A Composite Field Membrane Separation Experimental Device Applicable to Universal Flat Membrane Elements

Abstract

The invention discloses a composite field membrane separation experimental facility suitable for a general flat sheet membrane element. The experimental facility comprises ultrasonic transducers with body structures and external body structures, and a high-voltage alternating-current pulse power supply, wherein each body structure is symmetrical up and down, and is characterized in that three independent closed cavities, namely an upper feed liquid cavity, a lower feed liquid cavity and a filter liquor cavity in a membrane element, are formed by an upper clamp plate, a lower clamp plate, an upper cavity wall, a lower cavity wall and the middle membrane element; the lower end of an upper conductive screw rod extends into the upper feed liquid cavity to be adjustably connected with an upper electrode plate, the upper end of the upper conductive screw rod extends outside the lower clamp plate to be connected with the high-voltage alternating-current pulse power supply, the upper end of a lower conductive screw rod extends into the lower feed liquid cavity to be adjustably connected with a lower electrode plate, and the lower end of the lower conductive screw rod extends outside the lower clamp plate to be connected with the high-voltage alternating-current pulse power supply; the upper cavity wall and the lower cavity wall are both of translational square frame structures formed by lap joint of four L-shaped wall plates. According to the experimental facility, the length, width and thickness adjustment of the cavity is realized, various types of membrane elements can be changed, the use is flexible and convenient, and the universality is good.

Description

technical field [0001] The invention relates to the technical field of membrane separation, in particular to a composite field membrane separation experimental device suitable for general flat membrane elements. Background technique [0002] Membrane separation technology refers to the technology of separating, purifying and concentrating different components of feed liquid by using the selective separation characteristics of membranes and using pressure difference, concentration difference, electrochemical potential, etc. as driving forces. Membrane separation technology is widely used in petroleum, chemical industry, environmental protection, energy, medicine, food and water treatment and other fields. However, due to the phenomenon of concentration polarization, membrane fouling and membrane degradation in the membrane separation process, the current industrialized membrane separation systems generally have the problems of poor separation effect, high production cost, and...

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Problems solved by technology

The above results in poor versatility of the component and inconvenient use

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