【摘要】 在苯系污染物的光催化降解研究中 ,采用了三种反应器 :间歇式平板反应器 ,连续流平板反应器及三相流化床反应器 .连续流平板反应器可利用太阳光源 ,Ti O2 /砂子催化剂用量 0 .1 1 g/cm2 反应器 ,在一个日照的条件下 ,较低浓度的苯酚溶液可达到 72 %的去除率 ;三相流化床反应器内设 2 0 w紫外光灯一支 ,使用 Ti O2 /GAC催化剂 ,在一定的气、液上升流速下可以形成充分发展的流化床 ,反应效率高 ,可以全天候运行 ,运行容积负荷 9.45 mg苯酚 /L·h.更多还原

【Abstract】 Adopted three reactors during the research of photocatalytic degradation of benzo pollutants: intermittent flow flat board reactor, continuous flow flat board reactor and three phase fluidized bed reactor. The continuous flow flat board reactor using solar light as source, titanium dioxide (TiO 2) supported on sand as the catalyst which was 0 11 g per square centimeter of the reactor, attained 72% removal rate when treated the lower concentration phenol in a daytime light intensity. Three phase fluidized bed reactor, using a 20 W ultraviolet (UV) lamp in it and TiO 2/GAC catalyst, formed a sufficiently fluidized bed and had high reaction efficiency. At the same time, it could run day and night and the running load was 9 45 mg phenol per hour per liter volume.更多还原