MIXED WASTE TREATMENT AND DISPOSAL USING MACRO VAULTS: ANINNOVATIVE APPROACH TO MACROENCAPSULATION OF MIXED WASTEDEBRIS AND RADIOACTIVE LEAD SOLIDS

摘要

Envirocare of Utah, Inc. (Envirocare) has developed, permitted, and implemented an innovativernapproach to macroencapsulation of mixed waste debris and radioactive lead solids. Thernengineered Macro Vault is a modular monolithic vault cast in place in Envirocare's Mixed WasternDisposal Cell. Envirocare uses Macro Mix, a proprietary cement-based encapsulant, to treatrnmixed waste debris and radioactive lead solids to meet Land Disposal Restrictions. Macro Vaultsrncan be constructed to accommodate essentially any waste form geometry, weight, or otherrnconsiderations. Regulatory approval to begin treatment with Macro Vaults was received inrnMarch, 2004. After a short operational implementation period, Envirocare has shifted essentiallyrnall macroencapsulation treatment operations to Macro Vaults. Macro Vaults provide a costeffectivernsolution for treatment of large and unique waste forms while ensuring compliance withrnLand Disposal Restrictions.