http://www.lazyreign.com/gold-dust/
Gold Dust
How do you extract gold dust in the sand without using water?
if ever you do not have a solution on what type of control so no effluent can put in the water supply on water use in the extraction?
Drywashers are used by gold prospectors in the desert. There are machines manual and battery operated. They work because gold has a specific gravity of 19.3 and the material means that the work is 7 or less. The material is classified and downloads into a hopper where it is further classified. The smaller material falls into a box that is inclined puffs of air are forced by the bottom of the box, making the material lighter for flying and falling in the box below. Over time they hit the ground. The heavier gold is trapped in rapids on the table since they are heavier and resist to be burned. Mercury will work in a small pan full of material, but if you want to recover gold from a volume of material a drywasher is the way to go. But the material must be very dry. moist soil clog up the machine. A free game plans can be found at www.gpaa.com. If you have any questions or email more concrete answer me. I have been mining gold for 16 years I am sure I can answer your question.
