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

Korean Society of Water Science and Technology (한국수처리학회)
권호 표지

Effect of Alum Addition on the Biological Treatment Performance of Attached Growth Process

Alum 주입이 부착성장 공정의 처리효율에 미치는 영향

  • Kim, Jin-Sik (Dept. of Environmental Engineering, Chungbuk University) ;
  • An, Myeong-Ki (Dept. of Environmental Engineering, Chungbuk University) ;
  • Kim, Keum-Yong (Dept. of Environmental Engineering, Chungbuk University) ;
  • Ryu, Hong-Duck (Dept. of Environmental Engineering, Chungbuk University) ;
  • Lee, Sang-Ill (Dept. of Environmental Engineering, Chungbuk University)
  • 김진식 (충북대학교 공과대학 환경공학과) ;
  • 안명기 (충북대학교 공과대학 환경공학과) ;
  • 김금용 (충북대학교 공과대학 환경공학과) ;
  • 류홍덕 (충북대학교 공과대학 환경공학과) ;
  • 이상일 (충북대학교 공과대학 환경공학과)
  • Published : 2011.02.28
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Abstract

This work was aimed to evaluate the feasibility of utilizing alum in biological filter system for the enhancement of phosphorus removal performance. The optimum alum dosage was determined by jar-tests. The best experimental ortphophosphate ($PO_4-P$) removal was observed at the $Al^{3+}/PO_4-P$ ratio of 2.0. The addition of alum caused the outstanding enhancement of phosphorus removal in the BAF system. Furthermore, TCOD removal efficiency was increased by 14 %. The utilization of alum in the BAF system didn't cause the inhibition of biological nitrification and denitrification reaction. Finally, the application of alum flocculation to biological treatment system can bring the positive effects on the removals of phosphorus and TCOD without the inhibition of biological nitrification and denitrification.

Keywords

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