Introduction of pulsations to the classical bubble columns makes it possible to reduce the size and velocity of flowing gas bubbles and to obtain nearly spherical shape. As a result, gas hold-up and interfacial area are increased which obviously has an effect on the intensification of mass transfer.

In the work the values of gas hold-up and volumetric mass transfer coefficient obtained in the pulsed bubble columns with static and pulsed aerator were compared. In the tests two types of aerators were used: the first one was static, while the other one was a pulsed aerator fixed rigidly on the surface of the exciter disk. In both cases pulsations with the resonant frequencies up to 70 Hz and amplitude of 0.25–2 mm were introduced into the system, and the apparent gas velocity was set within 3.1–9.3 mm/s.

Equations were proposed to calculate gas hold-up and volumetric mass transfer coefficient with accuracy of ±25% and ±30% for the aerator pulsating at resonance frequencies.

Using a pulsed aerator in most cases lower gas hold-up was obtained than in the case of a static aerator. The volumetric mass transfer coefficient was higher when the static aerator was used.

将脉动引入经典的气泡塔可以减小流动气泡的大小和速度并获得接近球形的形状。结果，增加了气体滞留量和界面面积，这显然对强化传质有影响。

在工作中，比较了在带有静态和脉冲曝气装置的脉冲鼓泡塔中获得的气体滞留率和体积传质系数。在测试中，使用了两种类型的曝气器：第一种是静态的，而另一种是牢固地固定在励磁盘表面上的脉冲式曝气器。在这两种情况下，共振频率高达70 Hz且振幅为0.25–2 mm的脉动都被引入系统，视在气体速度被设置在3.1–9.3 mm / s之内。

提出了方程来计算曝气器在共振频率下脉动时的气体滞留率和体积传质系数，精度为±25％和±30％。

在大多数情况下，与静态曝气机相比，使用脉冲曝气机可减少气体滞留量。当使用静态曝气器时，体积传质系数较高。