FLAT-CHAMBER ELECTRIC BAROMEMBRANE APPARATUS Russian patent published in 2024 - IPC B01D61/14 

FIELD: various technological processes.

SUBSTANCE: invention relates to separation, concentration and purification of solutions by methods of electro-microfiltration, electro-ultrafiltration, electro-nanofiltration, electro-osmofiltration. and can be used in chemical, machine building, food industry, agricultural sector. Flat-chamber type electric baromembrane apparatus consists of two dielectric flanges of the housing, metal plates, devices for direct current supply, unions for inlet and outlet of separated solution, grid of turbulence promoter, cathode and anode membrane, porous substrate. Separation chambers feature identical volume and shape. In alternating dielectric chambers of the housing with "ledge" and with "recess" there are three overflow channels, respectively, connecting adjacent separation chambers along the solution circulation path, which coincide with the same number of holes in the gaskets. There are also three horizontal and vertical truncated conical holes, which are installed in a row at a distance of one hundred and of fifty millimetres from each other along the vertical and horizontal axes, respectively. Dielectric flanges of the housing are equipped with three unions for inlet and outlet of the separated solution, which are installed in a row at a distance of fifty millimetres from each other along the horizontal axis, respectively. Third and first dielectric chambers of the housing with a "recess" in front and behind are equipped with three chamber unions for inlet of the initial solution and outlet of the retentate, which are installed in a row at a distance of one hundred millimetres from each other along the vertical axis. In alternating dielectric chambers of housing with "ledge" and with "recess", housing flanges there are two holes for supply of electric wires, in which there are also two polymer compounds and two auxiliary inclined channels connected to two channels for removal of cathode and anode permeate and two unions for removal of cathode and anode permeate, rectangular pins, located at equal distance from weaves of cation-exchange and anion-exchange membranes and directed towards cathode and anode membranes, respectively.

EFFECT: invention provides an increase in the area of separation of the solution per unit volume of the apparatus, reduction of hydraulic resistance in overflow channels for circulation of separated solution, increasing the productivity and efficiency of solution separation, reducing stagnation on the path of removal of cathode and anode permeate.

1 cl, 8 dwg