CONTINUOUS-ACTION MEMBRANE APPARATUS Russian patent published in 1997 - IPC

FIELD: separation, concentration and purification of solutions. SUBSTANCE: apparatus has pipe unions for feeding initial solutions and discharging concentrate and permeate, and vertically mounted membrane elements made of porous tubular frames accommodating semipermeable membranes positioned on inner surfaces of frames. Membrane elements are combined in blocks, upper parts of which are provided with chambers and resilient casings. Each two blocks of membrane elements in their lower part are combined to make sections, and one chamber of one of blocks in each section is connected with oscillator. EFFECT: improved quality of separation. 1 dwg