Journal of Korean Society of Water Science and Technology (한국수처리학회지)

Korean Society of Water Science and Technology (한국수처리학회)
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A Study on the Comparison of Phosphorous Removal Efficiency with C : N : P Ratio for Bench-scales STP

Bench-scale 선박용 STP 장치에서 C : N : P 비율에 따른 인의 처리효율 비교에 대한 연구

  • Choi, Young-Ik (Department of Environmental Engineering, Dong-A University) ;
  • Ji, Hyeon-Jo (Department of Environmental Engineering, Dong-A University) ;
  • Shin, Dae-Yeol (Department of Environmental Engineering, Dong-A University) ;
  • Mansoor, Sana (Department of Environmental Engineering, Dong-A University) ;
  • Lee, Seong-Chul (Department of Environmental Engineering, Dong-A University) ;
  • Jeong, Jin-Hee (Department of Environmental Engineering, Dong-A University)
  • Received : 2018.03.12
  • Accepted : 2018.11.27
  • Published : 2018.12.31
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Abstract

Water pollution is drastically increasing day by day, because of the enhancement in use of livestock, urban sewage detergents and fertilizers. Moreover increase in concentration of phosphorous and nitrogen contained in sewage, leads to green tide problem in the rivers and causes marine pollution. For this problem to solve, several technologies are being researched and developed. Among them, this experiment is a study on Bench-scale STP based on internationally certified sewage treatment equipment by MEPC. 227(64) of IMO. The purpose of this study is to compare the biological treatment efficiency of phosphorus of Bench-scale STP. The ratio of C : N : P was set to 10 : 5 : 3 and 10 : 3 : 1 as the operating conditions. And the operation cycle was set to anoxic(mixed) 70 min - aeration 50 min (70-50), anoxic(mixed) 90 min - aeration 60 min (90-60). As a result, the phosphorous treatment efficiency was 88% at average, and the treatment efficiency was steady at 90-60 better than 70-50. The efficiency of the bench-scale STP has been verified through this experiment and additional experiments are required to derive the optimal operating conditions.

Keywords

Acknowledgement

Supported by : 한국연구재단

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