蜂窝陶瓷为生物膜载体的光催化/生物一体式反应器降解2,4,6-三氯酚

Integrated-Photocatalytic-Biological Reactor for Biodegradation of 2,4,6-Trichlorophenol Based on Ceramic Honeycomb Carrier as Biofilm

采用蜂窝陶瓷作为生物膜载体并与紫外光催化构成了一体式的光催化/生物降解反应器。利用该反应器对2,4,6-三氯酚(TCP)进行生物降解时,可以明显地减缓TCP对生物膜的抑制作用。与单独生物降解方法相比,这种耦合方式可以使TCP的去除速率几乎提高了1倍。动力学分析表明,单独生物方法降解TCP时,表现为自抑制的Aiba模型,而将紫外光催化与生物降解耦合对TCP进行降解时,则表现为无抑制的Monod模型。

Honeycomb ceramics used as biofilm carrier was intimately coupled with UV photocatalysis to set up integrated-photocatalyticbiological reactor for 2,4,6-trichlorophenol（TCP） degradation. Inhibition of TCP to biofilm could be obviously relieved based on the reactor during TCP biodegradation. Compared with alone biodegradation, TCP removal rate was almost increased about one time by means of the coupled mode. Analysis on TCP kinetics documented that TCP removals fitted Aiba model with itself inhibition for alone biodegradation, but it fitted for Monod model without the inhibition for the intimately coupled mode.