Eco-friendly remediation and odor control of a contaminated urban stream using beneficial microorganisms

생물증강법을 이용한 도심 오염 소하천의 친환경적 수질정화 및 악취제어

  • Chang, Jae-Soo (Department Environmental Engineering, Korea Maritime and Ocean University) ;
  • Song, Jikyung (Department Environmental Engineering, Korea Maritime and Ocean University) ;
  • Kim, In-Soo (Department Environmental Engineering, Korea Maritime and Ocean University) ;
  • Yoo, Jangyeon (Department Convergence Study on the Ocean Science and Technology, Korea Institute of Ocean Science and Technology) ;
  • Koh, Sung-Cheol (Department Environmental Engineering, Korea Maritime and Ocean University)
  • 장재수 (한국해양대학교 환경공학과) ;
  • 송지경 (한국해양대학교 환경공학과) ;
  • 김인수 (한국해양대학교 환경공학과) ;
  • 유장연 (한국해양과학기술전문대학원 해양과학기술융합학과) ;
  • 고성철 (한국해양대학교 환경공학과)
  • Received : 2015.12.07
  • Accepted : 2015.12.24
  • Published : 2015.12.31


Dongchun, one of the representative streams in urban area, is a downstream that is connected to Hogyechun, Bujeonchun, Jeonpochun, Danggamchun, and Gayachun as its upstream. Hogyechun has been mostly covered with concrete structures for decades, causing sewage pollution from the upstream, overflow of the downstream region and other serious pollution that gave rise to many civil complaints from the residents nearby. In this study, we analyzed 3 stations, including control station for water quality and malodor changes of Hogyechun after applying the microbial augmentation (BM-2) for a few months including the rainy season. Amounts (g/h) of DO in the middle site (Middle) and the downstream site (Borim) increased by 1.7 times compared with the upstream site (Chuhae) after augmentation for about 2 months. Amounts (g/h) of COD and $NO_3{^-}N$ decreased by 2 and 1.7 times, respectively, in the middle and downstream sites while SS increased by 7.5 and 22 times in the middle and downstream sites, respectively. Moreover, odor removal efficiencies at the middle and downstream sites were 65% and 19%, respectively, indicating the microbial activity in reduction of malodor in the polluted stream. The dominant microbial species of the sampling sites were Hydrogenophaga caeni, Sphaerotilus natans, Acidovorax radicis, Acidovorax delafieldii, and Cloacibacterium rupense. Densities of the two species Sphaerotilus natans and Acidovorax delafieldii were significantly increased in the middle site after augmentation which possessed potential odor removal and denitrification activity, respectively. Potential pathogens (e.g., Arcobacter cryaerophilus) were also removed from the middle site after the implementation.


beneficial microorganisms;contaminated stream;odor control;stream remediation;urban stream


Supported by : 부산녹색환경지원센터, 한국해양대학교


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