Tetracycline is one of the most commonly used as antibiotics for the livestock industry and it is still widely used nowadays. Tetracycline and its metabolites are excreted with excrement, which is difficult to completely removed with conventional sewage treatment, therefore it is apprehended that the tetracycline-resistant bacteria occurs. In this study, the oxidant named ferrate(VI) was used to degrade the tetracycline and investigate the reaction between ferrate(VI) and tetracycline under various aqueous conditions. The highest degradation efficiency of tetracycline occurred in basic condition (pH 10.1 ± 0.1) because of the pKa values of tetracycline and ferrate(VI). The results also showed the effect of water temperature on the degradation of tetracycline was not significant. In addition, the dosage of ferrate(VI) was higher, the degradation of tetracycline and the self-degradation of ferrate(VI) also higher, finally the efficiency of ferrate(VI) was lower. The results said that the various mechanisms effects the reaction of ferrate(VI) oxidation, it required the consideration of the characteristics of the target compound for optimal degradation efficiency. Additionally, intermediate products were detected with LC/MS/MS and three degradation pathways were proposed.

ABSTRACT
1. 서 론
2. 연구방법 혹은 재료 및 실험방법
    2.1 연구재료 및 시약
    2.2 습식산화법을 이용한 ferrate(VI) 제조법
    2.3 Ferrate(VI)에 의한 tetracycline 분해 실험
    2.4 분석방법
3. 연구결과
    3.1 pH에 따른 tetracycline 분해효율
    3.2 수온에 따른 tetracycline 분해율
    3.3 Ferrate(VI) 투여량 별 tetracycline 분해율
    3.4 Ferrate(VI)에 의한 tetracycline의 분해 경로
4. 결 론
References

• 박경덕(부경대학교 지구환경시스템과학부) | Kyeong-Deok Park (Division of Earth Environmental System Science, Pukyong National University)
• 김일규(부경대학교 환경공학과) | Il-Kyu Kim (Department of Environmental Engineering, Pukyong National University) Corresponding author