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.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 탈황폐수 시료의 성상
  2.2. NaOCl 약품주입에 따른 탈황폐수 중의 COD 제거
  2.3. 전해장치 및 운전
  2.4. 분석방법
 3. 결과 및 고찰
  3.1. 약품주입에 의한 탈황폐수 내 COD 저감특성
  3.2. 전해처리법에 의한 탈황폐수 내 COD 저감특성
  3.3. 전해처리법에서 공급전류량에 따른 COD 및 T-N저감효율
 4. 결 론
 참 고 문 헌

• 차고은(부경대학교 환경공학과) | Go-Eun Cha (Department of Environmental Engineering, Pukyong National University)
• 노다지(부경대학교 환경공학과) | Da-Ji Noh (Department of Environmental Engineering, Pukyong National University)
• 서정현(부경대학교 환경공학과) | Jeong-Hyeon Seo (Department of Environmental Engineering, Pukyong National University)
• 이태윤(부경대학교 환경공학과) | Tae-Yoon Lee (Department of Environmental Engineering, Pukyong National University)
• 이제근(부경대학교 환경공학과) | Jea-Keun Lee (Department of Environmental Engineering, Pukyong National University) Corresponding author
• 임준혁(부경대학교 화학공학과) | Jun-Heok Lim (Department of Chemical Engineering, Pukyong National University)