Seawater desalination parallel device based on ion concentration polarization effect

Abstract

The invention discloses a seawater desalination parallel device based on an ion concentration polarization effect. The seawater desalination parallel device mainly comprises three modules, namely an anode chamber, a desalination chamber and a cathode chamber, the parallelism of the device is embodied in two aspects: 1, parallelism of micron holes made of an ion selective membrane in a desalting chamber cavity; and 2, paralleling the desalination chamber. In order to completely describe the device, the cathode chamber and the anode chamber are also added, and the direction of the anions and cations in the whole device and the maintenance of the electrical neutrality of the system are described in detail. The whole device can be stably operated for a long time, and the three units execute different functions: the anode chamber is responsible for neutralizing redundant anions in the system, the cathode chamber is responsible for neutralizing redundant cations in the system, and the desalination chamber realizes the effect of sea water desalination through the selective permeability of the cation selective membrane. The device provides a complete and comprehensive seawater desalinationparallel method, and can be flexibly applied to seawater desalination industries of various scales.

Description

technical field [0001] The invention belongs to the field of seawater desalination equipment, and specifically refers to a parallel device for desalination of seawater based on ion concentration polarization effect. Background technique [0002] With the growth of population and the development of economy, the problem of water shortage in the world is becoming more and more serious. Since seawater resources account for about 97% of the total water resources, desalination of seawater into fresh water is one of the main means to solve the shortage of water resources. The existing seawater desalination technologies are mainly divided into two types: membrane method and distillation method, among which membrane method is mainly divided into electrodialysis method and reverse osmosis method, and distillation method can be divided into multi-effect flash method and multi-effect distillation technology. Reverse osmosis technology is the most mainstream seawater desalination techno...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide a seawater desalination parallel device based on the ion concentration polarization effect. There are problems such as technical membrane pollution, large equipment volume, and low output

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