Formation, Prevention and Clearance of Foul for Evaporative Condensation in the Clarified Spent Wash

The component of the clarified spent wash and the characters of foul were analysed, the fouling behavior in the process of evaporative condensation in clarified spent wash, the main factors to affect fouling behavior and the methods to decrease fouling film thickness were discussed in the paper. The method to clear foul was tested by experiments.