The design of the disc turbine aerator and the oar turbine aerator are discussed.Their inspiratory capacity,air bubble diameter and distribution frequency are compared.

• 设计了圆盘型涡凹曝气头和螺旋桨型涡凹曝气头,比较了两种类型曝气器的引气量、曝气气泡直径、粒径分布等。