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http://dx.doi.org/10.17820/eri.2018.5.1.019

Behavior Characteristics of Fluoride with pH, Ion Type and Concentration, and Sediment Characteristics in River  

LEE, Dong Min (Department of Applied Environmental Science, Kyung Hee University)
Joo, Kwang Jin (Department of Applied Environmental Science, Kyung Hee University)
Choi, ISong (Department of Environmental Science and Engineering, Kyung Hee University)
Chang, Kwang Hyeon (Department of Environmental Science and Engineering, Kyung Hee University)
Oh, Jong Min (Department of Environmental Science and Engineering, Kyung Hee University)
Publication Information
Ecology and Resilient Infrastructure / v.5, no.1, 2018 , pp. 19-24 More about this Journal
Abstract
Water quality is affected by the pollutants flowing into rivers since the interaction between water bodies and sediments in various environmental conditions. Especially, accumulation of sediments increases in the stagnant water areas due to a relative long hydrological retention time in the water bodies. Therefore, it is an important factor of water quality to understand characterization of the material behavior in water bodies and sediments. In this study, the objective of the conditional experiments was small and medium sized streams located in Gyeonggi-do. To estimate how the changes of fluoride behavior, depending on the pH, ion type, concentration, and clay contents. The pH results showed a trend that adsorption amount of fluorine decreased and the dissolution of fluorine increased following by pH increasing. The concentration and type of ions results showed that $Cl^-$ and $SO{_4}^{2-}$ ions had no significant effect on the adsorption ability of fluorine, the amount of dissolution was increased because $OH^-$ ion had active competition with fluorine in the reaction. The ingredient of sediment results showed that the amounts of fluoride adsorption and dissolution were reduced in samples, which contain relatively large amounts of Silt and Clay components. This means that the environmental conditions of water bodies greatly affect the adsorption and dissolution of fluoride in the sediments, so that proper management of fluoride in the sediments must precede an understanding of the environmental conditions of the water bodies.
Keywords
Behavior of fluoride; Ion concentration and type; pH; River sediment; Sediment Characteristics; Stagnant waters;
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Times Cited By KSCI : 1  (Citation Analysis)
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