Evaluation of Acid Drainage in Ore Deposits
B. N. Ryzhenkoa, *, T. P. Belovab, **, A. E. Ryabenkoc, ***, and E. V. Cherkasovaa
Translated by G. Krichevets
aVernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
bResearch Geotechnology Center, Far East Division, Russian Academy of Sciences, Petropavlovsk-Kamchatskii, 683002 Russia
cSHANEKO JSC, Moscow, 115522 Russia
Correspondence to: *E-mail: ryzhenko@geokhi.ru
Correspondence to: **E-mail: belova@kscnet.ru
Correspondence to: ***E-mail: shaneco.group@shaneco.ru
Received 10 June, 2014
Abstract—Water–rock–gas system is simulated using a technique based on the fundamental principles of modern hydrogeochemistry regarding the formation parameters of natural-water chemistry to show that groundwater pollution hazard at a gold-bearing placer is acute for any site of water exchange changing from passive to active. Under passive water exchange, the products of sulfide oxidation are accumulated; whereas under active water exchange, the oxidation products are leached out to form acid drainage flows. The treatment of acid drainage water and the neutralization of acid solutions are more effective under reduction or weakly alkaline conditions.
Keywords: computer modeling, environmental geology, acid drainage, ore deposits
DOI: 10.1134/S0097807816070125