Numerical Simulation of Seawater Desalination Effect in The Micro-Nanochannel

Abstract In recent years, the study on the micro-nanochannel in the microfluidic technology has been made significant progress for which when inner walls charged can function similarly as ion permselective membrane. This article constructed one symmetric model with three parallel microchannels connected with two sets of nanochannel arrays and explained the mechanism of desalination within the channel by using numerical simulation method. For example, when the voltage difference, V cn , across the nanochannel array is equal to 10 V T , the desalting efficiency can have reached nearly 90%; as the V cn is increased continuously to 20 V T , the desalination rate will definitely exceed 99% and as the V cn increases the rate increases more slowly.