| 摘要 |
The present invention refers to a device and method for filtrating liquid-suspended solutes by reverse osmosis. The pressure required for performing said reverse osmosis is achieved by the centrifugal principle. One or a plurality of membrane containers are attached to a main central rotating axis by discs, tubes, or any other fastening means. The central axis is rotated at a speed enough to generate the required osmotic pressure. The containers are located in an annular arrangement. Each container has a rotating central axis for originating Taylor vortices upon rotation thereof, which are useful for avoiding the polarization of the semi permeable membrane concentration, thus increasing the pure liquid flow through out the membranes due to the vortex-generated shear forces. The central axis of each container includes a driving body i.e., a helix, which is actuated by the outlet flow of the filtrated liquid, and which provokes the axis to spin. The rejected liquid is returned to the ma in central rotating axis, thus recovering the potential energy of said liquid. The membranes have a longer useful life due to the formation of Taylor vortices.
|
