| 摘要 |
<p>A method for desalting sea sand is provided, which combines soaking and washing. The fresh water is injected to the top or bottom of the soaked sea sand. Because of high permeability of the sand, water pressure is generated on the top or bottom of the sea sand, which pushes the soaking water with increased chloride ion content. Then the soaking water is discharged from the sea sand. The chloride ion on the surface of the sea sand is washed repeatedly to accomplish the desalination of the sea sand. The method improves the effect and efficiency of sea sand desalination, and saves a large amount of fresh water. A device for desalting sea sand is also provided. The device has advantages of low prophase investment, low operation cost and long service life.</p> |
