The discharge of saline waste water from thermal power plants has caused serious environmental pollution. It is really hard to meet the wastewater quality discharge standards by using of one single and conventional water treatment methods

such as a physical

chemical or biological method. In order to prevent the serious problems of water treatment existing in the thermal power plants

a series of government policy on the zero wastewater discharge are introduced and implemented. The characteristics of saline wastewater quality in thermal power plants are also briefly analyzed. Several common evaporation methods and zero liquid discharge crystallization processes for saline waste water treatment in coal fired power plants are mainly introduced. Some applications of evaporation crystallization technology are enumerated in coal fired power plant

then the advantages of spray crystallization technology in treating saline wastewater are also pointed out

and it makes such an important reference for the zero saline waste water discharge in thermal power plants.