The many mine wastes occurring in the Boccheggiano area (Southern Tuscany) are witnesses of the extensive mining activity protracted at least from xvth century A.D. Among the many others, four wastes (two waste dumps, one flotation tailings impoundment, and one roasting/smelting waste) and related drainage waters were investigated in order to ascertain the environmental effects of past mining activity. Mineralogy, bulk and mineral chemistry of solid samples, as well as metal and acidic contents of drainage waters were analyzed . Preliminary results indicate high, albeit extremely variable contents of polluting elements (Cu, Pb, Zn, Cd, Bi , As) in wastes. The fast decrease of metal and acid concentrations in drainage waters moving downstream the mine wastes, may be ascribed, other than to dilution effects, to metal sorption and precipitation of solid phases.
A geo-mineralogical investigation of mine wastes and drainage waters in the Boccheggiano mining area (Southern Tuscany, Italy): preliminary results / Benvenuti M.; Mascaro I.; Corsini F.; Lattanzi P.; Parrini P.; Tanelli G.. - STAMPA. - (1995), pp. 643-646. (Intervento presentato al convegno 3rd Biennial S.G.A. Meeting tenutosi a Prague nel 28-31 August 1995).
A geo-mineralogical investigation of mine wastes and drainage waters in the Boccheggiano mining area (Southern Tuscany, Italy): preliminary results
BENVENUTI, MARCO;MASCARO, ISABELLA;CORSINI, FERNANDO;LATTANZI, PIERFRANCO;PARRINI, PIERLUIGI;TANELLI, GIUSEPPE
1995
Abstract
The many mine wastes occurring in the Boccheggiano area (Southern Tuscany) are witnesses of the extensive mining activity protracted at least from xvth century A.D. Among the many others, four wastes (two waste dumps, one flotation tailings impoundment, and one roasting/smelting waste) and related drainage waters were investigated in order to ascertain the environmental effects of past mining activity. Mineralogy, bulk and mineral chemistry of solid samples, as well as metal and acidic contents of drainage waters were analyzed . Preliminary results indicate high, albeit extremely variable contents of polluting elements (Cu, Pb, Zn, Cd, Bi , As) in wastes. The fast decrease of metal and acid concentrations in drainage waters moving downstream the mine wastes, may be ascribed, other than to dilution effects, to metal sorption and precipitation of solid phases.
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