| Title |
Evaluation of Advanced Oxidation Processes by Catalytic Ozonation with Mn-doped GAC |
| Authors |
송승주 ( Song Seung Ju ) ; 오병수 ( O Byeong Su ) ; 나승진 ( Na Seung Jin ) ; 이응택 ( Lee Eung Taeg ) ; 강준원 ( Kang Jun Won ) |
| Keywords |
Catalytic Ozonation; Mn-doped GAC; Ozone; Catalysts; Oxalic Acid |
| Abstract |
The purpose of this study was to investigate the heterogeneous catalytic ozonation of oxalic acid by manganese (Mn) doped-granular activated carbon (GAC). In order to observe the effect of the amount of Mn doped on GAC, catalysts were manufactured by varying the impregnated Mn concentration. In this paper, the following had labeled all sorts kinds of Mn-doped GAC were labeled with suitable names according to the amount (mM) of the concentration of dipping solution: They were each named as `Mn20`, `Mn50`, `Mn100` and `Mn200`. These experiments were performed in a batch reactor (0.5 L) and a semi-batch reactor (1L) and Mn-free GAC was used as a blank catalyst. The ozone decay properties of each manufactured catalyst were firstly investigated to find out the reactivity between the aqueous ozone and the catalysts. Oxalic acid removal by catalytic ozonation was then performed to demonstrate the oxidative efficiencies of each catalyst. |