一体式光催化-膜分离反应器处理酸性红B染料废水

Treatment of Acid Red B wastewater by integrative photocatalysis-membrane separation reactor

在自制的新型一体式光催化氧化-膜分离三相流化床反应器中进行降解酸性红B染料废水实验.结果表明:TiO2对酸性红B的吸附能力较低,且受废水初始浓度和溶液pH值的影响;一体式反应器多光源布置有利于反应器的稳定运行;内循环流速越大、TiO2悬浮浓度越低,则膜通量衰减越慢,其中内循环流速为主要影响因素;一体式反应器可长期、稳定地处理酸性红B废水.

Degradation of Acid Red B wastewater in integrative three-phase fluidized-bed reactor coupling with photocatalysis oxidation and membrane separation is investigated.The results show that the TiO2 has low adsorption capacity to Acid Red B,and is effected by the initial wastewater concentration and pH value.Multi-ultraviolet light arrangement in the bottom of integrative reactor is conductive to the stability during the reactor run.The membrane fouling can be retarded when the annular flow speed increases or the TiO2 suspending concentration decreases,and the former is the main influence factor on the fouling.The integrative reactor can degrade Acid Red B wastewater steadily for a long time.