Comparative study on the removal technologies of 2-methylisoborneol (MIB) in drinking water

Article type: Research Article

Authors: LIANG, Cun-zhen^; | WANG, Dong-sheng | GE, Xiao-peng | YANG, Min | SUN, Wei

Affiliations: State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Beijing 100085, China | Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China

Note: [] Corresponding author. E-mail: [email protected]

Abstract: Removal of 2-methylisoborneol (MIB) in drinking water by ozone, powdered activated carbon (PAC), potassium permanganate and potassium ferrate was investigated. The adsorption kinetics of MIB by both wood-based and coat-based PACs show that main removal of MIB occurs within contact time of 1 h. Compared with the wood-based PAC, the coat-based PAC evidently improved the removal efficiency of MIB. The removal percentage of trace MIB at any given time for a particular carbon dosage was irrelative to the initial concentration of MIB. A series of experiments were performed to determine the effect of pH on the ozonation of MIB. The results show that pH has a significant effect on the ozonation of MIB. It is conclusive that potassium permanganate and potassium ferrate are ineffective in removing the MIB in drinking water.

Keywords: odor, MIB, ozonation, powdered activated carbon, potassium permanganate, potassium ferrate

Journal: Journal of Environmental Sciences, vol. 18, no. 1, pp. 47-51, 2006