Electrostatic waste separation process

Details Electrostatic waste separation process Electrostatic waste separation process

B - Operations, Transporting

09

B

209/55

B09B 5/00 (2006.01) B03B 9/06 (2006.01) B03C 1/00 (2006.01) B03C 3/00 (2006.01) B07B 1/00 (2006.01) B07B 4/00 (2006.01) B07B 9/00 (2006.01) B24C 9/00 (2006.01)

Patent

CA 2010187

ABSTRACT OF THE DISCLOSURE An electrostatic waste separation process for abrasive blasting residues containing an abrasive media and a hazardous material such as lead-based paint. A preconditioning stage as well as a postconditioning stage is used in addition to the electrostatic separation step. Preferably the preconditioning stage consists of the following steps: (a) a size classification step; (b) a ferromagnetic separation step; and (c) a gravity separation step. The concentrated hazardous material separated by this process can then be packaged in a container which can be safely transported, stored or disposed of. The nonhazardous blasting media may be recycled and reused or disposed of as a nonhazardous material.

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