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The estuarine region of the Don River is a unique area occupied by a complex natural-technogenic system of interacting natural, urbanized, and agrarian ecosystems. The aim of this work was to study the level and degree of mobility of heavy metals (HMs) in the soil-plant system and to perform bioindication observations in the Don River estuarine region and the Russian sector of the Taganrog Bay coast. The soil cover is represented by following soils types: Fluvisols, Haplic Chernozem, Arenosol, Solonchak. The follo...

A comparative research related to hydrogen adsorption capacity of multi wall nanotubes (MWNTs) and poly aniline (PANI) doped with Ruthenium (Ru) was carried out. Carbonic materials are considered to be one of the most promising materials for hydrogen adsorption and storage; they have different applications and fuel cells technology may be considered the most important of them. By using transitional metals for doping carbonic materials, the adsorption capacity. PANI has been prepared and doped in laboratory while M...

According to the international norms developed by the World Health Organization, water potability depends on physical and chemical factors, the absence of toxic substances and the elimination of pathogens. Water supply systems must be authorized and provide drinking water in the required amount and of a quality that complies with the legal requirements in force, so as not to affect the health of consumers. Qualitative and quantitative measurements are needed from time to time to constantly monitor the quality of w...

The presented paper identifies a potential factor that can amplify the atmospherically pollution due to drive?s biomechanics through the actuating devices and car controls. Most of the car drives neglect the operating techniques suggested by the manufactures. Thus, the overwork of the internal combustion engine amplifies the pollutant emissions. The driver position and the level of pollutant emissions can also be influenced by the heeled shoes. The delayed action of the clutch pedal and the delayed gear change lea...

Accuracy requirements in hydrographic surveys inspire drive to seek improvement in measurement devices and systems used to, amongst others, determine coordinates of the position of sounding vessel and ideally sea bed reflection points of acoustic wave. Limitation to requirements included in international rules, especially included within IHO S-44, does not fulfil expectations of principals. It is however possible to execute using modern measurement (geodesy) devices and systems. Measurements and soundings historic...

The soil is a major reservoir for carbon (C) in biosphere, containing globally twice as much C as the atmosphere and three times as much as vegetation. Soil CO2 efflux is highly sensitive to changes in surface temperature and relatively small changes in surface temperature may have a major influence on the magnitude of soil efflux. The potential increase in CO2 release from the soil caused by future elevated temperature may have a positive feedback effect on the atmospheric CO2 and global changes. For estimation o...

Cementation is one of the most effective, eco-friendly and economically advantageous techniques for removal of valuable and / or toxic metals from industrial wastewaters. Copper is among the most prevalent and valuable metal used in industry. The present study investigates an eco-friendly recovery method for the copper ions present in synthetic wastewater, by cementation, using scrap iron and no energy consumption. It was evaluated the impact on copper cementation yield, caused by the fallowing parameters: (a) ini...

High concentrations of ammonium, toxic organic compounds, pathogenic microflora make chicken manure one of the most toxic agricultural wastes. The use of chicken manure in plant growing is only possible after its treatment, e.g. by means of composting or anaerobic digestion. One of alternative ways of chicken manure treatment is its pyrolysis, as a result of which pyrolysis fuel and biochar are produced. The latter can be used as nontraditional organic fertilizer. However, the properties of biochar produced from c...

This article reveals the ecological and economic effectiveness of improvement of organization of enterprise. Each component of ecological and economic effect is represented taking time into account. The problems and current state of economic evaluation of natural and social enterprise capital are considered. The criteria of ecological and economic evaluation of enterprise activity are revealed considering the synergetic aspect. Generalized scheme of development of ecologically oriented enterprises is illustrated. ...

Oil and gas exploration in Bulgaria has been mainly conducted in Northern Bulgaria. Up to 2500 boreholes have been drilled on the territory of the country so far with a depth of several hundred meters to more than 6000 m. During drilling, groundwater with different hydrochemical properties, often with high total dissolved solids (TDS) and contents of a number of elements, have been registered. After the completion of the drillings, many of them have not been liquidated, as in some of the boreholes artesian water o...

Czestochowa is a city located in the south of Poland. It is famous, first of all, for the Black-Madonna Monastery, to which many pilgrims come by foot every year. Not everyone knows that this is a city located on the Cracow-Czestochowa Upland, which is famous for its beautiful views and areas. The Unpland is willingly visited by many tourists who travel its tourist trails by car, on foot, by bike or even on horseback. Unfortunately, both local enterprises and residents are unaware of the impact they have on the Up...

The Cracow-Czestochowa Upland is famous for interesting views and natural places to spend free time with friends or members of family. Unfortunately, both industry and residents have a negative impact on this area. Recently, people's awareness has been slowly re-evaluating. People begin to understand the need to think about the natural environment, they finally know that they are not the only species on the Earth, they do not have a special right to use the environment's resources and have found that the state of ...

In Poland there are 12 millions of households. Many people from these households, thanks to the changing legal regulations, pro-ecological actions, started to understand that their way of living and running their houses can have an influence on the natural environment. They began to think and act in an ecological way. The ecological way of living does not mean a large-scale operations, such as installing solar panels, building an eco-friendly, passive house. Simple activities such as thoughtful shopping, segregati...

For most of us, a home is more than just a collection of different rooms. For people, the home serves as a shelter from adverse weather conditions and provides a sense of security. We spend most of our time there, have fun with the nearest family, learn, work, rise children, we sleep, eat meals, we care about cleanliness and hygiene. Our home should be furnished and conducted in accordance with ourselves and our family habits. Many issues related to the ecology begin to play a large role in the topic of housekeepi...

Air transport is presented as the one of the major sectors contributing to global warming. According international reports air transport share of CO2 emissions is 2%. Overall impact to global warming is around 3%. While there is still insufficient scientific research into the impact of air transport on cloud formation from contrials, the impact of aviation on the climate caused by aviation emissions is already well-mapped. Noise pollution in airports is another significant problem. Companies try to limit noise by ...

This paper analyzes the presence of major employers in the core cities of bi-centric Hradec Kr?lov? ? Pardubice agglomeration which are the main sources of economic potential for the entire agglomeration area and important location in terms of GDP generation at national level. The presence of the different economically active entities also significantly influences the numbers of inhabitants not only residing in the agglomeration but also migrating there for work. Due to this facts both core cities face the issue o...

Evaluation of the profitability of investment projects in the oil industry have been the subject of numerous publications both international and Polish. Global primary energy consumption growth will undoubtedly cause difficulties in predicting changes of the price of crude oil and other energy sources. The strategy of reducing greenhouse gas emissions, which has being implemented in Europe, would also affect the economic viability of enhanced hydrocarbon recovery methods of injecting CO2 into the oil deposit (CO2-...

The paper is focused on the issue of the economic evaluation of the revitalization of brownfields in the form of abandoned mining areas. The issue of the abandoned mining areas is in the Czech Republic the long-time social-economic problem, which it is necessary in the close future to solve in an appropriate way. There exist more possibilities, how the issue of brownfield can be solved, however not all possible solutions it is possible to consider as optimal from the whole society point of view. The main objective...

The aim of this study was to investigate the influence of anthropogenic activities on the level of toxicity of river sediments near agricultural areas under cultivation. The evaluation of the acute toxicity of samples was carried out by contact test on earthworms of the genus Eisenia foetida. Neurotoxic potentiality of organophosphate pesticides present in the samples was assessed by measuring the inhibition of the enzyme acetylcholinesterase (AChE). Sampling was from 9 watercourses in the north Moravian and the n...

The aim of the paper is to illuminate the problem of the influence of the building material's fuel source on selected fire parameters of enclosure fires. The course of the fire is influenced by various factors, and as the fire pattern in the enclosure differs from the course of fire in the open space, so are the factors influencing the course, temperature rise or fall. The development of a fire is the term under which we understand the gradual growth and development of the fire. Within the overall fire development...

The cement concrete road pavements we can characterized with sensitivity to temperature changing and after that linear deformation, stresses owing to temperature gradients also. In pavement design we have to consider the traffic load and temperature condition. Unsuitable connection of concrete slabs has in results failure of pavements. In article is description of cement concrete pavements behavior under temperature changing and alternative solutions of structures and measures in rehabilitation design.

This paper deals with the issue of the influence of the horizontal temperature gradient (horizontal refraction) on geodetic measurements of the horizontal direction. The topic of horizontal refraction has not yet been given much attention in research, especially because it is significantly less than the effect of vertical refraction in common geodetic practice. The article presents the mathematical modelling process by solving the differential equation of wave propagation in non-homogeneous atmosphere. On this bas...

The Road materials are exposed during the operation to the effects of traffic loads and climatic influences, in particular changes in air and humidity temperatures, which are reflected by cyclical changes in pavement and subsoil. Strain of different materials is very different its the same load and depend on its deformation properties. Strain of material and substance are generally characterized by deformation characteristics that are an important input for the calculation of stresses and deformation of the paveme...

It is obvious that the presence of microfractures in a porous medium increases its permeability. What is unclear is the magnitude of this effect, as it cannot be calculated directly. With the assumption that the fractures are small channels, it is possible to calculate the permeability of a fracture at a given state. In 2018 Pasztor proved that under laboratory conditions the flow will be laminar in the channels, hence the fracture density can be easily determined from simple laboratory measurements (with the ?per...

Studies were conducted in an intensive fruit-bearing apple orchard in the South of Russia in the Chechen Republic. Layout scheme - 3,75?1,5 m, the formation of trees - a slender spindle. The object of study were apple cultivars Renet Simirenko (control), Granny Smith, Florina (M9). The main soil cultivation (autumn plowing) was carried out once in 3-4 years by garden plows or plows-lushmen at a depth of 14-16 to 18-20 cm in row-spacing and 6-12 cm in the trenches. Cropping blocks in an intensive garden with dwarf ...

The fundamental element to be ensured during laboratory tests is the control of the boundary conditions in terms of stress, strain and drainage conditions. The determination of the effective stresses is inherently associated with full saturation of soil specimen, as it allows to apply the Terzaghi's principle of effective stress. This paper describes the influence of partial saturation of soil on shear strength and deformation properties obtained from laboratory tests. The use of back pressure method, as the most ...

Air injection technology, including high?pressure air injection and in-situ combustion, is an effective method for enhanced oil recovery (EOR). It is widely accepted that, in an air injection process, the oxidation of crude oil plays an important role in the displacement mechanism in an in-situ combustion process. In recent years, thermal analysis techniques have become highly important tools for the investigation of crude oil combustion. Thermogravimetry (TG/DTG) have been widely used to characterize the oxidatio...

Soil response is an important parameter that affects plant health and its resulting quality. It also affects the intake of chemical substances. These include not only nutrients but also e.g. heavy metals. It is well known that soil fertilization using organic matter, preferably manure, positively affects soil reaction. Manure can be enriched with various substances in order to increase its efficiency. However, this may mitigate the positive effects of manure on the soil or it may have a negative impact on soil pro...

Air injection technology is an effective method for enhanced oil recovery (EOR). The advantage of this method is that it can be used for different oil reservoirs, such as light oil, medium oil and heavy oil. The composition of crude oil has an important influence on the oxidation behavior. Therefore, it is necessary to study the oxidation behavior of different crude oils. Differential scanning calorimetry (DSC) has been widely used to investigate the oxidation process of different fossil fuel, such as, crude oil, ...

Constant increase of traffic volumes exacerbates transportation problems and causes deterioration of safety and life conditions of village inhabitants in the vicinity of throughways. To reduce the adverse effect of road traffic, introduction of traffic calming devices in entry zones has been used for years. Their success in speed reduction and improvement of acoustic climate were dependent on the type of devices, their location and how frequently they were distributed along the pedestrian crossing across the throu...

Here, we developed an effective D-glucose oxidation with magnetically recoverable biocatalysts. These biocatalysts were synthesized on magnetite particles obtained by different methods, polyol and co-precipitation. These MPs were coated with a layer of silica modified with amino groups. The GOx covalent attachment has been carried out via the reaction with glutaraldehyde. We established that the method of MPs synthesis affect the enzyme catalytic activity. It should be noted that the magnetically recoverable bioca...

Here, we developed an effective D-glucose oxidation with magnetically recoverable biocatalysts. These biocatalysts were synthesized on magnetite particles obtained by different methods, polyol and co-precipitation. These MPs were coated with a layer of silica modified with amino groups. The GOx covalent attachment has been carried out via the reaction with glutaraldehyde. We established that the method of MPs synthesis affect the enzyme catalytic activity. It should be noted that the magnetically recoverable bioca...

The subject of the effectiveness of innovative processes and identifying its determinants and measurement is crucial for both researchers and practitioners. Innovative processes, due to the high amount of resources involved and the level of risk, should be prepared adequately from the perspective of the procedure of innovative activities and monitoring their effects. The effectiveness category includes not only economic, but also non-economic values. The aim of the article is to present the problem of measuring th...

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...

Rapeseed, one of the most important crops in the world, gained importance due to the use for food or industrial purposes. For obtaining high yields it is important to consider its requirements related to fertilization. The research was carried out in Ialomita County during the agricultural year 2015-2016, on cambic chernozem using two mid-early rapeseed hybrids: PR44DO6 and Harnas. The objectives of the research consisted in evaluation of the influence of mineral fertilization and hybrid on: rapeseed yield, averag...

Rapeseed, one of the most important crops in the world, gained importance due to the use for food or industrial purposes. For obtaining high yields it is important to consider its requirements related to fertilization. The research was carried out in Ialomita County during the agricultural year 2015-2016, on cambic chernozem using two mid-early rapeseed hybrids: PR44DO6 and Harnas. The objectives of the research consisted in evaluation of the influence of mineral fertilization and hybrid on: rapeseed yield, averag...

Biochar is a product of pyrolysis of biomass such as plant residues, organic wastes or etc. Being highly porous material that slowly releases nutrients, biochar is considered as an effective alternative fertilizer. It is reported that biochar properties are depending on the pyrolysis regime (e.g. pyrolysis peak temperature and duration), however information about quantitative dependences remains poor, especially for biochars made of specific substrates such as chicken manure. In this study, properties of biochars ...

One of the results of increasingly intensive development of subsurface resources is a global change in ecological and geodynamic safety of the natural environment. It is known that intensive extraction of minerals has led to the change on the subsoil and, as a consequence, to the redistribution of the deformed state of very significant volumes of rock mass with adverse consequences for the environment. For this reason, in many deposit fields geodynamic monitoring is actively carried out using ground-based technolo...

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...

In agriculture, drought is a particularly harmful natural factor. In some regions, it manifests in most agricultural crops by a moisture deficiency or an unfavorable distribution of rainfall in relation to crop requirements.To reduce the effects of drought and increase production in agriculture, it is necessary to irrigate the controlled supply of soil with additional amounts of water than those received under natural conditions, so as to ensure high and constant agricultural output.Plant development is determined...

Sealing solutions play a crucial role in any space application. In this paper we present the production and characterization of elastomeric composites for rubber seals used to prevent unwanted loss of gas or liquid. We selected the following types of elastomers: ethylene-propylene-diene terpolymers (EPDM), butyl rubber (IIR) and bromobutyl rubber (Br-IIR) that have a good behaviour in the low temperature conditions of the cosmic space. Two bipolymeric EPDM/IIR and EPDM/Br-IIR compounds were made, containing other ...

Gallium phosphide is a semiconductor material of great interest for new LED technologies. Porous AIII?V are of great interest because of their interesting optical properties different of those for bulk material. The main goal of this research work is to obtain nanostructured porous gallium phosphide (por-GaP) layers by electrochemical etching of the monocrystalline (100) p-type GaP substrate surface. The structure and surface morphology of obtained samples were studied by scanning electron microscopy (SEM), atomic...

The article describes the incidence of regulatory systems in humans for the population of the regions of Kazakhstan in conjunction with energy consumption, as well as morbidity for employees of the energy enterprise of the Republic of Kazakhstan (RK). For the period from 2001 to 2014. energy consumption in kW/h per person per year in the Republic of Kazakhstan increased by 1.9 times, by regions of the country this growth was from 1.4 times to 6 times. A statistically significant direct link between the mean level ...

Current environmental problems, which are resulting from the construction in building sector require instrument to help with reducing resource consumption and environment pollution. Life cycle Assessment (LCA) is of the building sector popularly used tool to quantify the environmental impacts. There is a large number of impact assessment methods for quantification of environmental impacts in life cycle. LCA approach can be directly applied to the building sector. However, buildings are exceptional products and hav...

The paper deals with the purchase and sale of electricity in companies like huge opencast brown coal mine. Regulation of electric energy usage is still an underrated component of automatization equipment in some companies. If good energy regulation methods are being used, not only financial saving will be achieved, but also energy supply and distribution system quality will get better. This article describes one of the most important systems for saving money and effectively managing the use of electricity in the m...

This article is referring to an analysis regarding the skating temperature variation and the electrical power energy consumption obtained by a removable outdoor ice rink, which was seasonal installed in the exterior of a big size commercial building in Romania. The electrical energy power consumption was performed during a period of five years, between 2014/2015, 2015/2016, 2016/2017 and 2017/2018, starting with the 15th of November and ending with the 15th of March, each period. The skating rink temperature varia...

Glass and ceramic industries fall into the category of energy-intensive emitting combustion gases and particulate matter to the air and considered as Integrated Pollution Prevention and Control installations both in the European Union and Russia. Since early 2000s, traditional sub-sectors including tile and brick manufacturing have been participating in a number of pilot projects intended to assess their environmental performance and energy efficiency evaluate opportunities for implementing Best Available Techniqu...

This paper addresses the possibility of using poultry manure pyrolysis to obtain energy-efficient products. Poultry manure pyrolysis is the intended technology of combustion for both ecological and energy generation purposes, obtaining coke and gas fuel. The waste subjected to pyrolysis had a behaviour very close to that of the inferior coal. This is also confirmed by the elemental analysis; high moisture value raising issues when direct combustion is used. The combustion of the poultry manure through various tech...

Nowadays, the role of healthy and sustainable consumption is increasing in Latvia. This trend focuses on animal welfare issues, promotion of organic products and enhancing of local businesses? green competiveness. Owing to the growing demand for organic products, the number of organic farms in Latvia is increasing. However, not all local producers are aware of their marketing strategy?s compliance with the real situation in the market. Today, customers? needs are more sophisticated and they are knowledgeable about...