Artisanal and Small-Scale Gold Mining Without Mercury - EPASluices use water to wash ore or alluvium down a series of angled platforms. . Sluice design can lead to higher gold recovery if the force of the water traveling.alluvial gold separator,WC/97/014 A review of gold particle-size and recovery methods.gold occurring in alluvial and bed-rock deposits and the various methods used for its recovery. The aim of this review is to recommend methods for the recovery.
alluvial gold separator