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Subject: Ecology and Environmental Protectionclear all
Showing 3601-3650 of 3655 records
5th International Scientific Conference - SGEM2005
Publication

BIOLOGIC RECULTIVATION OF CIRESATA-ROMANIA DEPOSITION

(SGEM Scientific GeoConference, 2005, E. Dunca, B. Berov, I. Dumitrescu)

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This study analyzes the possibilities of anchorage and reform of a sterile deposition resultant from copper mining activities from around the Brad-Romania mining area. Because this sterile deposition is out of service from about 8 years, the solutions we had to propose according to work of biologic recultivation must stabilized the sterile deposition. After consolidation the danger of rain and snow melting waters will diminish. The main purpose is to avert pollution of area environment factors and concurrently acc...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

DETERMINATION OF MINERAL PROCESSING INDUCED ENVIRONMENTAL IMPACTS

(SGEM Scientific GeoConference, 2005, I. Kursun, G. Tuncer, K. Cinku)

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People have always used metals and minerals and products made from or with minerals in a nearly infinite number of ways. With the increase in population and real per capita income, the demand for mineral commodities is likely to rise in the future.Mineral Processing in the mining industry can be defined as the economic recovery of a valuable commodity from a mineral deposit. Mineral processing operations produce significant amounts of solid and liquid wastes. As the quality of mineral deposits diminishes, raw mate...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

DEVELOPMENT AN EXPERT SYSTEM IN WATER MANAGEMENT

(SGEM Scientific GeoConference, 2005, C. Nitu, P. Eusebiu)

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In this work the main goal is to design and develop a expert system, with special focus on water management and quality. It is remarkable the high quantity of information and knowledge patterns implicit in large databases coming from the monitoring of any system or dynamical environmental process. For instance, historical data collected about meteorological phenomena in a certain area, about the performance of a wastewater treatment plant, about characterizing environmental emergencies (toxic substances wasting). ...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

ESTIMATION OF THE GROUND VIBRATION PARAMETERS INDUCED BY BLASTING DURING TUNNEL EXCAVATION

(SGEM Scientific GeoConference, 2005, O. Durmus, A. Kesimal, B. Ercikdi, F. Cihangir)

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“The Black Sea Coastal Way Rehabilitation Project” which started seven years ago in order to relief in traffic flow in the Eastern Black Sea Region of Turkey and presently continues to complete their constructions. The project involves the rehabilitation and shortening of the present motorway and hence the construction of new tunnels and riprap material for filling the sea are required in some places. This paper involves one of the blast based tunnel excavations, which is performed for “Yoroz Tunnel” situa...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

HYDROCHEMICAL CHARACTERISTICS OF THE FARIA BASIN, NORTHEASTERN WEST BANK

(SGEM Scientific GeoConference, 2005, M. Ghanem, B. Merkel, A. Tamimi)

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A hydrochemical study is conducted in the Faria basin / NE of the West Bank to define water types and to determine hydrochemical parameters of the aquifer system. More than 150 water samples were analysed, which covered all springs and wells. The physical and chemical properties were determined. The major cations Ca2+, Mg2+, Na+ and K+ and the major anions HCO3-, Cl-, SO42- and NO3- were analysed. The minor constituents of SiO2, F-, Br- and PO43- and the trace elements Cu, Cd, Fe, Mn, Cr, Zn and Pb were determined...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

INVESTIGATION OF THE ENVIRONMENTAL EFFECTS OF GROUND VIBRATION INDUCED BY BLASTING IN VARIOUS QUARRIES LOCATED AT NORTHERN CYPRUS

(SGEM Scientific GeoConference, 2005, U. Ozer, A. Kahriman, A. Karadogan, G. Tuncer, M. Aksoy, K. Ozdemir)

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This paper presents investigation of the environmental effects of ground vibration and air blast induced by blasting in various quarries located at Turkish Republic of Northern Cyprus. Within the scope of this study, scaled distance components have been recorded for two shots at the BeЕџparmak Company, two shots at the G\"urdaДџ Company, one shot at the Levent Mosaic Company and one shot at the ArpalД±klД± Company, totally 6 shots at different times. And also, ground vibrations and air blasts produced by these sho...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

LEACHABILITY OF ENVIRONMENTALLY HAZARDOUS ELEMENTS FROM ASHES PRODUCED AFTER LIGNITE COMBUSTION IN AGIOS DIMITRIOS POWER PLANT, NORTHERN GREECE

(SGEM Scientific GeoConference, 2005, G. Papastergios, A. Georgakopoulos, J. Fern\'Andez-Turiel, D. Gimeno)

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A bottom ash and a fly ash sample from Unit 1 of the Agios Dimitrios Power Plant, Northern Greece, were subjected to a one stage leaching procedure (Synthetic Groundwater Leaching Procedure – SGLP). The lignite burned in it derives from the Southern Field Mine from the Lignite Centre of Western Macedonia. The Relative Mass Leached (RML) for ten major (Al, P, Ca, Mg, K, Fe, Na, Si, S and Ti) and forty eight trace elements (Li, Be, B, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Rb, Sr, Y, Zr, Nb, Mo, Ag, Cd, Sn, Sb...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

METAL POLLUTION OF SOILS IN THE SW PART OF KOCANI VALLEY (R. MACEDONIA) RELATED WITH PB-ZN MINES ACTIVITIES

(SGEM Scientific GeoConference, 2005, SERAFIMOVSKI, DOLENEC T., G. Tasev, M. Dolenec)

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This paper presents the results from the study of heavy metals contamination of paddy soil of the Ko\vcani Field (Eastern Macedonia), an area with extensive agricultural production. The soil of the Ko\vcani Field is supposed to be polluted by heavy metals due to mining activities and acid mine drainage from Zletovo-Kratovo and Sasa-Toranica ore districts. This was supposed by the fact that acid mine drainage and direct input of Zletovo Pb-Zn mine effluents of pH 3.4 with mean Pb concentrations of 66 mg l-1, Zn at ...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

PURIFICATION OF WATER FROM METAL IONS BY ACTIVATED CARBONS OBTAINED FROM COALS AND AGRICULTURAL BYPRODUCTS

(SGEM Scientific GeoConference, 2005, A. Eksilioglu, F. Karadag, A. Gul, M. Sipahi, T. Budinova, N. Petrov, D Savova)

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The problems for the protection of the environment from various pollutants are considered worldwide as fundamental for mankind. A large number of people are nowadays exposed to the different pollutions in waste and potable water. The pollutions have a harmful effect on the biological system. Some regions in Bulgaria and Turkey have serious problems with water contaminated with metal ions. The heavy metals (Hg, As, Cd, Mn, etc.) have a harmful effect on human physiology and other biological system when they are fou...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

RECLAMATION OF MINED OUT OPEN PITS USING COMBUSTION BYPRODUCTS

(SGEM Scientific GeoConference, 2005, J. Kudelko, J. Nowak)

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The paper describes using wastes from power industry for filling the open pits. It presents the types of post-mining open pits which require filling and reclamation. The methods of using combustion by-products which come from commercial power stations and thermal-electric power stations are presented in the paper. The types of combustion byproducts, their origin, amount and features are discussed. The significant differences between parameters of ashes from brown coal and hard coal are underlined. The properties o...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

REMOVAL OF CHROMIUM FROM AQUEOUS SOLUTION USING ACTIVATED CARBON

(SGEM Scientific GeoConference, 2005, A. Gul, A. Dincer, R. Yavuz, N. Karatepe)

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The aim of this investigation is to determine the adsorption behavior of chromium (VI) on Tuncbilek activated carbon sample. The effects of the Cr concentration (25-100 ppm), temperature (297-325 K) and pH (2.5-9.8) on adsorption were investigated systematically. It was found that the effectiveness sequence of the parameters was initial Cr(VI) concentration, temperature and pH. Increasing the pH from 2.5 to 9.8 causes a decrease in adsorption. But it is obvious that adsorption was increased by increasing the initi...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

RESULTS OF APPLICATION OF SOME NON –TRADITIONAL RESTORATION METHODS ON NORTH BOHEMIAN MINES LOCATIONS

(SGEM Scientific GeoConference, 2005, M. Rehor, T. Lang, V. Ondracek, H. Lorencova)

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The North-Bohemian Basin area is known for its largest Czech brown coal deposit. About 50\% brown coal reserves have been exploited in the North-Bohemian Basin by the mining company of Severoceske doly, a.s. (North Bohemian Mines) today. The opencast mining of brown coal naturally led to vast landscape damages. Therefore reclamation work has acquired great significance. The specific feature of Severoceske doly, a.s. mining is the fact that the mining has been realized in two geologically absolutely different local...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

SOME ASPECTS CONCERNING THE REPLY REACTIONS OF SOME GYMNOSPERMS TO THE ACTION OF SOLID INDUSTRIAL POLLUTANTS

(SGEM Scientific GeoConference, 2005, L. Ivanescu, M. Zamfirache)

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The investigations made by us about the micromorphology of the foliar surfaces of two species of gymnosperms in the industrial areas Bicaz and TaЕџca (the NeamЕЈ District, Romania). The investigations of electronic microscopy (S.E.M.) made up at the level of necrotic and/or chlorosis surfaces (top, middle, basis) of the acicular leaves of Pinus sylvestris and Pinus nigra showed changes of the cuticular surface, their contortion, caused by the total disappearance of the parallelism between the cuticular prints, the...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

SOURCE TO SINK RIVER POLLUTION ASSESSMENT IN NORTHERN BULGARIA: PRELIMINARY RESULTS ON CONTAMINANT DELIVERY IN THE LOWER DANUBE BASIN

(SGEM Scientific GeoConference, 2005, P. Brewer, M. Nikolova, G. Bird, T. Kotsev, M. Macklin, M. Mollov, C. Swain)

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Bulgaria occupies a unique position in south-east Europe in terms of river basin management and control because contamination from metal extraction and processing industries not only has a potential significant trans-border impact but also affects both the Mediterranean and Black Seas. However, to date, no whole basin source to sink study of metal contamination has yet been conducted in the country. This paper begins to address this issue by presenting preliminary results from a survey conducted in August 2004 of ...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

STUDY FOR IDENTIFYING APPROPRIATE SOLUTIONS FOR REHABILITATION IN THE ZONE OF THE LAKE SNAGOV, ROMANIA

(SGEM Scientific GeoConference, 2005, I. Dinu)

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An accidental pollution by hydrocarbon occurred in the zone of the Lake Snagov, about 30 km North of Bucharest. As a consequence, five study wells were made for the purpose of this study, covering the zone possibly affected by pollution. Pumping test were carried out, providing the order of magnitude for the hydraulic conductivity of the aquifer. Calibration of a 3D groundwater flow numerical model was made both in natural and pumping conditions. Several variants for placing new wells were studied. Based on the fl...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

THE EFFECT OF ATMOSPHERIC POLLUTING FROM THE INDUSTRIAL AREA OF BICAZ ON SOME PHYSIOLOGICAL PROCESSES AT SOME SPECIES OF GYMNOSPERMS

(SGEM Scientific GeoConference, 2005, M. Zamfirache, L. Ivanescu, Z. Olteanu, S. Surdu)

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In this paper we present the critical situation of four species of Gymnosperms (Pinus nigra and Pinus sylvestris, Picea abies, Abies alba.) which can be found in areas of industrial zone from Bicaz District, Romania. The pollutants are mainly solid: lime and cement dust. Our investigation it is about the physiological and histo – anatomical modifications of the leaves (needles). We want to stress the fact that the large quantity of dry substance from the leaves isn’t always related to the distance from the pol...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

THE ENVIRONMENTAL IMPACT OF THE WASTES PLATFORM AT TOMESTI-IASI (ROMANIA)

(SGEM Scientific GeoConference, 2005, A. Murariu, N. Costica, M. Costica, A. Stratu, C. Secu, A. Lupascu, I. Moglan)

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During 2004, pluridisciplinary investigations have been devoted to the abiotic and biotic characteristics of the anthropized ecosystem developed in relation with the domestic litter hills at Tomesti, Iasi. Both abiotic (climate, soil, air) and biotic (talobyontes, chormobyontes, phytophagous invertebrata) parameters have been recorded. The results showed that the urban wastes deposit has a complex impact upon the environment: air pollution with odours and dust, soil pollution with heavy metals (Pb, Ni, Cr, Cd, Cu)...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

USE OF PHYTODECONTAMINATION PROCESS IN REGENERATION MEASURES TO DECREASE CONTENT OF UNDESIRABLE MATTERS IN DISCHARGED MINING WATERS OF THE NORTH BOHEMIAN BROWN COAL BASIN

(SGEM Scientific GeoConference, 2005, J. Halir)

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The former mine Obr\'ancЕЇ M\'\iru and its inner dump is the area of interest situated in the North-bohemian Brown Coal Basins at the North-western border of the Czech Republic. In the course of the mine opening and continuous operation the hydrogeological conditions of the outer environment were significantly impacted or totally changed by previous long-term, first underground, later opencast coal mining. At the turn of the 20th and 21st century abundant effluents of underground waters with low pH and high conten...

Ecology and Environmental Protection2005
4th International Scientific Conference - SGEM2004
Publication

EFFECTS OF SOCIO-ECONOMIC STRUCTURE ON ENVIRONMENTAL MANAGEMENT MODELLING

(SGEM Scientific GeoConference, 2004, B. Ustun, A. B. Agcioglu, M.U. Taner, G. E. Aytac, Z. Yenal)

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This study is about the investigation of socio-economic factors in order to enhance preservation of prominent Basin and Lake Regions. The ongoing joint research and development project in Kucukcekmece Basin, Istanbul, aims to implement an environmental master plan for the region and to establish a coordination department which includes coordination of municipality, government institutions and NGOs each other. In addition, monitoring of the water resources within the basin is an important point of the project. Kucu...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

ENVIRONMENTAL BENEFITS BY USE OF PASTE BACKFILL TECHNOLOGY FOR DISPOSAL OF SULFIDE-BEARING MINE TAILINGS

(SGEM Scientific GeoConference, 2004, A. Kesimal, E. Yilmaz, B. Ercikdi)

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This paper focuses on the potential environmental benefits afforded by use of paste backfill technology when tailings are sulfide-bearing and provides a case study chosen from an underground mine in north-east Turkey in order to illustrate these benefits. Additionally, it includes discussions on different slump values with varying cement contents under 28-day uniaxial compressive strength tests for mine tailings and determines the rheological properties of mine tailings with respect to paste production.

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

EXPERIMENTAL MODELING OF INTERPHASE AND BACTERIA INTERACTIONS IN HEAVY METAL AND AS POLLUTED AREA

(SGEM Scientific GeoConference, 2004, E.N. Pentcheva, R. Atanassova, M. Karadjov, G. Satchanska)

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Experimental modeling with the aim of elucidation of the geochemical behaviour of heavy metal pollutants (Pb, Zn, Cd, Cu, Ni, Mn, Fe) and As during interphase processes in metallurgy contaminated area are carried out in 3 aspects: I. Water-soil interaction chemical simulation: 3D –lixiviation of soils and acid rain impact modeling, revealing consequences for a secondary remobilization and increasing the environmental risk for groundwater, vegetables, etc. II. Sorption ability of soils with fixing possibilities, ...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

HISTORY, THE PRESENT AND PERSPECTIVES OF THE NORTH BOHEMIAN BROWN COAL BASIN AREA RECLAMATIONS

(SGEM Scientific GeoConference, 2004, M. Rehor, M. Safarova, T. Lang)

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Brown coal is the only significant domestic fossil raw material, without which the Czech Republic would become fully dependent on energy sources import. More than 70 \% of mined brown coal comes from North Bohemian Basin these days. Open cast brown coal mining has lead to large damage on the landscape. That is why the reclamation work has become important on principle recently. The technology of reclamation passed through qualitative development within the past twenty years. The construction of mine dumps has been...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

PLANNING OF SURFACE CONFIGURATION AND RECULTIVATION IN THE TKI/MUGLA BROWN COAL MINING AREA

(SGEM Scientific GeoConference, 2004, M. S. Delibalta)

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When planning and landscaping areas to be recultivated after the cessation of mining activities in brown coal opencast mine areas, limiting conditions as regards natural space, economy, technical safety and legal regulations must, in particular, be taken into account. The present features of the landscape have been created by human activity throughout centuries and can only be preserved. The preservation of native fauna and flora is to be ensured by a network of biotopes which will include the zone in front of the...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

POTENTIALITIES OF ECOLOGICAL MAPPING

(SGEM Scientific GeoConference, 2004, T. Bandrova)

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The report presents a definition of ecological mapping and classification of maps represented environmental pollution. Examples of mapping on ecological theme in Bulgaria are presented – ecological atlas, ecological maps illustrated statistical data, student’s works and maps for school atlases. The themes of data collection, cartographic methods of representation and mapping of ecological elements give potentialities of ecological mapping. As a result of experiments in this kind of mapping a way for a complex ...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

PROBLEMS OF RADIATION PROTECTION DURING THE EXECUTION OF PHARE PROJECT FOR REHABILITATION OF URANIUM INDUSTRY REGIONS

(SGEM Scientific GeoConference, 2004, P. Shmid, Рњ. Mladenov, M. Dimitrov, M. Voicheva, V. Tzvetanova)

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The PHARE Project “Supervision for closing of the Uranium Mines at Eleshnitza and Dospat” foreseen recultivation of tailing pond at hydrometallurgical plant “Zvezda”Eleshnitza, construction of Waste water treatment plant for drainage waters, and construction of depo for domestic wastes in quarry to mine “Dospat” – Barutin. The radiation protection during the rehabilitation engineering works is carry out in accordance with Inception Report present by Supervisor; the actual standard document; the permi...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

RADIOECOLOGICAL MONITORING AROUND THE WORKING AREAS ON THE SITES WITH URANIUM INDUSTRY, REHABILITATED BY PHARE PROGRAM

(SGEM Scientific GeoConference, 2004, Рњ. Mladenov, M. Dimitrov, T. Nedjalkova)

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In accordance with Tender conditions of Phare Project BG 9904-03-01-01 “Supervision for Closing of the Uranium Mines at Eleshnitza and Dospat” and Inception Report the Radiation Protection Program of the Supervisor are foreseen planning and carrying out of preliminary radioecological monitoring (“zero” monitoring). The goal of this monitoring is receiving of information before the starting of the project for comparison of the effect of improving after the realization of the planed activities. Around the tw...

Ecology and Environmental Protection2004
4th International Scientific Conference - SGEM2004
Publication

RECENT MINERAL DEPOSITION AND REMOBILIZATION PROCESSES IN CLINKER WASTE HEAPS IN THE VICINITY OF KCM SMELTER, PLOVDIV

(SGEM Scientific GeoConference, 2004, R. Atanassova, T. Kerestedjian)

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Clinker waste heaps in the vicinity of KCM smelter, Plovdiv, Bulgaria, expected to be relatively insoluble, and hence inactive according to the environment, were found to be affected by burning of spontaneously ignited carbonaceous material contained in it. This way the waste heap represents an active chemical reactor. The investigation revealed that the process turns the chemically resistant glassy phases into water soluble compounds, abundantly found close to gas and vapour exhalations through deep cracks in the...

Ecology and Environmental Protection2004
3rd International Scientific Conference - SGEM2003
Publication

BASELINE ENVIRONMENTAL STUDIES FOR THE OIL AND GAS PROSPECTING AND EXPLORATION

(SGEM Scientific GeoConference, 2003, V. Georgiev, M. Toneva)

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The Bulgarian environmental legislation does not formulate special requirements for the performing of baseline environmental studies and the environmental impact assessment of the prospecting and exploration activities for oil and gas. The oil and gas exploration and prospecting activities are usually performed on areas of significant size, and are connected with specific impact on the environment, therefore it is accepted in the good international oil practice to perform obligatory baseline environmental studies ...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

CH4MIN TECHNOLOGY: METHANE EMISSIONS MITIGATIONS AND HEAT RECOVERY FROM COAL MINES

(SGEM Scientific GeoConference, 2003, H Sapoundjiev)

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The opportunity for heat recovery and greenhouse gas elimination from dilute methane emissions from coal mine ventilation air, oil and gas industries and landfill by using a Catalytic Flow Reversal Reactor (CFRR) technology is discussed. The CFRR technology has been experimentally proven to eliminate methane as dilute as 0.1 \% v/v in air, with no requirement for external heat. Indeed, for concentrations above 0.3 \%v/v, the methane heat of oxidation can be recovered with efficiency up to 90\% as 800oC hot air. Ut...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

CHEMICAL SPECIATION IN SOLUTION AND SUSPENSION OF METAL POLLUTANTS AND AS IN WATERS, CONTAMINATED BY METALLURGICAL AND MINING ACTIVITIES

(SGEM Scientific GeoConference, 2003, E.N. Pentcheva, A. Benderev, N. Velitchkova, L. Van’T Dack)

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Chemical species of existence and migration of water metal pollutants in solution and suspension in the significantly contaminated Plovdiv – Assenovgrad area are identified in their dynamics. Underground, surface and technological waters in their geochemical context are investigated (more than 2 000 data) as a ground of the speciation study (30 trace and 24 major elements). All the trace elements analytical researches are carried out by HR-ICP-AES Jobin Yvon ULTIMA 2 and the speciation study – by WATEQ 4F adap...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

CHEMISTRY OF THE FLY ASH AND ITS RESPIRABLE –SIZE FRACTION (<10ΜM) FROM THE POWER UNITS OF AGIOS DIMITRIOS THERMAL POWER PLANT, NORTHERN GREECE

(SGEM Scientific GeoConference, 2003, A. Georgakopoulos, K. Adamidou, E. Amanatidou, L. Tsikritzis)

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Major and trace element concentrations were measured in representative fly ash samples from four Power Units of Agios Dimitrios Thermal Power Plant, Northern Greece. Major and trace element concentrations were also measured in the respirable-size fly ash fraction (<10$\mu$m) of the same samples, separated from the bulk fly ash by laboratory treatment. The respirable-size fraction, compared to the bulk fly ash was found richer in CaO and poorer in all other major oxides (SiO2, TiO2, Al2O3, Fe2O3, MnO, MgO, Na2O, K2...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

ENVIRONMENT AND INFRASTRUCTURE MINING DAMAGES REHABILITATION

(SGEM Scientific GeoConference, 2003, S. Lipo, E. Hoxha)

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Region of Rehova is located on the North East of Albania. The Rehova mine is 27-km way from Korca region and approximately 14 km from the national road Korca- Erseka. The mine has an extension 1000 km and a falling 600m. Rehova mine from the administrative question belongs to Korca region. The mine is connected with non-asphalt road with national road Korca-Erseka. Most of the populated centers are Vithkuqi, Lubonja, Rroshanj etc. The population is taking care manly the animal husbandry. The relief is of alpine ty...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

GROUND-WATER DYNAMICS AS A FACTOR FOR CHEMICAL POLLUTION SPREAD AROUND THE METALLURGICAL PLANT OF ASENOVGRAD-PLOVDIV (BULGARIA)

(SGEM Scientific GeoConference, 2003, P. Gerginov, I. Petkov, V. Spasov)

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This study is conducted through a NATO – Science for Peace Project “WATERMETAPOL”. Ground-water flow is a major premise for the dissemination of chemical pollutants after they have somehow fallen into the aquifer. The metallurgical plant is settled on a large alluvial cone of Chepelarska River. A highly productive aquifer is formed in the coarse grained deposits. The general direction of ground-water flow is northward, where a final discharge zones are Maritza River and Chepelarska River (lower reach). Sever...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

MIGRATION ABILITY AND FORMS OF ELUATED METAL POLLUTANTS FROM SOIL AND DUMPS (PB - ZN SMELTER SITE)

(SGEM Scientific GeoConference, 2003, E. N., BENDEREV, A., ATANASSOVA, R. Pentcheva)

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Experimental modeling investigations in heavy metal polluted site of KCM (Pb-Zn smelter) are carried out in two aspects: 1) Determination of the migration ability of the metal (+As) pollutants during water-soil and water-clinker interactions effecting of water and MgCl2 lixiviation and 2) Establishment of the chemical speciation of the pollutants in the eluated liquid phase and of the mineral phases, controlling the water migration, in juxtaposition with the data for ground and surface polluted waters in the site....

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

MINERALOGICAL, GEOCHEMICAL AND MICROBIOLOGICAL STUDY OF METAL POLLUTED SOILS, SEDIMENTS AND DUMP MATERIALS IN THE VICINITY OF THE KCM PB-ZN SMELTER, PLOVDIV REGION, BULGARIA

(SGEM Scientific GeoConference, 2003, R. Atanassova, T. Kerestedjian, G. Satchanska)

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The predominant part of the soils in the studied area is alluvial soils with highly variable mechanical composition. According to their grain-size composition soils range from loamy sand, loam, to silty loam and in few cases clay loam. Analyses of the mineral composition of soils show that clay minerals and quartz are the dominant constitutions. Other registered minerals are Kfeldspar, plagioclase, calcite and dolomite with variable amounts. The distribution of heavy metals and As in soils is influenced by natural...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

OCCURRENCE AND EVOLUTION OF HEAVY METALS AND AS POLLUTION IN WATERS AND VEGETABLES IN PLOVDIV – ASSENOVGRAD AREA

(SGEM Scientific GeoConference, 2003, E. N. Pentcheva, N. Velitchkova, M. Karadjov)

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The degree of heavy metal (+As) water and vegetable contamination due to mining and metallurgical activities in the studied area is evaluated in individual and integral aspects. 267 ground, surface and waste water samples, according to the proposed grid, were investigated for trace elements, 56 of them for 34 elements: Al, As, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sb, Zn, Hg, Be, B, V, Sn, Mo, Se, Ag, Te, Tl, Ti, U, Ca, Li, Mg, Sr, Bi, Ga, In, K, and Na. The analytical work is performed with inductively coupled plas...

Ecology and Environmental Protection2003
3rd International Scientific Conference - SGEM2003
Publication

OMV’S APPROACH TO BLOCK VARNA, OFFSHORE BULGARIA

(SGEM Scientific GeoConference, 2003, W. Klammer, G. Georgiev, T. Eder, R. Gambini, P. Seifert)

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The presentation starts with a comparison between North Sea and West Black Sea in respect of maturity of hydrocarbon provinces and exploration efforts. In continuation of the presentation the integrated approach of OMV will be explained, the first reprocessing results of 1992 seismic vintage will be discussed and all planned further steps will be introduced which will lead to hydrocarbon play definition.

Ecology and Environmental Protection2003
2nd International Scientific Conference - SGEM2002
Publication

ASSESSMENT OF DAMAGES TO LANDSCAPE AT OPENCAST MINING

(SGEM Scientific GeoConference, 2002, P. Petrov, V. Georgiev, M. Nesheva, M. Toneva, L. Marinova)

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The methodology currently in use that is approved by the Ministry of Environment and Waters in “ Methodological guidance for the scope and content of reports on past contamination damages at privatization” (1998) does not provide opportunity to assess impacts on landscape that are the main geo-ecological damages typical for opencast mining. In the present paper methodological approaches based on theoretical formulations and practical experience adopted both nationally and internationally related to assessment ...

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

ENGINEERING RADIOECOLOGY – APPROACH TO ENVIRONMENT RECREATION AFTER THE LIQUIDATION OF URANIUM INDUSTRY PROJECTS

(SGEM Scientific GeoConference, 2002, I. Ionchev)

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The termination of mining and processing of uranium ores lead to either conservation or liquidation of uranium industry projects in a lot of countries, including Bulgaria. The liquidation of uranium industry is a problem of interdisciplinary character where problems of medicine, dosimetry radiochemistry, radio-physics, management, economics and engineering interface. All these topics define the radio-ecological engineering as a part of ecology divided into two main branches: recreation at technogenically elevated ...

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

ENVIRONMENT PROTECTION ON UNDERGROUND COAL GASIFICATION IN YUGOSLAVIA

(SGEM Scientific GeoConference, 2002, S. Ilic, T. Jubaranovic, G. Dimkic)

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Paper has show explorations of negative causes of underground coal gasification impacts to environment. Also is given view on importance of exploration on conquering technology of underground coal gasification in concrete deposit conditions.

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

ENVIRONMENTAL REQUIREMENTS FOR THE MINING SECTOR

(SGEM Scientific GeoConference, 2002, M. Smarandescu)

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The National Agency for Mineral Resources (NAMR) is the competent authority that is responsible on behalf of the Government of Romania to manage Romania’s mineral resources and to enforce the provisions of the Mining Law and related regulation concerning the prospecting, exploration, exploitation and capitalization of mineral resources deposits. NAMR has the obligation to monitoring the application of the measures established with regard to the protection of the soil and subsoil during and after the mining activ...

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

EVALUATION OF DAMAGE RISK OF THE GROUND VIBRATION INDUCED BY BLASTING IN A QUARRY

(SGEM Scientific GeoConference, 2002, A. Kahriman, A. Karadogan, G. Tuncer, S. Gorgun, S. Guven, A. Ferhatoglu, T. Gezbul)

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With the general trend toward larger blasts in mining, ground vibration and air blast problems and complaints have significantly increased. With increasing environmental constraints on the levels of disturbance induced by blasting operations upon nearby residents, there is an increasing need to be able to design cautious blasting with greater precision. Therefore, determination of maximum amount of explosive per delay for a certain distance especially in large blasts is of great importance for the elimination of t...

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

GEO- ECOLOGICAL MONITORING OF CONTAMINATION OF UNDERGROUND WATERS IN REGION OF LARGE-SCALE TECHNOGENY INFLUENCE

(SGEM Scientific GeoConference, 2002, M. A. Zhuravkov, K. R. Al-Momani, I. S. Nevelson)

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In the reports are considered the problems of analytical description the processes of geomigration of pollution of underground waters and building up the special system of hydrogeological researches as a part of general system of geoecological monitoring . The basic mathematical models of a filtration and masstransfer are considered and analysed which can be used for exposition of migration of hydrocarbons in underground waters.

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

PARTICIPATION OF ENTERPRISE MINE SURVEYING SERVICE IN ENVIRONMENT MANAGEMENT SYSTEM ON EXAMPLE OF PA “BELARUSKALY”

(SGEM Scientific GeoConference, 2002, P. Smirnov, E. Denkevich)

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Republican unitary enterprise (RUE) PA ”Belaruskaliy” is one of the most largest world producers of potassium fertilizers. Significant volumes of production expect a significant negative influence on the environment. This report has its aim a showing of the forms and methods of participation of mine surveying service of PA ”Belaruskaliy” in realization of program “Ecological politicians of enterprise”.

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

PRINCIPLES AND ORGANIZATION OF A SYSTEM FOR ENVIRONMENTAL MONITORING OF REGIONS IN THE REPUBLIC OF BULGARIA, AFFECTED BY URANIUM INDUSTRY

(SGEM Scientific GeoConference, 2002, L. Ionchev)

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When carrying out the activities, related to the exploration, operation and processing of uranium ore in Bulgaria the environmental protection was not among the priorities. As a result of many years of industrial activity the technogenically increased natural radiation background in some regions has reached significant levels and the chemical pollutants has threatened the pools with clean water and the ground surface. The cessation of work for uranium mining and milling was done in a hurry, without preliminary pre...

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

RADIOACTIVE POLLUTION IN SURFACE WATERS OF THE ZLATARITSA RIVER AND INFLUENCE ON THE MESTA RIVER

(SGEM Scientific GeoConference, 2002, L. Ionchev, B. Lizama)

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The Zlataritsa river is located in the South-western part of Bulgaria and mouths into the Mesta river. The Zlataritsa river passes through Eleshnitsa settlement where mining sites for exploitation and treatment of uranium ore are located. This paper presents the river pollution of uranium and radium as a result of mining activities in the examined region. The data used are for three periods - during the complete productive engagement, during the technical liquidation and after the end of technical liquidation. The...

Ecology and Environmental Protection2002
2nd International Scientific Conference - SGEM2002
Publication

STRATAL WATER REMEDIATION IN CASE OF URANIUM IN-SITU LEACHING

(SGEM Scientific GeoConference, 2002, V. G. Yazikov, V. L. Zabaznov)

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Under the effective legislation of the Republic of Kazakhstan, Stratal underground waters after uranium mining from stratum-infiltration deposits subject to rehabilitation to initial state. In this connection, the 13- years test with respective monitoring of aquifer on Irkol deposit has been done. Observations have proved that ore-bearing aquifer area of about 20000 square meters is almost rehabilitated to its initial hydro-chemical state. To intensify strata waters restoration, method of forced solution drawing t...

Ecology and Environmental Protection2002
1st International Scientific Conference - SGEM2001
Publication

BIOACCUMULATION OF RHENIUM IN GREEN PLANTS. NEW POSSIBILITY FOR ITS RECOVERY

(SGEM Scientific GeoConference, 2001, Ognyan D. Bozhkov, Lyudmila V. Borisova)

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It is known that rhenium is easily accumulated in green leaves and plants, its amount in them exceeding many times its occurrence in the earth’s crust (7x10-8\%). We have established that rhenium is accumulated in the chlorophyll, preferably as Mg(ReO4)2. Laboratory experiments with green geranium (Pelargonium) planted in soil spiked with rhenium (1 mg Re per g of soil) reveal that in the first 7 days after the soil is spiked rhenium content in the leaves is 20 mg g-1 and after 21 days it is increased to 100 mg ...

Ecology and Environmental Protection2001
1st International Scientific Conference - SGEM2001
Publication

ECONOMIC VALUATION OF MINED LAND RECLAMATION: AN APPLICATION OF INDIVIDUAL TRAVEL COST METHOD IN GREECE

(SGEM Scientific GeoConference, 2001, D. Damigos, D. Kaliampakos)

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During last decades a systematic effort is being carried out to assign monetary values on environmental assets. Environmental valuation methods namely the Contingent Valuation, the Travel Cost and the Hedonic Pricing are now well established approaches of benefit assessment. Yet, they have been little applied in relation to mining reclamation schemes. As a result, financial analysis is limited to monetary value derived from construction costs and revenues from commercial utilization of the site, e.g. when the area...

Ecology and Environmental Protection2001
1st International Scientific Conference - SGEM2001
Publication

ENVIRONMENTAL MANAGEMENT AND MONITORING AT NAVAN CHELOPECH AD AND BIMAK AD, COMPANIES INVOLVED IN MINING AND PROCESSING OF GOLD-COPPER ORES

(SGEM Scientific GeoConference, 2001, Irena Stambolieva)

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Mining and processing of natural resources is definitely exerting adverse impact upon the waters, soil and free air in the production areas. The hydraulic facilities for settling and decanting of metallurgical tailings, waste rock stockpiles, subsidences and polluted rain waters represent the agents of negative influence. Regretfully, the requisite measures aimed at the surface and sub-surface environment protection are behind time. The after-effect from mining activities will be reminiscent of the wounded nature ...

Ecology and Environmental Protection2001
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