Simulation of Rotating Magnetic Field on Ion Distribution in Saltwater

摘要

The world is facing a severe crisis of fresh water shortage. Desalination technologies of seawater are very interesting and emerging alternative to fresh water sources. However, the conventional technologies consume too much energy and have other problems, which greatly restrict their popularization. A method for saltwater desalination is proposed based on rotating magnetic field eliminating the dissolved ions in salt water. The desalination function is realized by rotating magnetic field exerting Lorenz forces on the ions in the salt solution to separate the ions of the contrary sign. Four factors were simulated and analyzed to reveal their effect on the ion distribution, including salt concentration, magnetic field intensity and its rotating rate, and width of water pipeline. The results shows that the above four factors greatly affect the ion distribution characteristics in the water pipeline. This method is helpful in energy saving for seawater desalination.