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Enhancement of Phenanthrene Sorption Rate on Natural Manganese Oxide Using the Oxidative Coupling Reaction of Phenanthrene  

Jeon Sun-Young (Department of Water and Wastewater Treatment, Shinwoo Engineering)
Park Jae-Woo (Department of Environmental Engineering, Hanyang University)
Shin Won-Sik (Department of Environmental Engineering, Kyungpook National University)
Ko Seok-Oh (Department of Civil Engineering, Environmental Research Center, Kyunghee University)
Publication Information
Journal of Soil and Groundwater Environment / v.10, no.5, 2005 , pp. 45-51 More about this Journal
Abstract
The sorption/desorption characteristics of phenanthrene on the natural manganese oxide (NMD) were investigated in the presence of phenolic compounds. 4-chlorophenol (4-CP) was effectively oxidized by NMD catalyzed reaction and transformed into humic-like macromolecular compound through inter-or cross-coupling reaction between byproducts. As 4-CP was degraded with time, sorbed amount of phenanthrene on NMD was significantly increased, resulting from the formation of oxidative coupling products. These results imply that NMD can be used for simultaneous treatment of phenolic contaminants and polycyclic aromatic hydrocarbons (PAHs) in soils, sediments, or water. Also, sorbed phenanthrene on NMD in the presence of 4-CP showed high degree of desorption resistance, indicating that sequestration process of phenanthrene was ongoing with time.
Keywords
Manganese oxide; Chlorophenol; Polycyclic aromatic hydrocarbon; Sorption; Desorption;
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