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In this paper we present a case study on the identification and contouring of a gas deposit, placed mainly in Pontian formations. This study is based on some geological landmarks as well as the interpretation of filtered gravimetric and magnetometric data. The gas deposits determine minimum gravimetric anomalies, under the specific geological conditions of the Transylvanian Basin. Such gravimetric minimum is determined on the one hand by the rise of the salt, and on the other hand by the mass deficit within the sa...

As an effect of globalization on natural resources demand, the need for an increasingly detailed knowledge of the geological structure of a territory and of the characteristics of these resources have also emerged. This has been the context when the administrative boundaries and the specific national policies and legislation have differentiated the current knowledge of a geological unit. For the authors of this paper, the western part of Romania is the most recent case studies where the harmonization of Romanian g...

Small and medium-sized enterprises (SMEs) use energy consulting as an important instrument for reducing information deficits when investigating savings potentials and measures for improving enterprises? energy efficiency. Since 2012, Germany has implemented a government support program to help cover the costs of energy consulting for small and medium-sized enterprises that have an energy audit carried out by a qualified consultant. This work examines the results of over 290 companies with energy balances in the pe...

Currently there is no uniform method for the economic evaluation of construction and exploitation costs of underground structures that would incorporate not only construction costs, but also costs associated with possible accidents and damage during exploitation. At the same time, we believe that in such cases costs should be evaluated in advance, because these situations often result in catastrophes with incredibly high liquidation costs. In this paper our method for evaluation of costs of underground constructio...

In this paper will be indicated the different behaviour of buildings in Bucharest, mistakes in design and execution, state of codes and regulations in the XXth century, revealing what went wrong. Several national and international research programs were done in the past to understand the causes for the Vrancea seismicity, to study the seismic wave propagation in the region and to assess seismic hazard for Bucharest and other communities. Especially in Bucharest, high-quality seismic data were acquired obtaining a ...

Forest fires occur for natural and anthropogenic reasons. In the vicinity of settlements, forest fires occur mainly as a result of human activity. The occurrence of a forest fire is characterized by the presence of a person in a forested area (anthropogenic load), the presence of ignition sources and the process of forest fuel ignition. It is important to understand how the anthropogenic load is distributed around the locality and to simulate it using computer technology. The purpose of the work is a numerical stu...

The paper focuses on interconnectedness of human and environment with rapidly rising urban space developments in Lahore ? the second largest city of Pakistan. The city has a long history of more than 2000 years. It reflects the developmental aspects of Mughal Era and remnants of British colonial rule. From 1999 to 2011 the growth rate of the city in terms of built up area has doubled. Thus, mounting a huge pressure on the city administration responsible of managing infrastructure and slum settlements. Due to rapid...

The aim of work was to evaluate the influence of the grown locality on heavy metal intake (Zn, Cu, Cr, Co, Ni, Pb and Cd) from the soil to the soybean seeds. The research was realised in five different localities of Slovakia using the same soybean cultivar (Mentor). The total content of heavy metals and their mobile forms in individual soils was compared with the limit values according to Law 220/2004 and the European Commission (2006). In all soil samples the determined total content of Cd and in one locality als...

In the NW part of the Romania, there are geological conditions that allow to geothermal phenomena to manifest on the surface of the Earth. The limited exploitation of this energy resource is still limited by existing technologies and by the high cost of deep-water equipment. For a good image of the Romania's geothermal potential, we present, in our paper, the temperature map at 3000 m deep and the geothermal flow map on the surface. These maps were made with the Surfer program, based on the data obtained through d...

During the last years, under Schlumberger brand, several methods have been refined for determining detailed characteristics of geological formations, as they are necessary in the assessment of shale gas potential based on drilling core investigations, wells diagraphies investigations, seismic investigations, and combination of all these. The correct determination of lithofacies of the cores leads to a quality diagnosis of shales reservoirs. The accurate mineralogy input is obtained by Litho Scanner in the sCore li...

The article focusses on ageing cycling infrastructure and issues of sustainability from the perspective of pavement management system and economic implications. Light cycling paths pavements are well suited to bear non-motorised traffic without suffering plastic deformations. Given that draining is maintained and adjacent vegetation is regularly cut, these pavements can perform well for very long periods. That said, the pavements still succumb to climatic effects acting on the pavement?s surfacing. Chemical proper...

Romanian economy is based, to a certain extent, on chemical industry and its approximately 300 SEVESO operators present on its territory. This situation implies numerous transports of raw materials or final products between operators in the chemical industry and/or other economic entities. A considerable number of cargos may consist in actual shipments of hazardous materials (HAZMAT), fact that can lead to an important issue: in Romania, a developing country, the current road transport infrastructure for dangerous...

The article presents standard and alternative methods of managing sewage sludge and the biodegradable fraction of municipal waste. The work focuses on sewage sludge and bio-waste not contaminated with heavy metals. The absence of the abovementioned impurities enables their processing that they can become a valuable product with high fertilizer value. In the work, special emphasis was placed on techniques similar to natural, i.e. composting and vermicomposting. These two methods are most widely described because th...

The main purpose of this study was to evaluate the capacity of an activated zeolite for ammonium removal in fixed-bed column. The influence of process parameters, such as activated natural zeolite quantity (1 - 6 g) and ammonium initial concentration (10 - 70 mg/L) was investigated. The experimental results were analyzed using the most common sorption kinetic models, such as Thomas, Adam-Bohart, as well Clark, by linear regression analysis in order to characterize the removal process. The obtained values showed th...

This paper presents a cross-sectional analysis of the noise inside the engine room of a commercial ship that navigates a section of the Romanian Danube segment. The noises of river ships are heard inside the ship by the crew as well as by the passengers, but also on the outside of the ship by the aquatic and riverside fauna. Determinations took place on a 6-bar pusher ship for 3 days, on the Danube, between 17 and 19 February 2018, on the route Braila (170 km) - Calarasi (km 365). On average, were made about 100 k...

The onshore field X is located in the Getic Basin of Romania, 100 km far from Bucharest. This 15km by 2km field was discovered by exploration department in the 1951 year. Following drilling of down-dip appraisal wells from 1951-1952, this field was established as one of the largest oil field in the Getic Basin, with more than 250 wells drilled. Based on the oil production, an Integrated Reservoir Study have been developed in 2019, in order to find new development opportunities for remaining oil in place. The wells...

The geological modeling is an actively developing area of petroleum geoscience. One of the limiting factors for geological modeling is the processing of input data, which is a routine process and can be automatized. The paper describes the screening for an effective approach and development of the workflow allowing automatical depth matching of well logs with the use of statistical methods of data analysis basing on the real set of wells. The purpose of this work is to study the machine learning algorithms applica...

Climate change and assessment of potential impacts to reduce it is one of the most pressing and priority issues on the agenda of the international community. Developing environmental assessment of alternative energy sources based on life cycle assessment (LCA) is a way to assess climate risks, because it contains the potential of global warming, and therefore allows calculating the carbon footprint of any energy source. However, to properly assess the environmental impacts of alternative energy source it is also i...

A survey carried out in October 2018 on Cricovului Sarat Valley, along a distance of about 5 km that crossed the Gornet-Cricov commune revealed few ecological aspects of this Subcarpathian area located in Prahova County, Romania. We inventoried the resources of vegetation and associated invertebrates, listing the most relevant taxons that populate the river banks. So far, representatives from 15 plant families (Adoxaceae, Amaranthaceae, Apiaceae, Asteraceae, Caryophyllaceae, Euphorbiaceae, Fabaceae, Plantaginaceae...

The decrease in fuel consumption for energy production occurs mainly due to the expense of domestic hard coal. This phenomenon is beneficial due to ecological reasons as well as due to short-term economic effects. Pollution of the natural environment in Poland by industrial plants has decreased, while sulfur dioxide emission has decreased. The greatest progress was achieved in reducing dust emissions by installing electrostatic precipitators with efficiency over 95%. The least progress has been made in reducing ca...

Generally, in Romania, the management of landfills is a major concern with regard to existing circumstances. Although the percentage of recycled waste is increasing, there are still many previously built landfills that are currently in the post-management phase. The negative impact of landfills is represented by leachate built-ups, that contains heavy metals and can pollute soil, groundwater and surface waters and endanger population?s health. European waste legislation requires closure of non-compliant landfills ...

The article presents the analysis of the environmental benefits from the optimization of urban traffic flow or from the measures to alleviate slow traffic flow (congestions). The environmental benefits are evaluated by assessing the decrease in the external costs due to the reduced emissions of such pollutants as carbon dioxide, methane, carbon monoxide and nitrogen oxides. The emissions of pollutants are estimated according to the calculations of fuel consumption. To asses the potential environmental benefits, th...

The article describes the results of implementation tracer studies at one of the complex fractured-cavernous carbonate reservoir in the Republic of Tatarstan. Water injection in one well leaded to the water cut rise in one producer well then neighbor wells are insignificantly reacting on the pressure maintenance. On one hand low efficiency of water flooding in carbonates can be caused by hydrophobic properties of minerals like calcite and by heterogeneity of the void space including presence of fractures and caver...

Among the methods used in the management of municipal waste, one can distinguish, their combustion in installations for the thermal treatment of municipal waste (ITPOK). The advantage of this method implemented in modern installations is the reduction of the mass and volume of waste with simultaneous very efficient cogeneration of heat and electricity, while minimizing emissions. One of the possibilities of including ITPOK in the implementation of the Circular Economy idea regarding raw material recovery is the us...

Since 1990, there have been changes regarding land use and land cover in Romania, due to the new socio-economic conditions. The main objective of this study was to evaluate the landscape fragmentation in the Romanian Subcarpathian area, during the post-communism period, determined by anthropic activities in the context of new adopted regulations on agricultural land resources. We made a comparative study between Prahova Subcarpathians and Buzau Subcarpathians, characterized by similar geomorphological patterns but...

Sub-unit of the Moldo-Transylvanian Carpathians, the Ciucului Mountains are individualized in the central-southern part of them as a well-established mountain unit, limited to the west by the Ciucului Depression, with a total area of about 93720 hectares. As a whole, Ciucului Mountains, with its altitudes exceeding 1500 m, is wrapped in the form of a large isosceles triangle, based on the West, the Ciucului Depression, and a north-south ridge orientation as in general with the major structures of Carpathian Flis. ...

The aim of the paper is to analyze the impact of natural disasters on the economic activity of companies by a modified DuPont model. The proposed modified DuPont model includes ratios for economic efficiency, profitability and financial autonomy. Usually the DuPont analysis model is used to evaluate the component parts of a company's return on equity (ROE). This allows an investor to determine what financial activities are contributing most to the changes in ROE. DuPont analysis divides ROE into its constituent co...

Despite the increase of awareness and government involvement, the potential of many European countries to develop bioeconomy is still at a low level. The concept of bioeconomy is rather abstract and largely untapped. Many factors, including insufficient involvement of stakeholders in developing bio-economics strategies, which probably stem from the lack of theoretical and practical knowledge that governs this concept, technological transfer and proper exploitation of current scientific research tools, contribute t...

In this study, the anomalous geomagnetic variation related to the moderate Vrancea earthquake (Mw=5.5) on 28 October 2018 was shown. This anomaly and its associated seismicity were analyzed and compared with a similar anomaly which occurred on October 2016- May 2017. To better distinguish the seismotectonic anomalies from external geomagnetic variations (geomagnetic storms), the datasets recorded at Muntele Rosu (MLR) located inside seismogenic zone were compared with datasets recorded at Surlari (SUA) located at ...

In Bulgaria, a promising method for creating underground gas storage is the use of aquifers. The main prerequisites are: the presence of reservoir systems with a favorable combination of permeable and shielding rocks; hydrogeological and thermobaric conditions marking the chemistry and dynamics of water, the phase state and the quantities of stored gas; the structural-tectonic conditions defining the type of the perspective traps and their architecture; Neo-Seismotectonic activity, determining the degree of seismi...

Integrating conventional well log interpretation with high-resolution borehole electrical image analysis enables a complex understanding of the geological formations intercepted by exploration wells. Whereas conventional geophysical well logs allow the determination of the main reservoir parameters and the fluids distribution, borehole imaging serves as a valuable tool in sedimentary features identification and interpretation, regional dip determination, structural and tectonic elements identification, as well as ...

Obtaining reliable data on the ongoing risky geo-processes and obtaining adequate and reliable information about them on the current state of the Earth's surface is a key factor in tracking the origin and dynamics of landslide processes as well as assessing the resulting threats to the population and infrastructure. According to information provided by the national authority responsible for the monitoring and keeping track of the landslides over the past two years their number has almost doubled. This is the main ...

The paper describes the results of 1D geomechanical modeling in the territory of Akan oilfield in the Republic of Tatarstan, the Russian Federation. The data of sonic and density logging, which are the basis in the construction of the geomechanical model, were analyzed. The velocity and density properties of carbonate rocks in the study area are stable both along the section and the strike. Sonic waveform logging data were processed for a number of reference wells. The results of processing were taken as the basis...

Portable Gauss meters or Tesla meters are popular, simple and non-expensive magnetometers, capable of measuring the strength and direction of magnetic field, expressed by magnetic flux density and magnetic vector. Gauss meters work on base of cable connected solenoid gauss probe and registered difference of electric potential (Hall effect). Instruments are able to measure both the intensity and direction of magnetic field, usually being applied in the electronical industry or mechanics. Due to the increasing techn...

Equipment designed for use in potentially explosive atmospheres must meet the requirements of ATEX Directive 2014/34/EU (be designed so as to avoid the ignition of the surrounding explosive atmosphere in which are intended to operate). In order to meet the requirements of the ATEX Directive 2014/34/EU, electrical equipment is usually associated to one (or more) type (s) of protection, according the EN 60079 series of standards. In case of electrical equipment that produce arcs or sparks in normal operation, the us...

As a world heritage site Rila monastery is continuously monitored, including seismically, ensuring proper maintenance and preservation for future generations. Th? instrumental data is acquired by the monastery?s accelerograph stations that are local units of the National Strong Ground Motion (SGM) Network run by the NIGGG-BAN. Considering the seismic history of our lands, it is indispensable to assess periodically the characteristics of significant earthquake impacts on important sites as this one. The current sei...

From contaminated mining areas, contaminants can migrate to different components of the environment, being favored by physicochemical transfer mechanisms such as their transfer into water. The dispersion of metallic contaminants from closed mining sites in surface waters is favored by the topography, climate and lithology of the area. In the Brad mining area, activity has ceased for about 15 years. Properly unnamed tailings and coastal galleries are a diffuse source of surface water pollution. The paper aims to as...

The article presents the results of assessing the comfort of climatic conditions for the development of tourism in the Akmola region, including in the Shchuchinsk-Borovoye resort area. The climate is one of the resources, determining the spatial organization of recreation and tourism. Any tourism and recreational activity should be based on the results of the assessment of the tourism and recreational potential of the territory. The tourism and recreational potential of the climatic resources of the Akmola region ...

Nowadays, more and more society are thinking about environmental issues, such as global climate change, environmental pollution, degraded, abandoned territories and their revitalization. Degraded areas are found in the whole world, so the importance of this issue cannot be measured only within the national level, but on a global scale. Revitalization of brownfields is a time-consuming and financially expensive. Therefore, the aim of the research is to analyse investment attraction possibilities for revitalization ...

Au mineralizations of Jales and Gralheira, located in Tras-os-Montes, near Vila Pouca de Aguiar (northern Portugal), belong to the Jales Mining District, the main historic producer of gold in Portugal. Mineralizations are hosted by syn- to late-tectonic Variscan granites and by Palaeozoic metasediments ranging in age from Ediacaran to Devonian. The studies carried out consisted of the analysis of samples from drill cores (provided by the Consortium AM- Almada Mining, S.A. and EDM, Empresa de Desenvolvimento Mineir...

Waste application, beneficial in terms of soil abundance in nutrients, cannot lead to soil contamination. The incubation experiment aimed at assessing the effect of applying sulfur pulp (waste material containing elemental sulfur) and ground phosphate rock on the availability of heavy metals in soils. The experiment was conducted on two soils with different soil category: medium and heavy, both of acid reaction and not contaminated with heavy metals. Doses of sulfur pulp and phosphate rock were set based on soil a...

The paper examines the environmental threats associated with the burning of household waste in open piles across rural communities with a focus on Neamt County (Romania) as a case study of uncontrolled waste disposal practice. This option derived from the lack of efficient municipal waste collection schemes, and on the other hand, it is a traditional disposal route for agricultural wastes besides open dumping on the surroundings. This study estimates the potential amounts of household waste uncollected by formal w...

The paper deals with the chlorine in sintering process overview. Chlorine penetrates to iron making process from raw charge already in the coke making from coal and sintering process. Beside it can causes corrosion problems in blast furnace facilities, it causes environmental problems too. It is know that sintering of iron ores is a industrial source of polychlorinated dibenzo ? p-dioxins and dibenzofurans (PCDD/Fs). The paper gives overview of how the municipal solid waste incineration (MSWI) fly ash effects on t...

This paper is an overview of the main devices for wave and wind energy extraction and how they can be combined to extract as much green energy as possible. This idea can be done by upgrading existing wind turbines with wave energy systems as well as by creating a new system that will cover the wind energy and also the wave and even solar energy. The hybrid systems are presented as a combination of existing systems. The study continues with the evaluation of the renewable resources in the Western Black Sea and to s...

In the European context, storage and recycling of sludge from sewage treatment plants is a highly discussed and sometime a controversial subject. On the other hand, sludge production at the European level it can not to be neglected, being around 13.25 Mt/year. Even if for sewage sludge management there are many alternatives (including incineration or landfilling), its use in agriculture remains a preferred option in many countries due to the results obtained by farmers in terms of productivity levels achieved for ...

Two well-known regulatory constructions ? technological regulation based on Best Available Techniques (BAT) and greenhouse gases (GHG) emissions regulation ? aim at cleaning and greening industrial production. BAT-related legislation and practices have been applied in the UK and Sweden for over 30 years, while European Parliament passed the Integrated Pollution Prevention and Control (IPPC) Directive in 1996. In Russia, the ?BAT Law? was issued in 2014, and in 2019 first IPPC installations will receive Integrated ...

To improve the fuel characteristics, bio-oil is preceded to modernization which mainly includes hydrotreatment. This work is devoted to the study of the conversion of anisole, as one of the lignin monomers, in the presence of catalysts synthesized by the hydrothermal method. Platinum and palladium catalyst deposited on the polymer matrix of hypercrosslinked polystyrene allowed achieving about 90% of anisole conversion. It was shown that during the conversion of anisole, cyclohexane, methylcyclohexane, and phenol a...

The use of environmentally friendly and biodegradable fertilizers is an area of great interest throughout the world. One such fertilizer is biochar, obtained by the method of biomass pyrolysis (manures, green mass, and mushrooms). Biochar obtained from chicken manure is discussed relatively rarely in the literature; however, it seems to be a good fertilizer because of its significant nutrient content. Moreover, preparation of biochar from chicken manure solves another serious environmental problem: its utilization...

Diversification of rural resources in Poland has the potential to create great opportunities for innovation, development and of renewable energy sources and the development of non-agricultural activities. Over 90% of the territory of Poland is a rural area characterized by specific conditions. The potential of biomass that is usefoul for energy purposes in Poland is among the highest ones in the European Union. This creates the possibility of the use of biomass for the production of liquid fuels (bioethanol, biodi...

The calcareous nannoplankton represents a group of major components of the oceanic phytoplankton, situated at the base of the trophic chain. The evolution pattern of these organisms is relevant in the past geological record and nowadays, for several research fields, such as: marine biology, marine geology, biogeochemistry, micropaleontology, biostratigraphy as well as paleogeographic and paleoclimatic reconstructions, including the paleoenvironmental ones. Taking into account that the calcareous nannoplankton spec...