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SWEMP 2002 Conference
Calgiari, Sardinia, 7-10 October 2002

The 7th International Symposium on Environmental Issues and Waste Management in Energy and Minerals Protection was held in Calgiari, Sardinia. It was last held in the US, Canada, Australia, Italy, Turkey and again in Canada in the year 2000. It is a biannual event and the next two symposia have been scheduled for Antalya, Turkey in 2004 and New Delhi, India in 2006.

It attracted over 210 participants and a wide range of quality papers from 37 countries of Europe, North and South America, Australia, Asia and Africa. 130 papers were accepted for oral presentation in two parallel sessions and 40 others were presented in poster sessions.

The goal of this Conference series is to discuss a number of technical, economic and legal aspects concerning environmental issues and to propose suitable solutions aiming at assuring the supply of raw materials and the availability of energy, while safeguarding the values of the surrounding territory, during the entire life cycle of industrial activities.

Technical sessions were focused on sustainable development, environmental impact assessment, waste management practices and environmental monitoring, environmental issues in open pit and underground mining, control of effluents from mineral processing, metallurgical and chemical plants, clean combustion engineering and alternative energy sources, emerging technologies for environmental protection, mine site closure and land rehabilitation, tailings disposal and rehabilitation, slope stability, acid rock drainage, soil/water pollution and decontamination techniques, environmental impacts including national reports and case histories, computer modeling and applications, waste/pollutants characterization and chemistry and recycling.

The sessions that the author could attend due to parallel papers were characterized by lively discussions, which were worthwhile.

The plenary session included three interesting keynote papers by P. Reid on sustainable development and mining, D.A. Summers on environmental enhancement through high pressure waterjet application and Z. Agioutantis and M. Karmis on SDPS for windows: an application for subsidence prediction, optimum mine design and environmental control.

The sustainable development session included, among others, the papers by R. McNamara and T. Cooney on the role of the imperial smelting process in the sustainable management of mineral wastes and other residues and K. L. Sandvik and H. Ese on the design of a pollution free new sulphide mine, based upon the experience from closure of Norwegian mines and ten years of subsequent research.

The environmental impacts assessment session included among others the papers by E.Y. Baafi on geostatistical site characterization of pollutants at Casey station in Antarctica and M.J. Garcia et. al., on characterization of organic (PAHs) and inorganic contamination associated to the risk assessment related to coal mines closure.

The wastes management practices and environmental monitoring session included, among others, the papers by R.H.P. Lingering et. al., on relation between the in-situ and the ex-situ quality of dredging sludge and S. Nicol et. al., on SGM Furtei gold project: environmental management and monitoring.

The control of effluents from mineral processing, metallurgical and chemical plants session, included among others the papers by E.W. Koch et. al., on an investigation of the chemistry involved in the mixing of an industrial effluent with fine ash, R.R. Carneiro et. al, on red mud neutralization and K. Fytas on air emissions and the Canadian metals industry.

The tailings disposal and rehabilitation session included, among others, the paper by R. Frilander on modeling approach: the environmental pollution caused by the seepage of the waste and tailings dam three case studies from Finland.

The clean combustion engineering and alternative energy sources session included among others the papers by M.N. Wendt and C.W. Mallett on utilization of solid and gaseous waste from coal mines for lightweight aggregate and M. Zilberchmidt et. al., on environmental and economic potential of thermal treatment of high sulfur coal wastes.

The mine site closure and land rehabilitation session included the papers by R. Ciccu et. al., on reclamation and environmental rehabilitation of a mine site: the case of Genna Luas (south western Sardinia), M. Kyzeridi et. al., on reclamation scenarios of mined out open pits using GIS tools and V. Pavlovic et. al., on open pit mines recultivation, reliability and control.

The acid mine/rock drainage and the soil/water pollution and decontamination techniques sessions included, among others, the papers by N. Tasse and D. Germain on performance of forestry wastes for the treatment of acid mine drainage through a reactive barrier, R.A. Kleiv and M. Thornhill on initial neutralization of acid mine drainage using magnesium rich olivine, K. Naicker et. al., on acid mine drainage arising from gold mining activity in Johannesburg, South Africa, R. Dessi et al., on remediation of soil contaminated by heavy metals: batch and kinetic studies for Montevecchio soils, S. Somot et. al, on leaching tests on pyritic mill tailings stabilized and solidified by lime-fly ash binders, A. Mameli et. al., on lead uptake by natural zeolites, J. Martins et. al., on vermiculite: a mineral to clean water in the mining industry and A. Krestou et. al., on uranium (IV) removal from aqueous solutions using natural zeolites.

The waste/pollutants characterization and chemistry session included among others the papers by E. Cukrowska et al., on column leaching and chemometric evaluation of the mobility of toxic elements in gold mine polluted land and F. Battaglia-Brunet et al., on arsenic oxidation by a chemo-autotrophic bacterial population: influence of dissolved bacteria population.

Finally, the recycling and recovery of useful components from industrial waste session included among others the papers by I. Tarasova et al., on re-use of iron-rich water treatment sludges, C.H. Sampaio et/al., on cyanide recovery in hydrometallurgical plants and T. Sasaoka et. al., on utilization of fly-ash as backfilling material in mining and civil engineering fields.

Very interesting technical tours were organized in mining areas and industrial plants, including the oil refinery at Sarroch, the Sulcis coal field and alumina plant with red mud embankment at Portovesme, the SMG gold operations and environmental reclamation at Furtei and the lead/zinc smelter at Portovesme and Genna Luas slag disposal facilities.

Last, but not least, the assistance provided by the symposium chairman Prof. Raimondo Ciccu and the conference secretariat (Kassiopea group) throughout the conference is greatly acknowledged.

Copies of the proceedings (ISBN: 88-900895-0-4) can be ordered to: SWEMP (R. Ciccu, Ed.), c/o DIGITA Dipartimento di Geoingegneria e Tecnologie Ambientali, Università degli Studi di Calgiari, Piazza d’Armi, 09123 Calgiari, Italy, Tel: +390706755526, Fax: +390706755523, Email: ciccu@unica.it, Web address: www.unica.it.

Dr. K. Komnitsas, National Technical University of Athens, Laboratory of Metallurgy. Email: komni@central.ntua.gr




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