METHOD AND APPARATUS FOR REMEDIATING BULK MATERIAL CONTAMINATED WITH A HEAVY METAL

摘要

A method and apparatus for remediating a bulk material contaminated with a heavy metal are provided. The apparatus (10) includes receptacles for contaminated material (12a, 12b) and a heavy metal remediation agent (20) ; a chamber (14) coupled to each of the receptacles; a valve between each receptacle and the chamber; a port (24) for introducing water into the chamber; and a mixer (32) coupled to the chamber. Heavy metal waste is remediated by loading wet or dry contaminated material into a receptacle, metering a predetermined amount of the contaminated material into a chamber coupled to the receptacle; loading a heavy metal-remediation agent into a second receptacle coupled to the chamber; metering a predetermined amount of the heavy metal-remediation agent from the second receptacle into the chamber; introducing water into the chamber; directing the contaminated material, heav metal-remediation agent, and water into a mixer and mixing same therein; and discharging the resulting treated material into a receptacle (38) .