The effect of rotating magnetic field and ferrofiuid in NH3/H2O bubble absorption process was studied. The comparison of absorption rate and effective absorption ratio between still and rotating magnetic field was carried out. The results showed that the NH3/H2O bubble absorption can be strengthened by rotating magnetic field and ferrofluid. The enhancing influence induced by the rotating magnetic field was more effective than that of still magnetic field under the same conditions. The notion of absorption by rotating magnetic fluid （ARMF） was defined to characterize the effect of the rotating of the magnetic field in NH3/H2Obubble absorption process. The result that the ARFMs were all above 0 showed that the rotating of the magnetic field had positive effect in NH/H2O bubble absorption process. The possible mechanisms for the phenomena in experiments and related results were also explained.
rotating magnetic fluid