Affiliation: | a School of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, Republic of Korea;b Department of Environmental Engineering, Sunchon National University, Sunchon 540-742, Republic of Korea;c Division of Civil and Environmental Engineering, Chonnam National University, Yeosu 550-749, Republic of Korea;d Department of Environmental Education, Mokpo National University, #61 Dorim-ri, Cheonggye-myeon, Muan 534-729, Jeonnam, Republic of Korea |