为选定适合于气－固－液三相生物反应过程膜反应器中的膜材料，采用氧电极测试了几种收集到的聚砜、聚丙烯及聚偏氟乙烯中空纤维膜对氧气的通透性，其中的聚丙烯中空纤维适于做膜生物反应器中的透气膜．同时还测定了聚砜、聚偏氟乙烯和聚丙烯腈膜对水溶液中环氧丙烷的通透性，在实验条件下它们之间的差异不大． In order to select the membrane materials suitable for the membrane reactor of the gas-solid-liquid three-phase biological reaction process, several collected polysulfone, polypropylene and polyvinylidene fluoride Permeability, wherein the polypropylene hollow fiber is suitable as a breathable membrane in a membrane bioreactor. At the same time, the permeability of polysulfone, polyvinylidene fluoride and polyacrylonitrile membranes to propylene oxide in aqueous solution was also determined. There was no significant difference between them under the experimental conditions.