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INTRODUCTION Within the scope of the recently started initiative SAFEMANMIN under 6th Framework Programme, a preliminary report about methods used for the characterization of mining wastes in several Eli countries (Austria, Italy, Greece, Poland, Norway, Spain, France, Germany, Bulgaria and Romania) has been complied. This study is based on the Reference Document on Best Available Techniques of Tailings and Waste-Rocks in Mining Activities, prepared by the IPPC Office in Seville (July 2004). It aims on establishin...

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...

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...