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標題: Adsorption of divalent manganese ion on manganese-coated sand
作者: Hu, P.Y.
Hsieh, Y.H.
Chen, J.C.
Chang, C.Y.
關鍵字: adsorption capacity;filtration process;ion exchange;manganese-coated;sand;pseudo-Langmuir isotherm
Project: Journal of Water Supply Research and Technology-Aqua
期刊/報告no:: Journal of Water Supply Research and Technology-Aqua, Volume 53, Issue 3, Page(s) 151-158.
Locally available manganese-coated sand, from packing and a by-product of the filtration process for water treatment plants in Taiwan, was found to be a low cost and promising adsorbent for the removal of Mn(2+) from raw water. In this work, adsorption and desorption of Mn(2+) in water have been studied by using batch techniques. The equilibrium adsorption level was determined to be a function of the solution pH, contact time and adsorbate concentration. The equilibrium adsorption capacity of Mn(2+) was obtained by using a pseudo-Langmuir isotherm. Ion exchange is probably one of the major adsorption mechanisms for binding divalent manganese ions to the coated sand. The results provide a feasible hypothesis of adsorption mechanisms. This study also supplies significant plant operation capacity data for engineering design.
ISSN: 0003-7214
Appears in Collections:環境工程學系所

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