary to separate the solid phase from water or an aqueous solution. Gravitational methods are often used for this purpose (beneficial energetically), e.g. a sedimentation process. However, due to the low efficiency of the classical sedimentation process, it is necessary to intensify this process, e.g. by means of a coagulation process or flocculation process. The effectiveness of the coagulation process depends on a number of factors: dose and type of coagulant, type and co...

Water can be found everywhere and plays an important role in human life and equilibrium of the environment. The agriculture, industry and urbanization have had and have a special impact on the biodiversity and water necessity. To establish the line at which a pressure is considered significant, meaning if due to this pressure the surface water do not reach ?good status? it will be made an analysis of pressure and impact on the recommendation of the Water Framework Directive and national methodologies, but taking i...

Health and working efficiency of river and marine craft crews depend largely on the quality of drinking water. In this respect, autonomous water treatment systems for ships are of extreme importance, which should be efficient, reliable, and safe providing required quality of drinking water by all chemical and microbiological indicators. The article analyzes existing methods of cleaning, disinfecting and conditioning drinking water for ships. Methods of maintaining drinking water quality during prolonged storage in...

Through this study and researches carried out in this paper, it was attempted to highlight the need for the re-equipment of the treatment station in a town with 6000 inhabitants due to the high exploitation costs, the lack of a constant discharge that satisfies the local water requirements and the quality of the drinking water currently distributed fully meet the applicable drinking law. This article presents also the exploitation optimization (from the energy point of view) of a drinking water treatment plant, ba...

Hydrobiological monitoring of selected pools (alluvial oxbow) was carried in the K?ran?-Hrb??kovy t?n? Nature Reserve (Czech Republic) between 2015 and 2017. The pools represent a residual aquatic ecosystems of original inundation floodplain of the Elbe River, before river stream regulation. The regular samplings were performed every four weeks and more than one-year cycle was covered. Water quality parameters (temperature, conductivity, pH, dissolved oxygen and transparency were measured in the field. The level o...

This paper is a sequence that is part of the extensive analysis of the Danube Delta genesis. Sacalin island is a territory formed in the Black Sea, a short distance from the Romanian coast, in the south of the Saint Gheorghe branch of the Danube Delta, the main source of transport for alluviums. The history of this new territory is relatively recent. The first mention was in 1771. In 1856, Captain Thomas Spratt made a new map, in which the island of Sacalin appeared with two submerged nuclei. In 1924, Romanian res...

This paper investigates a theoretical aspect of application of partial correlation functions in hydrological system analysis. The functioning of hydrological system is simulated with the conceptual mathematical model consisting of series of linear reservoirs where the inputs are synthetic time series representing rainfall on catchment and the resulting output time series represents the discharge from spring. The partial correlation functions are calculated for the input and output time series describing specific h...

At uranium ore deposits surface waters and local streams are important for the environment. Because these are affected by uranium-bearing acid mine drainage and dissolved uranium is moderated by dilution and sorption uptake by stream sediments. Depend on the mineral alteration and in the case of the iron existence, acid drainage forms in the streams. In this case surface waters and streams become a significant mechanism for mobilization of suspended uranium particles. The aim of this study is to assess the acid mi...

The study pertains to a regional and local context of the adaptation to climate change and explores the main international and European Union decisions in this regard, as well as the goals set for Latvia. The concept of adaptation is clearly connected with the drafting of sustainable development policy and must be handled at different levels. The study analyses the examples of international and local projects used in the situation of Latvia and the documents drafted by local governments, facilitating implementatio...

This paper deals with disinfection of drinking water at пїЅAquatim S.AпїЅ. The disinfection plant is part of an investment plan to provide conformation with the Romanian Law 485/2002 concerning drinking water quality and European Union Water Frame Directive. The new facility employs modern techniques of storage, dosage, injection and neutralization of chlorine. Under these circumstances, the risk of chlorine leakage decreased and increased the accuracy of chlorine dosage. The regulation and control of the process ...

Promoting sustainable use of groundwater based on reducing pollution and on preventing later pollution is a basic desideratum of the Water Law No. 107/1996 with later additions and alterations and of the Directive 60/2000/EC in the field of water issued by the European Parliament. Water resources are a source of normal economic development: they ensure nature balance and life continuity and this is why we need to rationally use them during both normal and crisis periods (e.g., drought). Ground waters are an ecolog...

The scope of this study is the application of a new approach for the estimation of potential soil erosion using a physically-based erosion model Erosion 3D for modelling potential erosion in the Myjava River basin, Slovakia. Erosion 3D is a physically-based model for predicting soil erosion by water on agricultural land. The model is predominantly based on physical principles and it simulates surface runoff, erosion, deposition and the detachment of soil particles for single events, and provides good tool to simul...

Lake water quality determines the possibility of its using for technical purposes (as a source of drinking or industrial water) and for recreational using (swimming, angling, water sports). In modern times the water quality state is deteriorating because of excessive anthropopressure. The attempts of water quality improvement are taken via technical methods implementation. In order to predict the effects of potential restoration actions the great need exists of the models development, which can help to select the ...

The majority of current water quality measurements are based on the traditional in-situ point sampling and laboratory analysis of the samples. This method, besides being time and financially more consuming than the remote sensing, also very often lacks a sufficient spatial and temporal resolution to adequately analyse and describe different phenomena (i.e. eutrophication). In this study, we have assessed the possibility to use air-borne hyperspectral remote sensing for mapping concentrations of different water qua...

One hundred and fifty-six groundwater samples were collected from the Aosta Valley region, Italy and analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), total hardness (TH), major cations (Ca2+, Mg2+, Na+ and K+), major anions (HCO3-, F-, Cl-, NO3-, SO42-) to evaluate the hydrogeochemical characterization as well as water quality of the area. A geographic information system (GIS) tool was used to study the spatial variation in the groundwater parameters of the study area. The analytical re...

Cities have a significant contribution to the contamination of urban lakes by input with surface runoff, illegal wastewaters discharges, sewage discharges, which lead to increased eutrophication and reduce the ecological health status. Complex temporal monitoring is needed to understand the changes in water quality, including dissolved organic matter. This study presents the first temporal evaluation of dissolved organic matter from urban lakes, using fluorescence spectroscopy. Samples were collected from urban la...

There is known about 57 species of Legionella bacteria which contains at least 79 serogroups. Some of them are considered as a potential human pathogens. Legionella occurs in natural and artificial water environment, especially in technical water supplies. The main cause of infection is an inhalation of aerosol infected by the bacteria. The preliminary research was performed. The main purpose was verification of bacteria from Legionella group occurrence in hot water installations, in public buildings and assessmen...

The research analyses the five-year results of the beach marine litter monitoring programme in Latvia and looks into its potential and applicability as a tool for environmental policy making and promotion of the sustainable coastal management at municipal level. The monitoring programme, based on UNEP methodology, has been established in the year 2012 by the NGO Foundation for Environmental Education Latvia (FEE Latvia) and operates not only as a litter survey initiative as being only one coastal monitoring in the...

The land subsidence caused by underground mining results in the transformation of water relations in the Silesian Upland, which is located in southern Poland. Detailed studies were conducted in 25 water bodies formed in subsidence basins located on the Silesian Upland. The purpose of the study was to determine the temporal and spatial variability of electrolytic conductivity of the limnic waters retained in the water bodies studied. As part of field work, 12 specific electrical conductivity measurements were condu...

The Bajerka Stream (16 km long), besides the Vistula River, is a tributary to the Gocza?kowice reservoir. It is the main reservoir of drinking water for 3.5 million residents of the Silesian agglomeration. It is an artificial reservoir, created after the construction of the dam on the Vistula River. The Bajerka stream takes its origin in the dig from the Vistula River and enters into the southern part of the Gocza?kowice reservoir. This is a semi-natural stream, which is used to supply the numerous fish ponds, and...