Precipitation of Salts during Capillary Hoist in Solutions in Subsurface Aeration Zone
A. G. MIKHAILOV, M. YU. KHARITONOVA, I. I. VASHLAEV, M. L. SVIRIDOVA
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, ul. Akademgorodok 50, Bld. 24, Krasnoyarsk, 660036 Russia
Keywords: пористый массив, зона аэрации, испарительный барьер, водный раствор солей, концентрирование солей, porous rock mass, aeration zone, evaporation barrier, brine, salt concentration
Abstract
Series of experiments on seepage of water solutions of nickel and cobalt though an evaporation barrier in a porous low rock mass is described. Evaporation intensity shows tendency toward linear decrease with time due to change of the rock mass porosity as a consequence of salt precipitation in the subsurface aeration zone. It is possible to control evaporation intensity by redistributing vertical zonality of precipitate in the subsurface zone. The authors find mechanism of precipitated salt distribution in subsoil.
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