%0 Journal Article %A V. Tanboonchuy and J.C. Hsu and N. Grisdanurak and C.H. Liao %D 2010 %J International Journal of Chemical and Molecular Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 41, 2010 %T Arsenate Removal by Nano Zero-valent Iron in the Gas Bubbling System %U https://publications.waset.org/pdf/12255 %V 41 %X This study focused on arsenate removal by nano zero-valent iron (NZVI) in the gas-bubbled aqueous solution. It appears that solution acidified by H2SO4 is far more favorable than by CO2-bubbled acidification. In addition, as dissolved oxygen was stripped out of solution by N2 gas bubbling, the arsenate removal dropped significantly. To take advantages of common practice of carbonation and oxic condition, pretreatment of CO2 and air bubbling in sequence are recommended for a better removal of arsenate. %P 285 - 287