Study on zero discharge technology of wastewater from power plant

This electronic document is a “live” template. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document. About 60 percent or 70 percent of the cities in China are short of water in different degree, thus the water resource is very shortage in China. The problem of water shortage has restricted the industrial development. The matter is especially severe in North China and the area with water shortage areas. It is critical to increase the concentrated ratio of the circulating cooling water and decrease the wastewater discharge for the power plant, where the circulating cooling water system is used. According to the characteristic of the wastewater in the power plant at present, the problems of the optimization of the wastewater treatment are put forward in this paper. What´s more, the technology of staged concentration of circulating water used for supplying water is designed, viz. the circulating cooling water is concentrated in stages and operation in series with the supplying water. The practical engineering experience in a certain power plant, indicates that it is profitable for the technology of the supplying water being series-wound concentrated stepwise. With the use of this technology, the number of the discharge of wastewater is reduced, all of which reveals the social, economical and environmental benefits.