The wastewater discharge requirements of thermal power plants under a power generation group are analyzed. The present situation of the water treatment systems are summarized. The ideas and countermeasures for wastewater treatment of thermal power plants are put forward. It points out that

on the basis of carrying out water affairs checking

perfecting wastewater monitoring system

strengthening management of water saving and diagnosis of existing water treatment equipments

the feasibility study should be carried out

the project design should be optimized

and the project establishment and management should be strengthened. Moreover

the operation and maintenance of the project should be strengthened after the project is put into operation. In addition

the high-salt wastewater treatment is a difficult point during the wastewater processing for coal-fired power plants. The relative technologies of the softening pretreatment stage and the concentration reduction stage for high-salt wastewater concentration are analyzed. It suggests that the economical and reasonable technology solutions be selected according to the actual situation of each power plant.