Water-based electrolyte solution separation method and device on basis of alternating magnetic field

Abstract

The invention discloses a water-based electrolyte solution separation method on the basis of an alternating magnetic field. An electrolyte solution stored inside the alternating magnetic field and an electrolyte solution stored outside the alternating magnetic field are separated through a cation exchange membrane and an anion-exchange membrane, and the cation exchange membrane and the anion-exchange membrane are respectively arranged at the two ends of the alternating magnetic field. The invention further discloses a device for realizing the method. According to the invention, continuous running can be realized, high pressure and high temperature conditions are not required, the consumed energy is low, the investment is small, and environment friendliness and high efficiency are realized; calcium carbonate and other inorganic salt scaling can be effectively prevented under existence of the magnetic field, and the method and the device are particularly suitable for concentration and dilution of high-concentration water-based solutions. In-situ treatment of the electrolyte solution is realized and the characteristics of simple process, high equipment efficiency, high convenience in control and the like are realized.

Description

technical field [0001] The invention relates to a water-based electrolyte solution ion separation technology, in particular to a method and device for ion transfer of a water-based electrolyte solution by using an alternating magnetic field. Background technique [0002] At present, the concentration and desalination of inorganic aqueous solutions are ubiquitous separation methods, such as the removal and concentration of water molecules in sodium hydroxide solution to obtain solid sodium hydroxide, and the collection of water molecules in seawater to obtain fresh water, that is, seawater desalination. Whether it is multi-effect evaporation, multi-stage flash evaporation or compressed air distillation, or the reverse osmosis method commonly used now to separate water molecules from water-based solutions, the original solution is concentrated, and the water molecules separated from the water-based solution are collected. get fresh water. Important physical properties of wate...

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Problems solved by technology

The thermal separation method needs to consume a lot of heat energy, subject to the influence of primary parameters and equipment effectiveness (series), the cost of water production is relatively high, and the recovery rate of fresh water is below 40%.

The reverse osmosis method is subject to the increase of osmotic pressure at high concentrations, requiring higher operating pressure, higher requirements for membrane modules, membrane shells and

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