title: Stabilization/solidification of munition destruction waste by asphalt emulsion.
abstract: Destruction of discarded military munitions in an explosion chamber produces two fractions of hazardous solid waste. The first one is scrap waste that remains in the chamber after explosion; the second one is fine dust waste, which is trapped on filters of gas products that are exhausted from the chamber after explosion. The technique of stabilization/solidification of the scrap waste by asphalt emulsion is described in this paper. The technique consists of simple mixing of the waste with anionic asphalt emulsion, or two-step mixing of the waste with cationic asphalt emulsion. These techniques are easy to use and the stabilized scrap waste proves low leachability of contained heavy metals assessed by TCLP test. Hence, it is possible to landfill the scrap waste stabilized by asphalt emulsion. If the dust waste, which has large specific surface, is stabilized by asphalt emulsion, it is not fully encapsulated; the results of the leaching tests do not meet the regulatory levels. However, the dust waste solidified by asphalt emulsion can be deposited into an asphalted disposal site of the landfill. The asphalt walls of the disposal site represent an efficient secondary barrier against pollutant release.
authors.affiliation: Tomas Bata University In Zlin, Faculty of Technology, Department of Environment, Protection Engineering, 76272 Zlin, Czech Republic.
authors.forename: Marketa
authors.initials: M
authors.lastname: Cervinkova
authors.forename: Milan
authors.initials: M
authors.lastname: Vondruska
authors.forename: Vratislav
authors.initials: V
authors.lastname: Bednarik
authors.forename: Antonin
authors.initials: A
authors.lastname: Pazdera
mesh_terms: D004655:Emulsions; D053834:Explosive Agents / Q000737:chemistry*; D006838:Hydrocarbons; D010316:Particle Size
chemical_list: D004655:Emulsions; D053834:Explosive Agents; D006838:Hydrocarbons; C006647:asphalt