نتایج جستجو برای: clayey
تعداد نتایج: 1462 فیلتر نتایج به سال:
Thousands of sites are contaminated with both heavy metals and organic compounds and these sites pose a major threat to the environment. Very few technologies, such as soil washing=flushing and stabilization=solidification, are available to remediate these sites; however, all these technologies are ineffective under low permeability and heterogeneous soil conditions. Previous studies have shown...
The clayey fissural fillings « 60!-lm and < 2!-lm fractions) associated with the NlOoo-1100E fractures, at the El Berrocal V mine, have been studied in relation to the natural radionuclide migration/retention processes in a fissured granitic environment. The fracture filled with pyrite, chalcopyrite, sphalerite, galena-bearing quartz, later mineralized by pyrite, pitchblende, carbonate and bari...
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