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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...

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...

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...

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...

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 ...

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...

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...

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.

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 ...

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.

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...

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...

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.

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”.

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...

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 ...

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...

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 ...

Ground vibrations and air blasts are integral part of rock blasting and unavoidable. Depending on level of the stresses produced from wave motion, they cause damage to buildings structures in the nearby residents by causing dynamic stresses that exceed the strength of building material or rock material. So ground vibration effects induced by blasting on building structures and human beings need to be predicted, monitored and controlled. In other words, prediction of ground vibration components is of great importan...

Uranium mining and milling in the palaeozoic schists and intrusions in the Buhovo area N of Sofia started in 1946 and abruptly ended in 1990. In order to minimize adverse effects on the hydrosphere a complex water management system was developed. The main purpose of this water management system was to provide control- and monitoring tools, enabling the heirs of the defunct mining area to reduce the inherent risks of the different water sources on the affected population’s health. The areas of critical influence ...