The aim of this paper is to compare the characteristics of the T-P removal from synthesized municipal wastewater by electro-coagulation using cylindrical Al and Fe electrode as anode. For this purpose, a concentric circle type electrolysis reactor was used and the operating conditions for T-P removal from synthesized wastewater are as follows; potential 10 V, electrolyte 0.03% NaCl, initial T-P concentration 1.0 ~ 6.0 mg/L and flow rate 1.0 ~ 5.0 L/min. From the experimental results, T-P concentration of treated wastewater was decreased to less than 0.2 mg/L enough to discharge standard and Al electrode showed performance than Fe electrode for T-P removal by electro-coagulation. Optimal conditions for T-P removal to less than 0.15 mg/L which is 75% of discharge standard for large scale municipal wastewater plant (capacity higher than 500 m3/day) were obtained as follows; flow rate 2.503 L/min, and 2.337 L/min, HRT 1.059 min, 1.134 min, for Al and Fe electrode, respectively. Consumed mass of Al and Fe were of 3.76 times and 8.90 times respectively, were obtained to removed T-P at optimal conditions with potential 10 V, and 0.03% NaCl as electrolyte.

Abstract
 I. 서 론
 II. 이론적 고찰
 III. 실험
  1. 조제폐수 및 실험장치
  2. 실험방법
 IV. 결과 및 고찰
  1. 유량에 따른 인 제거특성 비교
  2. 소비되는 금속전극의 양
  3. 소비되는 에너지의 양
  4. P 제거에 소비되는 Al과 Fe 금속의 양
  5. 최적조건의 산정
 V. 결 론
 References

• 윤용수(단국대학교 화학공학과) | Yong Soo Yoon Corresponding author
• 김사동((주)디씨테크) | Sa Dong Kim