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KMID : 1024520130220091073
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Journal of the Environmental Sciences
2013 Volume.22 No. 9 p.1073 ~ p.1078
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Electrochemical Treatment of COD and T-N in Wastewater from Flue Gas Desulfurization Process
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Cha Go-Eun
Noh Da-Ji
Seo Jeong-Hyeon
Lim Jun-Hyuk
Lee Tae-Yoon
Lee Jea-Keun
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Abstract
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This paper presents the results of the electrochemical treatment of chemical oxygen demand(COD) and total nitrogen(T-N) compounds in the wastewater generated from flue gas desulfurization process by using a lab-scale electrolyzer. With the increase in the applied current from 0.6 Ah/L to 1.2 Ah/L, the COD removal efficiency rapidly increases from 74.5% to 96%, and the T-N removal efficiency slightly increases from 37.2% to 44.9%. Therefore, it is expected that an electrochemical treatment technique will be able to decrease the amount of chemicals used for reducing the COD and T-N in wastewater of the desulfurization process compared to the conventional chemical treatment technique.
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KEYWORD
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Flue gas desulfurization process, Wastewater, Electrochemical treatment, COD, Total nitrogen
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