膜蒸馏是在迅速发展的膜分离技术中,极有发展前途的新型分离技术。膜蒸馏是膜技术和蒸发过程结合的新型膜分离过程。具有相态变化。它利用疏水性微孔膜提供很大的传质表面来实现水溶液汽化和传质的分离过程。其传质推动力是膜热侧和冷侧水溶液间的温度差所引起传递组份的气相分压差。 Membrane distillation is a new type of separation technology that is very promising in the rapidly developing membrane separation technology. Membrane distillation is a novel membrane separation process that combines membrane technology and evaporation processes. With phase changes. It utilizes a hydrophobic microporous membrane to provide a large mass transfer surface for the vaporization and mass transfer separation of aqueous solutions. The mass transfer impetus is the difference in the partial pressure of the gas component of the transfer composition caused by the temperature difference between the hot side and the cold side of the membrane.