Degradation of Azo Dye Reactive Black B Using an Immobilized Iron Oxide in a Batch Photo-Fluidized Bed Reactor

作者：Ho Chien Hung; Huang Yu Jen; Huang Yao Hui

来源：Environmental Engineering Science, 2010, 27(12): 1043-1048.

DOI：10.1089/ees.2010.0155

• reactive black B
• photo-fluidized bed reactor
• heterogeneous photo-Fenton process

A batch photo-fluidized bed reactor was designed, and a novel immobilized iron oxide catalyst called "B1" was utilized for the heterogeneous photo-Fenton degradation of reactive black B (RBB). This catalyst adsorbs RBB well and can markedly accelerate the degradation of RBB under ultraviolet irradiation at lambda = 365 nm. Effects of ultraviolet intensity, RBB concentration, H(2)O(2) concentration, and the amount of B1 catalyst on RBB degradation were determined. It was found that removal of RBB could be up to 98% at [B1] 5 g/L, [H(2)O(2)](0) = 63.75mg/L, [RBB] = 100mg/L, and pH = 4 in 180 min. Moreover, the most attractive quality of the B1 catalyst is that it can facilitate nearly total RBB desorption under alkali conditions (pH = 12), indicating high reusability for industrial applications.

• 出版日期2010-12