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http://dx.doi.org/10.5322/JESI.2013.22.9.1073

Electrochemical Treatment of COD and T-N in Wastewater from Flue Gas Desulfurization Process  

Cha, Go-Eun (Department of Environmental Engineering, Pukyong National University)
Noh, Da-Ji (Department of Environmental Engineering, Pukyong National University)
Seo, Jeong-Hyeon (Department of Environmental Engineering, Pukyong National University)
Lim, Jun-Heok (Department of Chemical Engineering, Pukyong National University)
Lee, Tae-Yoon (Department of Environmental Engineering, Pukyong National University)
Lee, Jea-Keun (Department of Environmental Engineering, Pukyong National University)
Publication Information
Journal of Environmental Science International / v.22, no.9, 2013 , pp. 1073-1078 More about this Journal
Abstract
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.
Keywords
Flue gas desulfurization process; Wastewater; Electrochemical treatment; COD; Total nitrogen;
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