Browse > Article

SND in the Fixed Media Tank of Membrane-BNR Process Treating Low C/N Wastewater  

Jeong, Yong-Chul (Department of Environmental Engineering, Kyungpook National University)
Lee, Jung-Yeol (Department of Environmental Engineering, Kyungpook National University)
Min, Kyung-Sok (Department of Environmental Engineering, Kyungpook National University)
Publication Information
Journal of Korean Society on Water Environment / v.24, no.3, 2008 , pp. 328-332 More about this Journal
Abstract
This research was about T-N removal efficiency of oxic reactor in which fixed media submerged from Membrane BNR(An+Ax+Ox) process. This experiment was implemented by using fixed media and changing DO concentration in the oxic reactor. Nitrification efficiencies of all modes were more than 98%. When no media was in the oxic reactor, T-N removal efficiency was only 47.4%, while it were shown from 60.3% to 67.4% with packed media, which indicated improved efficiency of 27~42%. The removal efficiencies of TCOD and BOD were more than 89%, 98% respectively, which could satisfy the guideline of advanced sewage reclamation by Department of Environment. When DO concentration in the packed oxic-media tank was 0.5~1.0 mg/L, T-N removal efficiency was low, which resulted from insufficient nitrification in the oxic reactor. Therefore, DO concentration of bulk solution needs to be kept more than 1.0 mg/L to induce higher nitrification efficiency in the reactor in which media was submerged. Also, the selection of DO concentration is important to prevent media from being clogged.
Keywords
Fixed-media; Membrane-BNR; Membrane separation; Simultananeous nitrification/denitrification;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 이민경(2002). 폐타이어 담체가 충진된 $A_2/O$공정에서의 질 산화 온도영향. 석사학위논문, 경북대학교
2 환경부(2006). 물순환이용체계개선에 관한 연구
3 APHA (1998). Standard Methods for the Examination of Water and Wastewater. Washington, DC, USA
4 U.S. EPA (1993). Manual Nirtogen Control. EPA/625/R93/010
5 조병락(1997). 활성슬러지 포기탱크의 미생물, 동화기술
6 전병희(2005). 다공성 담체를 이용한 유동상 및 하이브리드 반응기에서의 질소제거. 대한환경공학회지, 27(5), pp. 542-548
7 이병대(2005). Step-feed 공정에서의 생물학적 질소제거 Modeling. 한국유화학회지, 22(1), pp. 62-70
8 Rittmann, B. E. and McCarty, P. L. (2002). Environmental Biotechnology, McGraw-Hill Korea, Seoul
9 김용환, 조재현, 김무현, 이용우(1997). 생물막 담체를 이용 한 질산화 반응특성 연구. 대한환경공학회지, 19(3), pp. 415-424
10 Shin, H. S. and Park, H. S. (1991). Enhanced nutrient removal in porous biomass carrier sequencing batch reactor (PBCSBR). Water Sci. Technol., 23, pp. 719-728
11 한혜정, 윤주환(2006). 유동상 생물막 SBBR공정에서 SOUR 을 이용한 하수내 질소 ･인에 관한 제거특성 연구. 2006 년 공동춘계학술발표회 논문집, 한국물환경학회.대한상하수도학회, pp. 213-217