| 摘要 |
<p>Methods are disclosed for stabilizing a heavy metal in a heavy metal bearing paint residue to reduce leacing of the heavy metal from a waste subject to natural or induced leaching conditions or acid and water leaching tests by addition of environmentally safe, worker safe, multi-media compatible, non-separating and non embedding stabilizing agent and optional complexing agent. The stabilizing agent is added to the blast media, and provides effective reduction of heavy metal content in waste leachate and effectively removes paint residue without causing visual embedding on the substrate surface. The methods described herein may be used outside of or within an OSHA containment building or collection device. The resultant stabilized paint residue and spent blast media mixture is suitable for on-site reuse, off-site reuse, or disposal as RCRA non-hazardous waste.</p> |
