摘要：Entry into force of the Minamata Convention on Mercury has changed the supply-demand balance, leading to an oversupply of mercury worldwide. We assessed sulfurization and solidification technologies for wastes consisting of elemental mercury for disposal in specially engineered landfills. For chemical stabilization of elemental mercury, gas phase sulfurization, wet sulfurization in water phase and dry mechanochemical sulfurization were evaluated. Solidification for sulfurized mercury was examined using cement/mortar/concrete, dicyclopentadiene-modified sulfur and epoxy resin as solidification materials. In this research, crucial environmental requirements (limits of leaching and emission) for sulfurized and solidified products were defined and evaluated using three Japanese leaching tests (JLT-13, JLT-46 and a tank leaching test) and a headspace test. Overall, each sulfurization and solidification technology fulfilled the crucial environmental requirements for sulfurized and solidified products and compressive strength of the solidified products.
关键词：mercury wastes;Minamata Convention on Mercury;multiple protection;solidification;sulfurization
