Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
권호 표지

Treatment of Seafood Wastewater Using AO$_2$ System with PU-AC Media

담체가 첨가된 AO$_2$공법을 이용한 수산물 가공폐수의 처리

  • Lee, Soon (Department of Environmental Science, Keimyung University) ;
  • Park, Sang-Won (Department of Environmental Science, Keimyung University)
  • 이순 (계명대학교 환경과학과) ;
  • 박상원 (계명대학교 환경과학과)
  • Published : 2008.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Feasibility of simultaneous removal of organic matter, nitrogen and phosphorus was evaluated by applying AO$_2$ system to treat wastewater from a seafood processing plant. Treatability test was conducted by incorporating activated sludge from municipal sewage treatment plant with PU-AC media. Inflow concentrations of COD, TN, and TP were 198$\sim$1,240 mg/L, 75$\sim$577.4 mg/L, and 2.2$\sim$53.5 mg/L, respectively. Average removal efficiencies and outflow concentration of COD, TN, and TP were 86.5%, 65.7 mg/L; 81.4%, 53.1 mg/L; and 80.6% 4.07 mg/L, respectively. Stable operation was possible by increasing organic matter, nitrogen, and phosphorus loading rate to seafood wastewater treatment system composed of anaerobic and aerobic reactors. Used PU-AC media was proved to be biodegradable in this AO$_2$ system by maintaining high biomass concentration in the PU-AC media.

수산물 가공폐수를 AO$_2$공법에 적용하여 유기물, 질소, 인의 동시제거 가능성을 평가 하였다. 처리도 실험은 도시하수처리장에서 가져온 활성슬러지를 담체에 2주 이상 부착시킨 후 반응조 부피 25%로 충진하여 실험을 행하였다. 유입수 농도는 실험기간 동안 COD : 198 - 1,240 mg/L, TN : 75 - 577.4 mg/L, TP : 2.2 - 53.5 mg/L였다. 운전기간동안 평균 제거효율은 COD : 86.5%(65.7 mg/L), TN : 81.4%(53.1 mg/L), TP : 80.6%(4.07 mg/L)로 나타났다. Anaerobic조와 Aerobic조로 구성된 시스템에 유기물 및 영양염류 부하율이 증가되어도 비교적 안정된 형태의 운전이 가능하였다. 사용된 PU-AC 메디아는 높은 MLSS량을 보유하여 AO$_2$ 시스템 내에서 생물학적 처리율을 높일 수 있었던 것으로 사료된다.

Keywords

References

  1. Balslev, O. P., Lynggaard, J. A., and Nickelsen, C., "Pilot Scale Experiments on Anaerobic Treatment of Wastewater from a Fish Processing Industry," Water Sci. Technol., 22, 463-474(1990). https://doi.org/10.2166/wst.1990.0170
  2. 백병천, 신함식, "연속회분식 반응기를 이용한 수산물 가 공폐수 처리," 대한상하수도학회지, 1, 18-26(1994).
  3. 윤태경, 이강춘, 문병현, 이택순, 구현서, "제올라이트를 첨 가한 간헐폭기 활성슬러지 시스템을 이용한 수산물 가공 폐수의 처리," 공업화학, 14(4), 410-414(2001).
  4. Shieh, W. K. and Keenan, J. D., "Fludized Bed Biofilm Reactor for Wastewater Treatment," Advances in Biochemical Engineering and Biotechnology, 33, 131(1986).
  5. Jang, A., Kim H. S., and Kim, I. S., "Effect of Nitrate and Nitrite Load on Denitrification Reaction in Anoxic Biofilm Reactor," J. of KSEE, 22(9), 1617-1625(2000).
  6. Hong, W. Z., Mavinic, D. S., Oldham, W. K., and Koch, F. A., "Controlling Factors Simultaneous Nitrification and Denitrification in a Two stage Intermittent Aeration Process Treating Domestic Sewage," Water Res., 33(4), 961-970(1999). https://doi.org/10.1016/S0043-1354(98)00292-9