A set of photocatalytic-ultrafiltration separation reactor for the degradation of acid blue 7 by using nano-particle TiO2 as photocatalyst has been designed.The experimental results showthat the well degradation effects of dye wastewaters are achieved by this reactor and TiO2 particle can be separated from water successfully.The results obtained from influencing parameters of photocatalytic membrane reactors′ kinetic studies indicates that the rate increases from 0.070 8 min-1 to 0.151 5 min-1 with increasi...