Integrated equipment for industrial wastewater treatment of electrodialysis desalination unit

Electrodialysis desalination deviceHomogeneous membrane has high ion selective permeability, low resistance, excellent stability, strong acid and alkali resistance, high concentration efficiency, and long service life. The homogeneous membrane electrodialysis process utilizes a homogeneous membrane to desalinate, concentrate, refine, and recover ionic substances in a solution under electrical operation. The principle of electrodialysis is to alternately arrange cation exchange membranes (C) and anion exchange membranes (A) between a pair of electrodes, thereby forming a desalination chamber and a concentration chamber. Put salt (NaCl) into the desalination chamber, and use direct current to gather cations (Na+) on the cathode side, which then move through the cation exchange membrane to the concentration chamber. In addition, anions (Cl -) aggregate on the anode side and move through the anion exchange membrane to the concentration chamber. In this way, salt is removed in the desalination chamber and synthesized in the concentration chamber.

Electrodialysis desalination deviceElectric driven membrane separation equipment is a physical and chemical process that utilizes the selective permeability of electric driven membranes to transfer ions from one part of water to another under the action of an external direct current electric field. The electrically driven membrane separation desalination device utilizes the electrodialysis process in multiple compartments to achieve the goal of desalination of water.

The electrically driven membrane separator consists of main components such as separators, electrically driven membranes, electrodes, and clamping devices. Electric driven membranes have selective permeability to ions of different charges. The cation membrane only allows cations to pass through and prevents anions from passing through; The anion membrane only allows anions to pass through and prevents cations from passing through. Under the action of an external direct current electric field, ions in water undergo directional migration. Due to the fact that the electrically driven membrane separator is composed of multiple compartments, the anions and cations in the dilute chamber migrate to the adjacent concentrated chamber, thereby desalinating the saltwater.

Application scope: desalination of seawater; Soy sauce desalination; Oligosaccharides desalination; Alkali waste liquid recovery; Recovery of acid pickling waste liquid from aluminum alloy window frames; Desalination and concentration of valuable materials.

The homogeneous membrane electrodialysis device produced by our company has the advantages of high ion selective permeability, low membrane surface resistance, excellent mechanical properties, high chemical stability, low solute diffusion coefficient, and the ability to separate monovalent and multivalent ions. There are various types of homogeneous membranes that can meet customers' separation requirements for different water qualities.