| The shortage of water resource, serious soil erosion and the declination of water environment have become the main restraining factors for the development of human society. As a new high technical industry, the desalination of sea water and bitter salt water is an efficient way to protect resource and create resource.This paper is focus on the principle and technology for desalination of sea water and bitter salt water; put forward a new thinking to the desalination which is used to solve the key problem. The existing problem in the going desalination ways such as high consumption of energy, corrosion to the equipment while salt water is hot, higher price and shorter useful life for the membrane which is used in the membrane separate technology. These problems limit the desalination method to spread and application in china. This paper is based on the thinking of light radiate the liquid surface desalt the seawater.Study on the basic character of light radiate, light source, radiation wavelength and structure of material through experiment; on the desalt efficiency of simulate experiment device. The results from the present investigation suggest that the specific wavelength which accelerates the volatilization of water molecular should locate in the infrared region. The main energy which impedes the water molecular to volatilize is the hydrogen bond. The energy absorbed by water is mainly used to destroy the hydrogen bond. Using the infrared wavelength as radiated light source as practical. The different light source and heat source show that in the same condition light has significant effect to accelerate the volatilization of seawater. In the process of desalination, the rate of volatilization is not influenced by the concentration of saline.Light radiate the liquid surface desalination technical has its incomparable advantages to the going desalt methods, in the same time it provide a new thinking for solar desalination. It should study in-depth as a new thinking of desalination. |
