Browse

Trends in waste generation show an increase in the volumes of waste produced worldwide. Currently, municipal solid waste management is one of the primary tasks for environmental authorities in Poland due to industrialization and economic growth, growing income, and an increase in quantity and variation in the types of waste generated. Conventional treatments of municipal solid waste using landfilling have become more difficult and expensive in Poland due to land deficiency and new environmental policies. The objec...

In recent years ,highway of our country grows vigorously now has become a stimulating domestic demand in the highway construction, and the important factors that promote the rapid development of national economy, it attaches great importance to by governments at all levels, highways extending unceasingly, also provides favourable conditions for the development of road transport. To solve the above problems in practical engineering, we must be to deal with natural foundation, and road in deep soft soil, after proce...

Nomenclature and chemistry of mafic minerals such as pyroxene, amphibole, and mica within the felsic and mafic igneous components have important role in the identification of the nature of the magma. The different compositions with the different proportions of the mineral chemistry reflects their, thermobarometry, emplacement depth and tectonic setting with the relation to their Fe, Mg, Al and Ti contents. Pyroxene, amphibole and mica behavior are selected from the shoshonotic, silica saturated alkaline and silica...

The contribution brings description of the mechanical properties of igneous rocks, particularly syenite from Kamenn? quarry within the T?eb?? Massif in Czech Republic. It is mainly focused on impact of triaxial compression testing in order to obtain data about the rock applicable for designing underground structures located at greater depths below the surface. The mechanical properties were determined from series of laboratory tests consisting of following procedures: (1) indirect tensile testing, (2) uniaxial com...

Building Information Modeling, in the broader concept of Building Information Management, is becoming a potentially important technology for maintaining and unlocking knowledge, as well as for promoting collaboration between participants in both investment and communication processes throughout the building's life cycle. Building Information Modeling can never really be just technology, software, or 3D object modeling. It requires knowledge and understanding of a number of abstract modeling concepts. Additionally,...

Fennel (Foeniculum) is a member of the Apiaceae family, the most cultivated fennel cultivars belong to subspecies vulgare. This paper aim is to obtain essential oil from Foeniculum vulgare (FEO) seeds cultivated in the western part of Romania and to characterize the FEO in terms of chemical composition, herbicidal and antibacterial properties. Fennel essential oil was obtained by water vapour entrainment and the chemical composition of the oil was determined by GS-MS.The herbicidal effect was studied against weed ...

Fennel (Foeniculum) is a member of the Apiaceae family, the most cultivated fennel cultivars belong to subspecies vulgare. This paper aim is to obtain essential oil from Foeniculum vulgare (FEO) seeds cultivated in the western part of Romania and to characterize the FEO in terms of chemical composition, herbicidal and antibacterial properties. Fennel essential oil was obtained by water vapour entrainment and the chemical composition of the oil was determined by GS-MS.The herbicidal effect was studied against weed ...

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...

In the course of model experiments, the biological properties of ordinary chernozem at oil pollution of 5% and 10% of soil mass and subsequent introduction of biologically active substances such as urea and potassium humate were studied. The results of bioremediation of oil-contaminated chernozem on the 30th, 60th and 90th day have been assessed by its biological properties: the activity of the phosphatase, catalase and invertase, emission of carbon dioxide. The phosphatase and catalase activity have shown the mos...

Variations of biological properties (3, 30, 90 days) of chernozem under the impact of antibiotics (ampicillin, streptomycin, tylosin) and pesticides (systemic fungicide input) in the concentration of 500 mg/kg of soil have been studied in simulation experiments. Addition of biocides varies the enumeration of microorganisms and enzymatic activity of soils. Correlation analysis revealed positive interrelation between enzymes of the two considered classes (dehydrogenase, invertase) with enumeration of micromycetes (r...

The present paper brings to medical, agriculture and ecology specialists?attention a possibility of multivalent investigation of vegetable plants (leaves and fruits) and health of human body, in changed environment factors, due to the pollutants. Scientific studies have shown that human and plants emit electromagnetic fields. ?The aura? or corona?s image reveals information about their energetic state. Today we know that living organisms regulate all their biological processes through electromagnetic phenomena and...

Transesterification does not allow to make full conversion of oil to biodiesel because the glycerol as a by-product cannot be included in the composition of biofuel. The development of methods for full conversion of raw material to biofuel with higher yield remains entirely relevant. Interesterification, a reaction of vegetable oil with methyl acetate, constitutes a full conversion process which has not been investigated sufficiently. Instead of glycerol, the interesterification reaction gives triacetin (TA) which...

The most attractive tourist object of the West-Arctic region of Russia is Solovetsky Island. However, every year increasing the tourist flow has anthropogenic impact on unique Arctic areas. This article presents the features of the biogenic elements, oil products and heavy metals accumulation in the soils of the Solovetsky settlement (Bolshoy Solovetsky Island in the Solovetsky Islands archipelago) in order to determine the level of anthropogenic impact on these territories. The data of the physicochemical paramet...

The composition of micromycetes of rocks and deposits of the caves Kinderlinskaya and Oktyabrskaya, located in the Republic of Bashkortostan, Russia, have been studied. The caves are formed in the upper Devonian Famennian limestones. These caves differ significantly in anthropogenic load due to their different accessibility to humans. Kinderlinskaya is a horizontal cave with a large entrance often visited by tourists. It needs special climbing equipment to enter to the October cave as it is situated on the height ...

Metal-complex dyes form complex compounds with metal ions. In practice, these dyes shows very good level dyeing, have better penetration properties, can cover up for the irregularities in the substrates, are more resistant to washing processes, and are more stable to light. In molecules of metal complex dyes, pigments and inks, metals are bound that pose a serious risk to the environment in wastewater from textile and leather production. Despite the fact that today most EU countries have strict limits on the conte...

Dendroclimatic studies based on the use of various indicators of annual tree-ring structure (width, maximum density, cell wall thickness, lumen size etc.) have become widespread over the past decade. However, reconstructions of climatic characteristics revealed limitations associated with the use of both the width and density of annual rings. In particular, annual ring width, in the high latitudes of the Northern Hemisphere and in mountain regions, is usually closely related either with June, or June and July air ...

Special orientation during logging is a very important task, and it is essential in almost all borehole tools. For this purpose, various orientation sensors (such as accelerometers, magnetometers, and others) are usually used. During logging, the task is being complicated with increasing temperature range and device vibrations due to the movement along the borehole. Thus, this paper describes experimental results in the downhole logging of the developed digital spatial orientation module, which was integrated into...

This paper compares the indicators of spatial development for the road network of Croatia towards chosen countries in Europe and on a county level in Croatia. It also shows the number of traffic accidents per counties and links it with indicators of spatial development. The paper presents the results of the research of spatial distribution of traffic accidents in Croatia by counties. An example of a hazardous site identification on the A6 motorway is provided by the accident data report. All the comparisons and an...

Sustainable development of the state or the city as a whole is conditioned mainly by the sustainable development of its individual parts which also include water management infrastructure containing the sewer system. The article deals with the evaluation of the technical condition of the sewer network in the municipality Zaben in the Czech Republic. The first part of the paper describes the basic information about the sewer network in the municipality, its location, condition, age, etc. This part is followed by th...

In the context of sustainable development, special emphasis is assigned on the use of renewable and non-polluting energy sources. An important potential is due to the solar energy. There are several ways to convert solar radiant energy into useful energy forms, the most direct of which is to obtain electricity by using photovoltaic cells grouped into photovoltaic panels. Considering all the factors that contribute to the performances of a solar cell, as there are: solar radiation, generated power, energy productio...

Recently, hydrothermal catalytic process in reservoir conditions (in-situ upgrading) has got remarkable attentions. In this study, the feasibility of the in-situ upgrading of Ashal?cha crude oil (Tatarstan region, Russia) using steam and catalyst co-injection was investigated at the temperature of 350 В°C under high pressure for 24h using a stainless-steel 500-ml batch reactor. The changes in the density/API gravity, viscosity, chemical composition (SARA fractions, the composition of saturates), and elemental comp...

This paper presents the results of the study of Kraft lignin hydrogenolysis process, using 5%Pd/C. The catalyst was investigated using the following physico-chemical methods: X-ray photoelectron spectroscopy, infrared spectroscopy of diffuse reflection of the adsorption of CO (DRIEFT), transmission electron microscopy, thermal gravimetric analysis, differential scanning calorimetry, the low-temperature nitrogen adsorption. Among the products obtained during hydrogenolysis of lignin the most promising for fuels are...

The present work aims to present how to identify the causes and sub-cases that lead to delays in the implementation of the projects with non-reimbursable financing using the cause-effect diagram (Ishikawa), as well as how to combat the main causes. The importance of timely identification of the major issues and the concentration of the management teams in solving them can reduce the risk of losing the grant, avoiding the decommissioning of the European funds, while helping to increase their absorption. Projects wi...

In this paper, a pipeline implementing a multi-scale approach that can be used for modelling different steps of aerogel production is presented. Closely integrated modulesfor aerogel structures generation, properties prediction and adsorption, diffusion and chromatography processes modelling provide various options for systematic and comprehensive study of aerogels by performing computational experiments, which allows to reduce number of laboratory experiments. The results of pipeline validation are presented for ...

The iron phosphates coagulant is commonly used in lake restoration to improve water quality and eliminate cyanobacteria bloom. Nevertheless, the short-term abiotic environment transformation in particular inside macrophytes communities is still not sufficiently studied. The field experiments were carried out in mesocosms installed in Chara hispida community. This species is characteristic for eutrophic lakes, therefore is strongly vulnerable to restoration treatments. In the study five parameters were analysed: pH...

The cementing of wellbores is of the utmost importance at each stage of the drilling jobs. Regardless the conditions in the well, the aim of the cementing job is to efficiently seal the annular space between the casing and the wellbore wall, and to liquidate absorptive zones and also the flow of fluids in the annulus. The properly performed cementing job guarantees successful and safe exploitation of the well. A correctly performed cementing job in a borehole depends on the design of the borehole, geologic-reservo...

The discovery of Bakyrchik gold-sulfide black shale deposit was in 1953. It is situated in Western Kalba metallogenic zone, originated in late Paleozoic age as a separated line between palaeocontinents of Kazakhstan and Altai-Mongol. The Bakyrchik deposit has acicular arsenopyrite and arsenical pyrite containing micron-size (2-5 ?m) gold inclusions. It is large gold reserve (280 tons) in black shales of northern east Kazakhstan. The gold is associated with acicular arsenopyrite, lesser extent of pyrite. The sulfid...

Oregano, (Origanumvulgare), known in our country as bumblebee or marjoram, belonging to the Lamiaceae family and is used as spice or medicinal plant. This study was conducted to evaluate the chemical composition, antifungal and antioxidant properties of Origanumvulgare plant and oil.The chemical composition of Origanumvulgareplant samples were performed using the official AOAC methods in the laboratories of the Interdisciplinary Research Platform of BUASVM from Timisoara. Alcoholic extracts of Origanumvulgareplant...

Oregano, (Origanumvulgare), known in our country as bumblebee or marjoram, belonging to the Lamiaceae family and is used as spice or medicinal plant. This study was conducted to evaluate the chemical composition, antifungal and antioxidant properties of Origanumvulgare plant and oil.The chemical composition of Origanumvulgareplant samples were performed using the official AOAC methods in the laboratories of the Interdisciplinary Research Platform of BUASVM from Timisoara. Alcoholic extracts of Origanumvulgareplant...

New efficient ways of processing mineral raw materials are one of the determinants of scientific and technological progress. In recent years, there has been a tendency to reduce the metal content and complicate the mineral composition of processed ore raw materials, and increase requirements for environmental protection. All this leads to a rise in the cost of mining and extraction of useful components. The ever-growing demand for metals leads to the need to use poor ore, deposits lying at great depths, dumps of m...

Global issues such as resource scarcity, climate change, land and ocean pollution linked to the widespread growth model of production and consumption have led to the introduction of many concepts and approaches such as 'sustainable development' and 'green growth', and etc. It is also a circular economy, and it has many similarities to these concepts and approaches that deal with the relationship between people and their environment. However, it has distinctive use and, in principle, has more radical consequences t...

The purpose of this paper is to determine the rate of methane (explosive gas) and of carbon dioxide (asphyxiating gas) in the mine workings of Dej salt mine. In Romania there are six salt mines which exploit the salt through underground mine workings: Dej salt mine, Tg. Ocna salt mine, Slanic Prahova salt mine, Ocnele Mari salt mine, Cacica salt mine, and Praid salt mine. The purpose of the present paper work is to establish the methane release (explosive gas) and the carbon dioxide release regime in mine workings...

This study reviews the problem of creating an algorithm for classifying objects in a Grid system, which will allow the automation of this process to proceed. Splitting objects into classes allows you to effectively manage the resources and processes that occur in a distributed system. Classification according to the current values of characteristics, by reference values of characteristics, with an analysis of the original causes of the result and also a modeled classification is considered. The problem of determin...

The impact of climate changes on rural areas will take place in the context of many and dynamic political, economic, social, and land-use trends, the focus being on water supply, food security, agricultural incomes and rural infrastructure. Adapting rural areas to climate changes challenges is not an easy task and involves complex and multi-dimensional processes which are developed at different scales. Adopting and implementing adaptation measures for a climate smart and resilient rural space is only a stage (whic...

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 effect of coke formation on the pore structure and permeability in the process of the in-situ upgrading of heavy oil under supercritical condition has attracted more and more attention. Studying coke formation induced by thermal treatment is currently an important task for selecting the optimum upgrading technologies for heavy and extra-heavy oils. This research is intended to evaluate coke formation through the process of aquathermolysis in the condition of superheated steam injection. In this study, upgradin...

The investigated cold spring (10.4-10.9 ?C) is located onto a reverse fault zone within the Subcarpathian nappe (Vrancea region). A small travertine deposit has precipitated along the stream. The spring-water samples display an essentially calcium-bicarbonate chemical facies, indicative of a prevalently meteoric water contribution. Still significant Na and Cl concentrations - each of them amounting, when expressed as miliequivalents, to about one third of the HCO3 concentration - also suggest mixing with a signifi...

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...

The use of colored asphalt pavements plays an important role in answering the environment requirements, the operational aspects and visibility and road safety requirements. In this context, the paper deals with the possibilities of realizing colored asphalt mixtures corroborated with the ordinary tests to determine the physical and mechanical characteristics. Meanwhile, the article presents the advantages of using colored asphalt mixtures in different cases for improving road safety.

During the Thirty Years? War in Europe, the Czech Lands represented one of its most frequent battlefields. In 1647, when General Wrangel led a Swedish campaign towards the central parts of the Habsburg Monarchy, a short clash between the Swedes and the Imperial army took place in Western Bohemia near to the castle of T?ebel. Previous studies of iconographic sources published in contemporary documentary writings, supplemented by field archaeological work, have shown that the Hrotek Hill near Plan? was the likely po...

This paper examines comfort and cohesion in outdoor and semi out door spaces of historical environment with a hot and dry climate using the example of the traditional streets, courtyards and recesses of Sanliurfa, Turkey. The goal of this research is to investigate the design principles for achieving comfort and social cohesion in the historical environment of Sanliurfa traditional architecture. In Sanliurfa historical settlement, where traditions and customs have an important role in the social structure, has cre...

One of the possible solutions to reduce or eliminate landfill gas emissions is to cover the landfill with bioactive cover layer, where methane is oxidized in-situ. The main innovation of the closure project at Kudjape landfill, Estonia, was to extract the < 40 mm fine fraction from the same landfill cell by using landfill mining technology in order to construct a methane degradation cover and to restore the previous landfill area for the benefit of the community. European larch (Larix decidua) and Norway spruce (P...

The present study explores the impact of natural and climatic factors on the conditions and efficiency of the activities of Russian public utility companies in the context of the theory of the economic system's adaptation to the rapid changes occurring in the natural and climatic conditions using the example of the Far North. Given the change and uncertainty in the factors of the external and internal environment for public utility companies, innovative processes in the field of management are regarded as an imman...

Due to the fact that the printing industry is one of the largest production departments in the EU, its impact on the environment cannot be neglected. The printing activity is based on the use of appropriate substances and chemical preparations. They occur mainly at the stage of preparing printing material and subsequent printing. Chemical and photochemical processes occurring during printing, the use of water and air for cooling machines and devices as well as production wastes - these are factors that may affect ...

The process of underground hard coal exploitation is accompanied by the release of methane. This phenomenon has been present in the majority of Polish hard coal mines, with the intensity of methane release from hard coal seams exhibiting a growing trend on a year-by-year basis. The highest amount of this gas is emitted into the atmosphere, with only a small part being collected by methane drainage systems and subsequently used for industrial purposes. In 2017, all the hard coal mines in Poland released 611.15 mill...

Currently, it is possible to capture geospatial data, which represents terrain surfaces in the form of point cloud, by using two diametrically different technologies: laser scanning and ?structure from motion? technology which is based on sets of properly acquired 2D photos. Both of these technologies allow to obtain a substantially the same product - point cloud, although it is a direct measurement product from laser scanning technology (TLS), while in the case of the structure from motion technology it is a deri...

Municipal waste sludge belongs to a specific type of wastes formed in a process of mechanical, biological and chemical treatment of wastes. The sewage sludge, due to its variable content, constitutes a big problem with respect to optimum and safe sludge management. There is no single correct way to treat sewerage sludge. One needs to remember that the selection of the management method of the formed sludge is individual and depends to a large extends on the size of particular waste treatment plant. A subject of te...

The Verkhoyansk fold-and-thrust belt (VFTB), composed of terrigenous-carbonate rocks of the Upper Proterozoic, Paleozoic and Mesozoic age and formed in the Late Mesozoic time, stretches along the north-eastern and eastern framing of the Siberian platform. Studies were carried out (from south to north) in the Kuranakh and Kharaulakh segments of the Western-Verkhoyansk sector of VFTB and in the Olenek sector of VFTB. Structures of the Kuranakh and Kharaulakh segments have submeridional strike, and the Olenek ? subla...

The breeding value of the selection candidates is the criterion on which the best individuals are retained for breeding, corresponding to proportion of the selected individuals. When the livestock is grown in an ecological system, the only leverage by which meat production can be increased is the use of the individuals with the highest genetic merit. The average of breeding values of selected individuals coincides with genetic progression on generation, implicitly with the growing production in the considered trai...

One of the most important problems in the socio-economic development of the adjacent territories of Russia, China and Mongolia is water supply. Russian regions, including the Republic of Buryatia, the Trans-Baikal Territory and the Amur Region, are characterized by sufficient reserves of water resources, relatively evenly distributed over the territory. The structure of water use in the regions is dominated by energy and also in the Trans-Baikal Territory and the Amur Region large volumes of water consumption are ...