Abstract: The invention is a process and an apparatus for removing metal contamination from soil. In the method, the soil is treated to produce soil with a small particle size. The particulate soil is then separated into a coarse fraction and a fine fraction. The coarse fraction and the fine fraction are contacted with a leach solution in separate contacting zones to remove the metal contamination from the soil, the metal is removed from the leach solution and the leach solution recycled to the leaching zones.

Abstract: The invention is a process and an apparatus for removing metal contamination from soil. In the method, the soil is treated to produce soil with a small particle size. The particulate soil is then separated into a coarse fraction and a fine fraction. The coarse fraction and the fine fraction are contacted with a leach solution in separate contacting zones to remove the metal contamination from the soil, the metal is removed from the leach solution and the leach solution recycled to the leaching zones.

Abstract: The invention is an apparatus and process for recovering metal from a solution. This apparatus is a structure having an anode formed from a plurality of reducing metal elements and a cathode formed from a high surface area electrically conductive material such as metal wire. The reducing metal elements of the anode have a more negative standard state reduction potential than the metal to be recovered. This invention is also a process in which a metal is recovered by contacting a solution of a metal to be recovered with the apparatus of the invention.

Abstract: A guide bar is detachably clamped to the panel being cut with a pair of guide plates extending therefrom and registering upon the line to be cut. The guide bar is provided with a longitudinally extending slot or groove into which is engageable a guide block for longitudinal movement therealong. A power saw is detachably securable to the guide block which guides the saw blade along the line to be cut. The guide bar includes an underside clamp and spacer bar which spaces the panel above the supporting surface sufficient to give clearance to the underside of the saw blade as the panel is being cut.