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M.

2120 linked publication records

Author: M.Subject: Ecology and Environmental Protectionclear all
Showing 2001-2050 of 2120 records
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

DETERMINATION OF HEAVY METALS IN WATER OF LAKE OHRID AND IN FISH SPECIES – Leuciscus cephallus albus. JURIDICAL MASS FOR PROTECTION OF WATERS FROM POLLUTANTS

(SGEM Scientific GeoConference, 2009, S. Aliu, A. Aliu, E. Aziri, D. Dehari, H. Memedi)

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Metals occur in different forms : as ions dissolved in water, as vapours, or as salts or minerals in rock, sand and soil. They can also be bound in organic or inorganic molecules, or attached to particles in the air. Both natural anthropogenic processes and sources emit metals into air and water. The effects of metals in the environment depend to a large extent on whether they occur in forms that can be taken up by plants or animals. Uptake of metals in an animal involves metal ions crossing a cell membrane. The a...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

ENVIRONMENT AND HEALTH LITERACY OF HEALTH WORKERS IN A HOSPITAL

(SGEM Scientific GeoConference, 2009, K. Temizyurek, N. Colakoglu, F. Ozbey)

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This is a study that a comparasion was trying to establish the difference between government –private sector health care workers and randomly selected group of people on the issue of Environment and Health Literacy .Besides the literacy of the environment but also evaluation of behaviour of proctection of environment close and remote vicinty were studied.Also in this study, comparison was trying to make between participants on the issue of information source and primary reason of environmental awareness. This st...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

FINANCING THE SUSTAINABLE DEVELOPMENT – A RELATIONSHIP BETWEEN GDP AND THE ENVIRONMENTAL BUDGETARY COMPONENTS

(SGEM Scientific GeoConference, 2009, D. Ariton, A. C. Nuta, C. G. Sirbu, F. M. Nuta)

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One of the main purposes of today public policy is to find a way of encourage the sustainable development. In our econometric approach we seek to find a possible connection between the environmental components of a nation’s budget and the GDP. The hypothesis is that if the GDP permits the public decision makers could ensure a high level of environmental public utilities. Trying to identify a bound between macroeconomic aggregates and the environment is not something new. The Chinese Green GDP is something simila...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

FLY ASH AND USAGE IN TURKEY

(SGEM Scientific GeoConference, 2009, A. Ilgun, U. S. Yilmaz, S. K. Akin, M. T. Cogurcu, M. S. Donduren)

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ly ash is one of the residues generated in the combustion of coal. Fly ash is generally captured from the chimneys of coal-fired power plants, all fly ash includes substantial amounts of silicon dioxide (SiO2) (both amorphous and crystalline) and calcium oxide (CaO). In the past, fly ash was generally released into the atmosphere, but pollution control equipment mandated in recent decades now requires that it be captured prior to release. Total amount of fly ash produced at coal-fired power plants is about 450 mil...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

LEAD-FREE ALLOYS FOR ECOLOGICAL SOLDERS MANUFACTURING

(SGEM Scientific GeoConference, 2009, A. Kostov, A. Milosavljevic, L. Gomidzelovic, R. Todorovic)

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Although the European Union’s directive about environment protection as WEEE and RoHS have been carried out in 2003, led solders are still in used in Serbia. In the aim to respect the European and world directives and laws, it is necessary to reduce a quantity of toxic element and to establish lead and cadmium free solders in production. In this paper it was presented lead-free alloys, which are used for ecological solders manufacturing and various applications. These are results in the frame of technology devel...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

MIDDLE AND UPPER JURASSIC OF DAMBOVICIOARA BASIN (ROMANIA): REGIONAL CORRELATION AND PALAEOENVIRONMENTAL RECONSTRUCTION

(SGEM Scientific GeoConference, 2009, M. N. Frinculeasa, A. Istrate, A. Dragne)

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The Middle and Upper Jurassic deposits develop on a large area in Dambovicioara Corridor. In this area belongs both to the “Group of the formations of Braşov” ([8], [9] redefined, emend [3]) and to the “Group of the formations of pre-Leaota” ([9], emend [3]). The group of Braşov covers strictly the area of D\^ambovicioara Basin, and the group of pre-Leaota was extended as well over the fosse Codlea-R\^aşnov-Podul D\^amboviţei and over Şinca-Piatra Craiului [3]. The facies of the two groups are differe...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

MINERALOGY AND GEOCHEMISTRY OF OCHREOUS SEDIMENTS FROM VARIOUS SB DEPOSITS (SLOVAKIA)

(SGEM Scientific GeoConference, 2009, B. Lalinska, K. Homolova, L. Piliarova)

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The objective of our study was to examine the mineralogy and chemical composition of ochreous sediments accumulated in the area of four abandoned Sb deposits from Slovakia. Each of them is from different geological settings and there are also differences between types of mineralization and mine processing. Samples were collected mainly from mine drainages and fraction under 0.063 mm was analyzed using conventional methods, including X-ray diffraction, IR spectroscopy, transmission electron microscopy and sequentia...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

MONITORING OF QUALITATIVE PARAMETER DEVELOPMENT OF BUILDING RECLAMATION MIXTURES ON A BASE OF ASH MATTERS IN THE INTERACTION WITH AMBIENT ENVIRONMENT IN PILOT PLANT MODE

(SGEM Scientific GeoConference, 2009, P. Sasek, P. Schmidt, J. Mann)

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Combustion product production increases with growing demand for energy produced by fossil fuel combustion. Their amount is higher in every year and new way of their use must be looked for. The combustion products can be largely used in a building industry where light ashes are applicable admixture for a concrete production or as a partial substitution of cement. Other way of use is at reclamation and improvement where the combustion products can be applied for back filling or rampart creation. The objective of the...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

OBSERVATION OF PHYSICAL MECHANICAL AND CHEMICAL PARAMETER CHANGES OF BUILDING MIXTURES ON A BASE OF PILOT PLANT COMBUSTION PRODUCTS

(SGEM Scientific GeoConference, 2009, P. Sasek, P. Schmidt, J. Mann)

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A combustion product production has increased in Czechia in recent years. The ways must be looked for how to use the combustion products effectively. One of the ways is to use them as building mixtures suitable for building purposes and for reclamation redevelopment works. Types of building mixtures based on combustion products were designed and their qualitative parameters were long term observed in the frame of the solution of a research proposal under the title “Research of physical and chemical properties of...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

STREAM SEDIMENT CONTAMINATION FROM AREAS AFECTED BY SB MINING IN SLOVAKIA

(SGEM Scientific GeoConference, 2009, P. Sottnik, M. Petrak, V. Cavajda, J. Cizniar)

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Sb-mineralization had been exploited in many localities in Slovakia. Contamination of environment by Sb, As and other heavy metals is specific problem of Slovak mining regions. Three localities Poproc (in eastern part of Slovakia), Medzibrod and Dubrava (in The Low Tatras) are abandoned mining areas where the stibnite ores had been exploited for many years. These areas represent high potential environmental risk because of transport and accumulation of contamination in different parts of environment (waters, strea...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

THE DEVELOPMENT OF SUSTAINABLE HEALTH TOURISM IN THE SALTY LAKES AREAS

(SGEM Scientific GeoConference, 2009, C. E. Tureac, A. G. Turtureanu, I. Bordean, A. Grigore, G. Modiga)

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In the current global crisis conditions any opportunity of extending the tourism market, attracting a new segment of tourists is welcome. The lake’s water stands as a crucial link that conditions a leads through its physicalchemical composition the lake’s biological life, the flora and fauna casting, their discomposure and transformation into mud quality important organic mater. The water’s level growth involves deep qualitative alterations, concerning the peloidogenesis phenomenon related species, and the w...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

THE RESHAPING OF THE ENVIRONMENT UNDER THE SIGN OF THE ECOLOGIC POLICIES

(SGEM Scientific GeoConference, 2009, M. Mazilu, S. Mitroi, V. Micsoniu)

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The relation man – environment has reached a point when it will bear major changes, which will reshape the entire structure of the man-made edifice. In fact, the changes will affect the society and the rules which it has created in all the aspects, starting from the definition of morality and reaching the behaviour of each individual, inhabitant of the planet. In this context, the ecologic policies do not situate themselves on auxiliary positions, “curative”, but they are meant to set up objectives on econom...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

THE SUSTAINABLE TOURISM PROMOTED BY SMES –BASIS OF THE TOURISM DEVELOPMENT

(SGEM Scientific GeoConference, 2009, C. E. Tureac, A. G. Turtureanu, I. Bordean, A. Grigore, G. Modiga)

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The sustainable tourism implies the development of all the forms of tourism, the touristic management and marketing that should respect the natural, social and economic integrity of the environment by ensuring the exploitation of the natural and cultural resources for the future generations as well. The competitive development of the touristic products lead to the creation of new jobs, in a direct manner – in the area of the production and distribution of touristic services – as well as in an indirect manner, ...

Ecology and Environmental Protection2009
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publication

TOTAL QUALITY MANAGEMENT AND PATIENT SATISFACTION RELATION

(SGEM Scientific GeoConference, 2009, S: K. Temizyurek)

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In medical sector, the expectation of both hospital administration and patients is quite much today, in parallel with the rapid development of information technologies. The increment in culture and consciousness level of people increases their better medical service taking wish. This situation is possible with more qualified service given by the foundations offering medical service and being satisfied of the service customers from the service they have taken. In total quality management; various parameters are eff...

Ecology and Environmental Protection2009
8th International Scientific Conference - SGEM2008
Publication

A RESEARCH ON COMPREHENDING ENVIRONMENTAL RISKS AND LEVEL OF ANXIETY AMONG HEALTH PERSONNEL RESULTING FROM THOSE RISKS

(SGEM Scientific GeoConference, 2008, Ikizler, A. M. Babali, G. Babali)

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The aim of our study is to make a research and determine the level of comprehending environmental risks and level of anxiety among health personnel resulting from those risks. The total field under survey is 2303 health personnel working GATA Haydarpasa Hospital. Our experimental group consists of 74 doctors, 81 nurses and 65 health workers working in managerial staff. In our crossectional research, a questionnary form of 16 questions, prepared specially, applied to our experimental group. 11 questions from the qu...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

Bi-DOPED LEAD DIOXIDE NANOCATALYST FOR OXIDATIVE DECOMPOSITION OF ORGANICS

(SGEM Scientific GeoConference, 2008, L. Lubenov, M. Bojinov, TZ. Tzvetkoff, A. Girginov)

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The objectives of the present work are to develop technologies for the electrodeposition of mixed oxide nanocomposites with electrocatalytic activity towards the oxidative degradation of organic compounds. Oxidation of organics in the potential region of O2 evolution is supposed to proceed through the oxidation of water to hydroxyl radicals, which then may either be further oxidized to give molecular oxygen or interact with organic molecules in an oxygen-transfer reaction. Therefore, the ideal electrode material m...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

COMPACTION AND CONSOLIDATION BEHAVIOUR OF FLY ASH AND POND ASH FOR STOWING IN UNDERGROUND MINES

(SGEM Scientific GeoConference, 2008, D. P. Mishra, S. K. Das)

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This paper presents the outcome of the study on the compaction and consolidation behaviour of class F fly ash of Talcher Thermal Power Station (TTPS)of India for stowing in the underground mines. Light weight compaction test is conducted by using Proctor mold as per IS: 2720 to determine the optimum moisture content and dry density of fly ash and pond ash samples. From the compaction test it is found that the optimum moisture content of fly ash is 34.25\% at a maximum dry density of 1.15 g/cm3. Similarly, the opti...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

DESIGN AND MANUFACTURE OF AN AUTOMATIC SEQUENTIAL RAIN SAMPLER: TESTING WITH SUB-EVENTS

(SGEM Scientific GeoConference, 2008, B. O. Akkoyunlu, M. Tayanc, M. Dogruel, I. Oruc)

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The preliminary goal of this study is to design, construct and test an automatic sequential precipitation sampling instrument. Testing includes collection of sequential precipitation samples, analyzing them and trying to find the sources of environmental pollution. Proposed sequential sub-event sampler is composed of two parts; mechanic and electronic hardware. Mechanical part includes a stepped 100 ml sampler cups on it, and a metallic body. Electronic part is composed of digital and analog sensors, various elect...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

ENVIRONMENT AND HEALTH LITERACY

(SGEM Scientific GeoConference, 2008, K. Temizyurek)

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The world is being polluted rapidly in recent years. Pollution, which can stem from both natural and artificial causes, has a detrimental effect on our health and the environment. People’s contribution to the pollution cannot be emphasized enough. Technological development also plays an important role in environmental pollution. Extravagant uses of technology and people’s lack of sensitivity to the damages of technology cause pollution to increase in an uncontrollable rate. Pollution causes both global warming...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

EVALUATION OF DECENTRALIZED AND CENTRALIZED WASTEWATER TREATMENT PLANTS

(SGEM Scientific GeoConference, 2008, M. Onucyildiz, M. F. Sevimli, G. Gorgulu)

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In this study, it is aimed to find out which wastewater treatment plant (WWTP) is more economical by means of comparison of initial investment costs and operational costs of decentralized and centralized domestic wastewater treatment plants in and around Antalya which is located in Mediterranean Region. For this purpose, data of 14 decentralized and 5 centralized domestic wastewater treatment plants is evaluated. The design flowrates of decentralized and centralized WWTP are varying 120-900 m3day-1 and 5000-22000 ...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

EVALUATION OF MUDSTONE FORMATIONS FROM CRETE, GREECE AND THEIR SUITABILITY FOR RAMMED EARTH AND ADOBE PRODUCTION

(SGEM Scientific GeoConference, 2008, TH. Markopoulos, P. Rotondo, G. Chrysafaki, A. Mousourakis)

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Mudstone formation samples from Crete, GREECE are investigatedwith regard to their suitability as raw materials for rammed earth and adobe production. This paper deals with the mineralogical composition, soil particle size distribution of samples, as well as the analysis of sample consistency and compressive strength of rammed earth cube samples. Quartz and clay minerals are the major mineralogical constituents, whereas micas, chlorites, iron-oxides and hydroxides, carbonates and feldspars were detected in various...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

FLY ASH FOR BUILDING RECLAMATION MIXTURES

(SGEM Scientific GeoConference, 2008, P. Sasek, P. Schmidt, J. Mann)

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Aim of the work is long-time monitoring of building reclamation mixtures on fly ash basis in pilot plant terms. The objective is to obtain a conclusive result set to prove that the interests of environment and people’s health protection are not endangered in the relation with natural geological surroundings by variant bulk mass mining technological utilisation in the area of open pit mines or a power industry. A rigorous assessment of the referential qualitative parameters of monitoring points environment is rep...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

HYDROGEOLOGICAL CHARACTERISTICS OF BEYSEHIR LAKE AND ENVIRONS

(SGEM Scientific GeoConference, 2008, A. Bozdag, A. F. Bayram, I. Ince)

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The most important creeks discharging to the Beysehir Lake (Sarisu, Ustunler, Ebulvefa, Eflatun) and their drainage area form the southeast basin of the lake. In this study will be given briefly the rocks in these basins and their hydrochemical relation with surface and subsurface water The Lower – Middle Cambrian Caltepe formation comprises of dolomite, crystallized limestone and nodular limestone, occurs at the basement and, has reservoir rock characteristics. The Upper Cambrian – Lower Ordovician Seydisehir...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

INFLUENCE OF FOUNDRY INDUSTRY ON THE ENVIRONMENT

(SGEM Scientific GeoConference, 2008, M. Bartosova, A. Pribulova, P. Gengel)

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Foundries melt ferrous and non-ferrous metals and alloys and reshape them into products at or near their finished shape through the pouring and solidification of the molten metal or alloy into a mold. The foundry industry is a differentiated and diverse industry. It consists of a wide range of installations, from small to very large, each with a combination of technologies and unit operations selected to unit the input, size of series and type of product produced by the very specific installation. The foundry proc...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

INVESTIGATION A CASE HISTORY OF YELLOW FIN AND DIFFERENTIATION OF SAND AND GRAVEL ON SEAFLOOR BY SIDE SCAN SONAR IMAGES

(SGEM Scientific GeoConference, 2008, M. Soleimani, M. R. Hosseinnejad, R. Ahmadi, B. Jodeiri)

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Bathymetric mapping is the first step in any underwater and sea bed investigation, especially for petroleum exploration. In most we face with a complex of sand and gravel covering the bottom of the sea. Differentiate these two type of seafloor covering material is the case of many research in offshore exploration. In this article We investigated a practical case history to define and show the differences of sand and gravel in their images. The images were obtained by the Yellow-Fin side scan sonar instrument and p...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

INVESTIGATION OF THE EFFICIENCY OF SnO2 COUPLING ON PHOTOCATALYTIC ACTIVITY OF ZnO

(SGEM Scientific GeoConference, 2008, N. Modirshahla, M. A. Behnajady, A. Hassani)

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With developing industries particularly dying industries and complication in the structure of dye molecules and resulting wastewaters from these plants cause a serious threat to the environment (due to resistance to biological treatment). The aim of this study was to investigate the efficiency of coupled system (UV/ZnO+SnO2) in the removal of acid yellow 23 (AY23) a mono-azo dye from aqueous solutions. In these experiments ZnO and SnO2 were employed in a single and coupled form in slurry conditions and the optimum...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

LAND CONSOLIDATION AND ENVIRONMENTAL PROTECTION

(SGEM Scientific GeoConference, 2008, M. Ivkovic, M. Dzapo, A. Vihra)

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Rural area of Croatia covers 90\% of land in Croatia, and there 47\% of total population living in it. These are mostly poorly developed areas in Croatia, and they are being expanded all the time, which causes the emigration of population. In order to trigger the development of rural areas, some measures are planned, among other things the land consolidation that might increase the economic efficiency of family farms, and hence, prevent the emigration of population from villages. Namely, small family farms being l...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

PROSPECTS OF USE PROTECTED HYDROGEOLOGICAL AND HYDROLOGICAL OBJECTS AS REFERENCE POINTS OF BACKGROUND MONITORING

(SGEM Scientific GeoConference, 2008, O. G. Stolova, R. R. Gilmutdinov, M. A. Korolev, I. V. Karmanov)

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This report are containing results of the analyses about quality estimation of water at the 35 hydrological and hydro-geological nature monuments of the republic of Tatarstan, which was been investigated analytical methods. This is objects of hydrosphere, are having more ecology-pure water in comparison with other analogs in that region which is known as region having intensively developed structure of an oil-extracting complex. In this region are difficulty to execute the long-term forecast of dynamics of change ...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

REMOVAL OF HEAVY METALS FROM ACID MINE DRAINAGE USING ADSORPTION METHODS

(SGEM Scientific GeoConference, 2008, M. Balintova, N. Kovalikova)

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The abandoned mining area Smoln\'\ik in Slovakia belongs to the old environmental loads because of acid mine drainage (AMD) production. Massive pyrite oxidation and free sulphuric acid production are the major reason of water acidification (pH about 2-4) and dissolving of heavy metals from metallic ores. This acid mine drainage (AMD) contents high metal concentrations that variable in dependence on rainfall intensity (e.g. Fe 500- 400 mg/l; Cu 3-1 mg/l; Zn 13-8 mg/l and Al 110-70 mg/l) and it can be transferred in...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

SEDIMENT QUALITY IN SMOLNРќK CREEK

(SGEM Scientific GeoConference, 2008, N. Kovalikova, M. Balintova)

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Acid Mine Drainage (AMD), resulted from the oxidation of sulphide-bearing rocks, is one of the most significant environmental challenges facing the mining industry worldwide. AMD impacts stream and river ecosystems by increasing acidity, depleting oxygen, and releasing heavy metals. They may occur during mining operations or long after a mine has been abandoned. Smoln\'\ik is an abandoned mine in the east of Slovakia that contribute AMD to rivers and streams. AMD from the Smoln\'\ik mine (shaft Pech), influences n...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

SEQUENCE ANALYSES OF STREAM SEDIMENTS FROM ABANDONED SB-MINING AREAS (POPROC AND DUBRAVA) IN SLOVAKIA

(SGEM Scientific GeoConference, 2008, P. Sottnik, B. Lalinska, M. Sutriepka, L. Jurkovic)

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Sb-mineralization had been exploited in many localities in Slovakia. Contamination of environment by Sb, As and other heavy metals is specific problem of Slovak mining regions. Natural background for groundwater in Slovakia was appointed to 1 $\mu$g/l for Sb and 5 $\mu$g/l. Two localities Poproc (in eastern part of Slovakia) and Dubrava (in The Low Tatras) are abandoned Mining areas where the stibnite ores had been exploited for many years. These areas represent high potential environmental risk because of transpo...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

SINTERED GLASS-CERAMIC AND COMPOSITES FROM MSW BOTTOM ASH

(SGEM Scientific GeoConference, 2008, A. Karamanov, M. Aloisi, Рњ. Pelino, L. Arrizza, I. Matekovits)

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The sintering and phase formation of glass press-powders, obtained after melting and re-melting of MSW bottom ash, were investigated by non-isothermal dilatometry and differential thermal analysis. Additionally, a series of composite materials, containing 20 vol \% corundum powders with different fraction size, were prepared and studied. The crystalline phases, formed at different temperatures, were evaluated by X-ray diffraction and the structure of glasses and final materials were observed by scanning electron m...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

SINTERING AND PHASE FORMATION IN CERAMIC MATERIALS FROM BLAST FURNACE SLAG

(SGEM Scientific GeoConference, 2008, E. Karamanova, G. Avdeev, I. Penkov, A. Karamanov)

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The work discuses three ceramic compositions containing no feldspars and based on 30, 50 and 70 wt \% Blast Furnace Slag (BFS), respectively, 30 \% kaolin and quartz sand. Initially, the processes of phase formation and densification were estimated using nonisothermal Differential Thermal Analysis and Dilatometry. After that, the degree of sintering at different temperatures and times was measured by linear shrinkage and water absorption. The phase composition and the structure of final materials were evaluated wi...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

SOLIDIFIED BACKFILL MATERIAL ON FLY ASH BASIS

(SGEM Scientific GeoConference, 2008, P. Sasek, P. Schmidt, J. Mann)

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The utilisation of fly ash must be searched for because of its current production. One possibility of the use is at old mines liquidation, where the ash can be used as a consolidated filling material. The consolidated filling material consisting of conventional fly ashes consolidated by a hydraulic binding material is transported to a pit in a suitable slurry consistency which ensures the strength for definite pit sections up to 5 MPa. Common requirements on physico-mechanical qualities are the pressure strength m...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

SURROUNDING OF ABANDONED SB DEPOSIT POPROC (SLOVAKIA) - PRELIMINARY DATA FROM GEOCHEMICAL AND MINERALOGICAL RESEARCH

(SGEM Scientific GeoConference, 2008, L. Jurkovic, B. Lalinska, M. Chovan, P. Sottnik, O. Lintnerova, M. Jankular, M. Vaculik)

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Environmental large-scale contamination in surrounding of abandoned Sb-deposits in Slovakia by toxic elements (Sb, As, Zn, Pb, Cu...) as result of long-time mining activity is still undiscovered field. Surroundings of abandoned antimony deposit Popro\vc bear high concentrations of toxic contaminants mainly of sulfide relative minerals. Pollution resulting from long-time mining activity was observed in area adjacent to adit Agnes showing Sb concentrations within values 4 700 – 10 000 mg.kg-1 and maximum As concen...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

TECHNICAL ECONOMICAL AND ENVIRONMENTAL EVALUATION OF VESTIGE MATERIAL EXPLOITATION FROM THE TREPCA MINES

(SGEM Scientific GeoConference, 2008, S. Kastrati, M. Hetemi, I. Zeqiri)

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Actual circumstances of the old storages are treated, created from the enrichment processes in the Trepca Flotation plant, Kishnica’s and Albanik (ex Leposavic) mines. According to the existing documentation there are dragged out more than 60m ton of rich minerals with Pb, Zn, Ag, Au, pyrite and other minerals from Trepca mines. This process was developed in the flotation plants of Stanterg, Kishnica and Albanik mines, achieved in a dispersive complex, as well as during the physical-chemical process. The separat...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

THE APPLICATION OF FeO/H2O2 FOR COLOR REMOVAL

(SGEM Scientific GeoConference, 2008, S. Sahinkaya, A. Aygun, M. F. Sevimli)

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The decolorization of C.I. Reactive Orange 36 (RO 36) by using Fenton-like process (Fe0/H2O2) was studied. Batch experiments were carried out for investigation of optimum operational conditions such as pH, H2O2 and Fe0 (iron powder) dosages. The results show that Fenton-like process is an efficient process to remove color from synthetic textile wastewater including RO 36 and polyvynil alcohol (PVA). The optimal conditions were experimentally determined and it was found to be initial pH = 3, [H2O2] = 50 mg/L, [Fe0]...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

THE DECOLORIZATION OF REACTIVE BLUE 21 BY USING FENTON REAGENT

(SGEM Scientific GeoConference, 2008, M. F. Sevimli, S. Sahinkaya, A. Aygun)

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This study was focused on the application of Fenton (Fe+2/H2O2) process for the decolorization of colored synthetic wastewaters. Polyvinyl alcohol (PVA) and C.I. Reactive Blue 21 (RB 21) were used as model pollutants. The selection of the optimal operating conditions (initial concentration of H2O2 and Fe2+) was performed in a batch reactor. The optimal reacting conditions were experimentally determined and it was found to be initial [H2O2] 20 mg/L, [Fe+2] 37.5 mg/L for synthetic wastewater containing [RB 21] 50 mg...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

THE DEGRADATION OF REACTIVE BLACK 5 BY FENTON PROCESSS USING RAW IRON PYRITE ORE

(SGEM Scientific GeoConference, 2008, A. Aygun, S. Sahinkaya, M. F. Sevimli)

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This study examined the decolorization of one of the most commonly used reactive dye by using the Fenton-like process [Iron pyrite/ H2O2]. Raw iron pyrite ore contains 28,68 \% Fe. Oxidation experiments were run in 500 mL-glass beakers that were continuously stirred for up to 180 min at a constant rate of 200 rpm, after initiation of the Fenton process. A series of experiments were carried out at various concentration of hydrogen peroxide and raw iron pyrite ore while the pH value was kept constant at 3 in order t...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

THE STUDY OF SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NEW 1,4- DIAZINIUM DERIVATIVES

(SGEM Scientific GeoConference, 2008, M. Ungureanu, A. Poiata, C. Tuchilus, I. I. Mangalagiu)

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In previous papers, we emphasised the important antimicrobial properties of some pyrazine and quinoxaline derivatives. In order to extend the research in the 1,4-diazine series, in this study we investigate the synthesis and amtimicrobial properties of some pyrazine and 6-methyl-quinoaline new derivatives. To this stage, we synthesised various cycloimmonium salts with acetophenone skeleton. On further treatment of diazinium salts in alkaline medium, we obtained ylidic intermediates. The existence in situ of ylids ...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

THE USE OF GLASS AS A PACKAGING MATERIAL, RECYCLING AND A GENERAL OUTLOOK OF THE PROCEDURES IN TURKEY

(SGEM Scientific GeoConference, 2008, S. Albayrak, G. Demir, T. Celik, C. Bayat)

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The world population has been increasing rather fast along with an inevitable rise in the process of industrialization. Today, the world population has reached 7.2 billion and it has been struggling for better standards of life. However, the ecological equilibrium has been tilted off as a result of depletion of natural resources and of the damage to the nature in order to obtain such packaging materials used for the needs of 7.2 billion people, mainly in terms of food and catering sectors as well as textile, furni...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

TREATMENT OF YOUNG LANDFILL LEACHATE BY FENTON PROCESS

(SGEM Scientific GeoConference, 2008, A. Aygun, T. Yilmaz, A. Berktay, B. Nas)

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In this study leachate from solid waste landfill in Konya Municipal area was used. Landfill occupies 24 ha area with an average height of 8 m in the total area of 350 ha at the present time. The amount of solid waste generated is about 800-850 tons/day in summer and 950-1,000 tons/day in winter months yielding the average leachate flow rates of about 100 m3/day. The main characteristics of the leachate are chemical oxygen demand in the range of 7,500-55,000 mg/L, biological oxygen demand after 5 days of 4,000-36,5...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

UTILISATION OF RENEWABLE ENERGY SOURCES BY INCREASING ENERGETIC EFFICIENCY IN SLOVAKIA

(SGEM Scientific GeoConference, 2008, R. Kralikova, M. Badida, M. Krupa)

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Renewable energy source is a source which energetic potential permanently renews with natureВґs processes or with the activity of man. Renewable-based energy sources have as yet played a negligible role in SlovakiaВґs energy balance. However there is the global trend toward more intensive use of these clean energies, therefore their higher utilisation is enshrined among the strategic goals of energy policies of most of the countries worldwide, including Slovakia. Necessity of energy and exploitation of the energet...

Ecology and Environmental Protection2008
8th International Scientific Conference - SGEM2008
Publication

UTILIZATION POSSIBILITIES OF SELECTED WASTE KINDS IN BUILDING MATERIALS PREPARING

(SGEM Scientific GeoConference, 2008, N. Stevulova, V. Vaclavik, J. Junak, R. Grul, M. Bacikova)

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The utilization possibilities of secondary raw materials in civil engineering are presented in this paper. Three various solid waste kinds were tested as a partial cement or natural aggregate material replacement in construction applications. The influence of mechanically and chemically activated coal fly ash as 25 wt. \% cement replacement and steel slag and recycled concrete as aggregate fraction replacement on compressive strength development of composites during hardening was investigated. The addition of the ...

Ecology and Environmental Protection2008
7th International Scientific Conference - SGEM2007
Publication

A GENERAL COMPARATIVE EVALUATION OF THE EXISTING LEGAL PROCEDURES CONCERNING THE SOLID AND HAZARDOUS WASTE MANAGEMENT IN THE EUROPEAN UNION AND IN TURKEY

(SGEM Scientific GeoConference, 2007, G. Demir, T. Celik, C.BAYAT)

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Technological developments in 20 and 21 centuries have highered up standards of living and created welfare and more comfortable living conditions for mankind. However, together with the increasing world population, environmental problems have also increased and diversified based on various reasons. Therefore, with the aim of solving the existing air, water and earth pollution problems and taking them under control, laws and regulations have been put into force and announced both internationally and domestically. T...

Ecology and Environmental Protection2007
7th International Scientific Conference - SGEM2007
Publication

AN EVALUATION OF ENVIRONMENTAL POLICY AND ITS MACROECONOMIC IMPLICATIONS

(SGEM Scientific GeoConference, 2007, CH. Rault, R. Sova, A. M. Sova)

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One of main concern of policy makers is pollution and hence the improvement of the environmental quality. The implementation of environment policies aims at improving life and product quality in order to replace those obtained by high polluting processes by less polluting ones. Countries having more strict environmental regulations are likely to suffer from a significant increase of their production costs. As a consequence these countries become less competitive on the international market and may lose their marke...

Ecology and Environmental Protection2007
7th International Scientific Conference - SGEM2007
Publication

ANAEROBIC TREATMENT OF AZO-DYE UNDER BATCH CONDITIONS

(SGEM Scientific GeoConference, 2007, M. Dursun, KARATAS S.)

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Anaerobic treatment system was used for determination of colour removal under batch conditions. Azo-dye (Reactive Black 5, RB 5) with glucose as a carbon source was used as a synthetic wastewater. The decolourization process follows first order kinetics with respect to RB 5 azo-dye concentration in batch conditions. Decolourization rate constant (k1) value for dye concentration of 150mgL-1 was 0.1751 h-1 in the batch experimental study performed with RB 5. Maximum Reactive Black 5 removal efficiency was obtained a...

Ecology and Environmental Protection2007
7th International Scientific Conference - SGEM2007
Publication

DETERMINATION OF SOUND TRANSFER COEFFICIENT AND NOISE INSULATION CAPABILITY OF BORON ADDED CELLULOSIC MIXTURE

(SGEM Scientific GeoConference, 2007, M. T. Cogurcu, S. Sahinkaya, M. S. Donduren, S. Dogan, C. Ozdemir)

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Noise is an important factor affecting human health psychologically due to lack of performance, hearing failures, decreases in heart beats, physiologically due to higher brain liquid pressure and sociologically due to lack of communication. Especially in closed working areas, it has significant negative effects on the performance. Noise control in closed working areas is generally done with boron added cellulosic mixture sprayed on the structure or surfaces with required thicknesses. In this study, noise was gener...

Ecology and Environmental Protection2007
7th International Scientific Conference - SGEM2007
Publication

ENVIRONMENT CONSCIOUSNESS AND STS LITERACY

(SGEM Scientific GeoConference, 2007, K. Temizyurek)

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The importance of a high literacy consciousness in the development of societies is a known fact. Scientific literacy is the fundamental criterion to catch the era in social, scientific and technological fields. Science, Technology and Society (STS) literacy level and the sensitivity of the natural environment protection is crucial in the economic and technologic development of countries. For this reason, the developed countries applied STS literacy to all layers of the societies. The developing countries have to p...

Ecology and Environmental Protection2007
7th International Scientific Conference - SGEM2007
Publication

ENVIRONMENT-CENTERED DESIGN WITH MULTIAGENT SYSTEMS

(SGEM Scientific GeoConference, 2007, A. Dumitrascu)

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To implement large-scale multiagent systems (MAS) in the paper is proposed a new system design methodology towards environment-centered design. The interaction of blocks that compound the structure of multiagent system for environment processes is described. These links consist in system simulation, where agents and human-controlled units coexist in virtual space to jointly perform simulations and augmented experiment. As an application of environment-centered design, environment embedded agents for a large-scale ...

Ecology and Environmental Protection2007
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