FLAT-CHAMBER TYPE ELECTROBAROMEMBRANE APPARATUS Russian patent published in 2019 - IPC B01D61/42 B01D61/14 

FIELD: technological processes.

SUBSTANCE: invention relates to separation, concentration and purification of solutions by electro-microfiltration, electro-ultrafiltration, electro-nanofiltration, electro-osmofiltration and can be used in chemical, textile, cellulose-paper, microbiological, food and other industries. Flat chamber electro-baromembrane device consists of two flanges, separable solution inlet and outlet ports and permeate outlet, direct electric current supply device, alternating dielectric chambers of the body, connected by the protrusion-recess type, holes for supply of electric wires. At that, alternating dielectric chambers of housing with "protrusion" and with "recess" are made with cavity in form of small separation chamber in form of rectangular parallelepiped, thickness of which is equal to thickness of dielectric chamber of housing with "protrusion" and with "recess" from one of its side with sealing surface of stud-groove to other, height is three times more than its thickness, and width is equal to width of small cathode and anode membranes, respectively, for small cathode and anode membranes on sealing surface of dielectric chambers of housing with "protrusion" and with "recess" there is a depression with value of 1 mm, for installation of small spacer of rectangular shape, which compacts perimeter of small cathode and pre-anode membranes, respectively, in place of installation of drain net from two opposite ends on flat surface are installed in series monopolar-porous plates electrode-cathode and small electrode-cathode, unipolar-porous plates electrode-anode and small electrode-anode respectively, porous basic plate and a low porous cathode substrate from Whatman paper, a porous substrate from Whatman paper and a small porous anode substrate from the tray, respectively, a cathode membrane and a small cathode membrane, anode membrane and small anode membrane, respectively, on the dielectric chambers of the housing with the "protrusion" and with the "recess" there are chamber nozzles installed on the front and rear walls of inlet of the initial solution and output of the anode and cathode retentate respectively, which are arranged at distance of 30 and 70 mm and 50 and 90 mm respectively from apparatus base along central vertical axis of housing chambers with "protrusion" and with "recess" respectively. At that, all adjacent interstitial nets of turbulence promoter have notches of rectangular shape with width of 2 mm, which edges are bevelled by angle 45°, depth of notches is half of thickness of cuts of cation-exchange and anion-exchange membranes, and notches are turned to anode and cathode membranes.

EFFECT: technical result consists in increase of solution separation area and productivity by cathode and anode permeate, reduction of hydraulic resistance, improvement of quality and efficiency of separation of solutions, reduction of material consumption per unit volume of device.

1 cl, 5 dwg