20090039029 | IRON OXIDE RECOVERY - A method for increasing recovery of particulate material from a fluid stream includes directing the fluid stream through a channel, conditioning the fluid stream by applying energy to the fluid stream sufficient to increase concentration of the particulate material, and recovering the particulate material from the fluid stream. The particulate material of interest may be iron oxide in stream of water. The step of applying energy may be performed by applying an electric field or a magnetic field to the fluid stream to facilitate the separation process. | 02-12-2009 |