Hefei Research Institute's capacitance deodorization technology is progressing to improve seawater salinity performance

Recently, the Institute of Solid Physics, the Institute of Solid Physics of the Hefei Material Science Research Institute of the Chinese Academy of Sciences, has developed a three -dimensional foam set fluid for seawater desalination based on capacitance. Increases the performance of seawater dehydration.

Researchers have developed a three -dimensional foam structural set flow to enhance the dehydration properties of liquid electrode capacitors and ion ion technology (FCDI), using its complicated mass transmission holes, smaller charge transmission distances in the tunnel, and large charged transmission on the surface of the foam surface. The area to increase the charging of the collector on the carbon plasma.

Compared with the traditional FCDI device, the new three -dimensional foam set fluid replaces the traditional two -dimensional plane collection, which enables the carbon plasma in the flow tract to better complete the charge transmission process and improve the salinity ability of the FCDI device. Electricity fields and flow field simulation of collecting flowers with different pores are found that when the pore diameter is at 30 pore density (PPI), the foam set fluid has less low -flow velocity areas and larger effective charge transmission areas. At the same time, it was found in the salt dehydration experiment that the 30PPI foaming fluid has a average dehydration rate of 3.29 microbol/square centimeters and a minute of charge transmission efficiency.

The researchers further carried out salinity tests to simulate seawater, the South China Sea, and the Yellow Sea. The results showed that the three -dimensional foam collector FCDI device had excellent seawater diluted performance, and the salt dehydration rate reached 99.9%, which can successfully lighten the seawater. The work is of far -reaching significance for the development and industrialization of subsequent capacitance deodorization in the field of water purification.

Compared with the traditional reverse osmosis and electrodium osmosis technology, the capacitance deodox technology (CDI) as an emerging seawater desalination technology has a unique advantage, such as efficient energy utilization efficiency, relatively low cost cost and the environment for the environment It is very friendly and has received widespread attention from researchers in recent years. Among them, FCDI, as a branch of capacitor deodorization technology, uses activated carbon water solutions to form the principle of dual -electrocarcons in the device. With pseudo -infinite adsorption capacity and high salt ions adsorption rate, it is considered to be dehydrated and salt and salt and Resource enrichment concentrated strong technologies. However, the current FCDI process still has problems such as limited charge transmission area and large charge transmission distance, which has weakened the collector's charge transmission capacity for activated carbon water solutions, and reduced the salinity performance of the FCDI device. Therefore, the optimization of the collector is optimized, thereby expanding the charge transmission area and reducing the distance transmission distance. It is essential for improving the process of improving FCDI dewration and promoting the process of seawater purification industrialization.

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