The main procedure and influence factor of the ac-tive sludge process is introduced,and then the kinds of de-velopment of process,the research and development direc-tion are proposed.

• 介绍了活性污泥法的主要流程与影响因素,综述了活性污泥法发展的种类,并展望了活性污泥法的研究和发展方向。