| Title |
Adsorption Characteristics of Arsenic on Composite Adsorbents using Recycled Aluminium Oxides and TiO2 |
| Authors |
민경철 ( Kyung Chul Min ) ; 이승목 ( Seung Mok Lee ) ; 김근한 ( Keun Han Kim ) ; 이희용 ( Hee Yong Lee ) ; 양재규 ( Jae Kyu Yang ) ; 박연종 ( Youn Jong Park ) |
| Keywords |
Adsorption; Aluminum oxides; Arsenic; Composite adsorbent; TiO2 |
| Abstract |
The objective of this study was to evaluate the removal efficiency of arsenite and arsenate using composite adsorbents with various mixing ratio of recycled aluminum oxides and TiO2. From batch adsorption experiments, while the removal of As(III) was almost same with 4 different composite samples in the entire pH range, the removal of As(V) was substantially increased as the weight ratio of TiO2 in composite samples reduced and showed anionic adsorption characteristics. Both adsorption of As (III) and As(V) on composite samples followed pseudo-second-order adsorption equation and C-3 showed faster reaction rate for the removal of arsenic. From the adsorption isotherm experiments, Langmuir isotherm explained well and the maximum adsorption capacities of arsenic were obtained with C-1. |