Abstract: White plume from coal-fired power plants exerts certain effect on surrounding environment as apparent visual pollution. The condensable particles contained in wet plume can also cause pollution to local environment. Analyzing the white plume treatment of 2 × 300 MW coal-fired units in a power plant， three comprehensive transformation schemes were proposed and the advantages and disadvantages of each technical route were compared. The economic analysis on schemes was made by minimum cost method considering both capital expenditure and consumption. It provides a reference for white plume treatment scheme selection .

Key words: coal-fired unit, white plume, economic analysis, comprehensive transformation scheme, minimum cost method