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Mercury leaching from hazardous industrial wastes stabilized by sulfur polymer encapsulation

AuthorsLópez Gómez, Félix Antonio ; Alguacil, Francisco José; Rodríguez, O.; Sierra, M. J.; Millán, R.
Encapsulation process
Issue Date2015
CitationWaste Management 35: 301-306 (2015)
Abstract© 2014 Elsevier Ltd. European Directive 2013/39/EU records mercury as a priority hazardous substance. Regulation n° 2008/1102/EC banned the exportation of mercury and required the safe storage of any remaining mercury compounds. The present work describes the encapsulation of three wastes containing combinations of HgS, HgSe, HgCl2, HgO2, Hg3Se2Cl2, HgO and Hg0, according to patent of Spanish National Research Council WO2011/029970A2. The materials obtained were subjected to leaching tests according to standards UNE-EN-12457 and CEN/TS 14405:2004. The results are compared with the criteria established in the Council Decision 2003/33/EC for the acceptance of waste at landfills. The Hg concentrations of all leachates were <0.01mgHg/kg for a liquid/solid ratio of 10l/kg. All three encapsulated materials therefore meet the requirements for storage in inert waste landfills.
Identifiersdoi: 10.1016/j.wasman.2014.10.009
issn: 1879-2456
Appears in Collections:(CENIM) Artículos
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