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Blengini G.A.,Polytechnic University of Turin | Blengini G.A.,CNR Institute of Environmental Geology and Geoengineering | Garbarino E.,Provincia di Turin | Solar S.,Geological Survey of Slovenia | And 4 more authors.
Journal of Cleaner Production | Year: 2012

The mining/quarrying industry is a sector of industry where there are very few Life Cycle Assessment (LCA) tools, and where the role of LCA has been poorly investigated. A key issue is the integration of three inter-dependent life cycles: Project, Asset and Product. Given the unique features of mining LCAs, this Note from the Field presents a common methodology implemented within the Sustainable Aggregates Resource Management (SARMa) Project (www.sarmaproject.eu) in order to boost adoption of LCA in the aggregate industry in South Eastern Europe. The proposed methodology emphasises the importance of resource efficiency and recycling in the context of a Sustainable Supply Mix of aggregates for the construction industry. Through its adoption, aggregate producers, recyclers, and governmental planners would gain confidence with LCA tools and conduct consistent and meaningful life cycle analyses of natural and recycled aggregates. © 2011 Elsevier Ltd. All rights reserved. Source

Cardona A.,Autonomous University of San Luis Potosi | Cardona A.,RWTH Aachen | Varsanyi I.,University of Szeged | Kovacs L.O.,Hungarian Office for Mining and Geology | And 6 more authors.
Water-Rock Interaction - Proceedings of the 13th International Conference on Water-Rock Interaction, WRI-13 | Year: 2010

Ahydrochemical comparison between a carbonate (Mexico) and a non-carbonate (Hungary) system is presented. Major and trace elements, δ 2H and δ 18Ovalues were studied. Although the geological conditions and the concentration of the major elements were different, common features and/or processes were recognized. The main similarity was the distribution of the stable isotope δ values (meteoric and non-meteoric water), and the behavior of As and Mo oxy-anions. Mixing with highly saline water of sea origin is an important process in both areas. © 2010 Taylor & Francis Group, London. Source

Varsanyi I.,University of Szeged | Kovacs L.O.,Hungarian Office for Mining and Geology | Balint A.,University of Szeged
Hydrogeology Journal | Year: 2015

Hydro-chemical and isotopic data from different aquifers in the Great Hungarian Plain (the central part of the Pannonian Basin) were evaluated down to a depth of 2,740 m. The chemical and isotopic composition of water is influenced by its origin and by chemical and mixing processes. The analytical data and chemical considerations, together with geology, pressure conditions and evolution history of the area, explain the evolution of the subsurface water. Most of the samples are of meteoric origin, but there were some samples with a non-meteoric contribution, as indicated by the water stable isotopes, and these were identified as seawater trapped during the sedimentation in Lake Pannon. The sea contribution is traceable by the shifts in δ18O and δ2H and the chemical composition of the water, and is explained with an upward-driving force. Chemical considerations and spatial variability of the dissolved components suggest that distinct water bodies, each with a specific origin and chemical evolution, can be separately identified. Although in the Quaternary layers there are water bodies that can be considered to display complete flow systems (from recharge to discharge), in most water bodies present infiltration was not identified. The lack of recent recharge to several water bodies in various places and depths suggests a separation of the recharge and the discharge that occurred not in space, but in time. A possible explanation of the cessation of recharge is a significant change in the hydraulic circumstances, probably the surface elevation. © 2014, Springer-Verlag Berlin Heidelberg. Source

Varsanyi I.,University of Szeged | Palcsu L.,Hungarian Academy of Sciences | Kovacs L.T.,Hungarian Office for Mining and Geology
Applied Geochemistry | Year: 2011

To establish the increase in temperature and the time span of the transition between the Late Glacial Maximum (LGM) and the Holocene, the noble gas content, 18O, 2H, 13C δ values, 3H and 14C activity and chemistry were studied in a groundwater flow system in Quaternary sediments in Hungary. The study area is a sub-basin of the Pannonian Basin, where the C isotope ratios are not influenced by carbonate reactions along the flow path, because the only water-rock interaction is ion exchange. The δ18O and δ2H values indicate a cold infiltration period, followed by warming, and, finally, warm temperature conditions. The noble gas data show that the average infiltration temperature was 3.3°C in the cold, 12.9°C in the warm, and intermediate in the transitional stage. Using the noble gas temperatures, geochemical batch modelling was performed to simulate the chemical processes. Based on the geochemical model, δ13C and 14C0 (initial radiocarbon activity) in the recharging water were calculated. Transport modelling was used to simulate the distribution of chemical components, δ18O, δ2H and 14C0, along the flow path. It was found that the main processes determining the chemical composition of the groundwater were dissolution/precipitation of calcite and dolomite during infiltration near the surface, and ion exchange along the flow path. In the recharge area the δ13C and 14C0 were controlled by dissolution and precipitation of carbonate minerals, C speciation, and fractionation processes. All these processes were influenced by the recharge temperature. NGTs calculated from the dissolved noble gas concentrations showed an average of 3.3°C for cold, and 12.9°C for warm infiltration, i.e. for the LGM and for the Holocene. The temperature difference was thus 9.1±0.8°C, which is one of the largest degree of warming detected by noble gases so far. The alkalinity indicates that carbonate reactions were unimportant along the flow path. Owing to the temperature dependence of the equilibrium constants, temperature conditions during infiltration have to be taken into consideration in radiocarbon age calculation. Dispersive transport along the flow path modified the chemical and isotopic composition of infiltrated water. The contribution of the old pore water, which was free of the 14C isotope, resulted in uncertainties in radiocarbon age determination. It was concluded that determination of the radiocarbon age or mean residence time requires detailed knowledge of the hydraulic conditions of groundwater. © 2010 Elsevier Ltd. Source

Agency: Cordis | Branch: FP7 | Program: CSA-CA | Phase: NMP.2011.4.0-6 | Award Amount: 1.69M | Year: 2011

ERA-MIN will, for the first time, bring together a significant number of funding / programming agencies in support of the development of the European non-energy mineral raw materials research area and provide a discussion forum with other European stakeholders involved in non-energy mineral raw materials research. It will aim at building a mirror group to the ETP-SMR, and liaise with non-energy mineral raw materials relevant European Commission (EC) policies and programs as well as with the projects funded by the EC. This will clearly contribute to pool EU capacities, foster EU competitiveness in line with sustainable development ethics, and contribute to the EU security of supplies. ERA-MIN will contribute to the Raw Materials for a Modern Society Partnership Initiative as it develops, providing inputs from national and regional research programming agencies and their related expert institutions, establishing comprehensive coordination as a permanent feature of the European non-energy mineral raw materials research community (ENERC). ERA-MIN will provide systematic information on its activities to the ESFRI, the OECD Global Science Forum, and the ERC. ERA-MIN will pave the way for coordinated actions between several of its participants, as well as pan-European programs, in the domains of research, outreach, training, mobility, or evaluation procedures. Through these measures, ERA-MIN will help to mobilise the intellectual resources of the whole of Europe in the preparation of the plans for the future, needed to address the non-energy mineral resources related global challenges; and foster initiatives by which a unified Europe will be progressively able to act as an equal partner in collaborative enterprises with the USA, Japan, and developing countries. It will as well be a source of support to developing countries in line with the Action Plan decided by the African and EU in November 2010.

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