加压溶氧光催化反应器中降解活性艳红X-3B的研究

Study on the Degradation of Reactive Brilliantred X-3B in the Pressurized Photocatalytic Reactor with Oxygen

首次探讨加压溶氧条件下pH值、TiO2投加量及温度等对活性艳红X-3B的降解和脱色的影响,结果表明,加压条件与常压条件下变化趋势基本一致,加压充氧相比加压充N2更有助于活性艳红X-3B的降解与脱色,其中,加压使溶液中溶解氧增加是导致活性艳红X-3B的降解与脱色的主要原因。COD的降解与色度的褪除成正相关,脱色率越高COD的降解率越高。

The effect of pH value, TiO2 dosage and temperature on the degradation and decoloration of Reactive Brilliant Red X-3B was discussed under pressurized oxygen conditions, The results show that the changed trend of degradation and decoloration under pressurization oxygen conditions was as same as that under normal atmospheric conditions. And the pressurization oxygen was propitious to enhance the degradation and decoloration of X-3B. The main reason for degradation and decoloration of X-3B was not due to pressurization but to the dissolved oxygen. The degradation of COD was positively correlated with decoloration. That is, the higher the decoloration was, the better the COD was removed from the water.