CAJ | 학술논문

耦合太阳光催化氧化和有机膜分离技术，设计了一种新型太阳光催化氧化-膜分离三相流化床反应装置(简称反应装置)，并对平均粒径0.22μm颗粒状TiO2催化剂在反应装置中的悬浮性能进行了研究。结果表明：增加TiO2投加量和光催化反应区曝气量均使 TiO2悬浮浓度升高、直至最大平衡悬浮浓度，同时 TiO2沉积现象亦随之变得严重，最佳曝气量和 TiO2投加量分别为0.30 m3?h-1和10.00 g。气冲洗使反应装置中 TiO2悬浮浓度保持恒定，且适宜的气冲洗时间和气冲洗时间间隔分别为10 s和40 min。连通管上的阀门全开时膜分离器中TiO2悬浮浓度始终大于半开时的，而气冲洗前管式反应器中TiO2悬浮浓度在阀门全开时小于半开时的；膜出水对TiO2悬浮性能的影响很小。
우합태양광최화양화화유궤막분리기술，설계료일충신형태양광최화양화-막분리삼상류화상반응장치(간칭반응장치)，병대평균립경0.22μm과립상TiO2최화제재반응장치중적현부성능진행료연구。결과표명：증가TiO2투가량화광최화반응구폭기량균사 TiO2현부농도승고、직지최대평형현부농도，동시 TiO2침적현상역수지변득엄중，최가폭기량화 TiO2투가량분별위0.30 m3?h-1화10.00 g。기충세사반응장치중 TiO2현부농도보지항정，차괄의적기충세시간화기충세시간간격분별위10 s화40 min。련통관상적벌문전개시막분리기중TiO2현부농도시종대우반개시적，이기충세전관식반응기중TiO2현부농도재벌문전개시소우반개시적；막출수대TiO2현부성능적영향흔소。
Coupling with the technology of solar photocatalysis and organic membrane separation, a new type of three-phase fluidized bed reactor of solar photocatalysis-organic membrane separation was designed;and the TiO2 suspension performance in the reactor, which the average diameter is 0.22 μm, were investigated. The results show that TiO2 suspension concentration increase with the TiO2 dosage and aeration flux of the photocatalysis area until its maximum equilibrium suspension concentration, but TiO2 deposits phenomenon becomes serious at the same time. The optimal values of the aeration flux and TiO2 dosage are 0.30 m3?h-1 and 10.00 g respectively. Air rinsing in recycle pipe makes TiO2 suspension concentration invariable and the best time and intervals of the air rinsing are 10 s and 40 min respectively. TiO2 suspension concentration in the membrane separation reactor is always higher when the connection pipe valve is full open compared with half open. However, the concentration in the tube reactor before air rising is lower under the condition of full open. TiO2 suspension performance is hardly influenced by the membrane effluent.