Researchers from Siberian branch of Russian Academy of Sciences developed an original technique for extracting gold and silver from multi-component solutions.
      
      This technology avoids cyanide, a toxic reagent, which is widely used for extracting gold from ores and recoverable materials. Suggested alternative is much less toxic thiocyanate.
      
      Cyanide enters lakes and rivers, causing massive deaths of plants and animals. Therefore new technology, developed in Krasnoyarsk, is environment friendly.
      
      Source: Science News