Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Effects of Gumi City Sewage Treatment Effluent in the Downstream Nutrient Matter: Comparison of Daily Loading

구미시 하수처리 방류수가 하류 하천 영양염류에 미치는 영향: 부하량 비교

  • Seong, Jin-Uk (Department of Environment Engineering, Kumoh National Institute of Technology) ;
  • Lee, Sang-Pal (Department of Environment Engineering, Kumoh National Institute of Technology) ;
  • Lee, Jae-Kyun (Department of Environment Engineering, Kumoh National Institute of Technology) ;
  • Park, Je-Chul (Department of Environment Engineering, Kumoh National Institute of Technology)
  • 성진욱 (금오공과대학교 환경공학과) ;
  • 이상팔 (금오공과대학교 환경공학과) ;
  • 이재균 (금오공과대학교 환경공학과) ;
  • 박제철 (금오공과대학교 환경공학과)
  • Received : 2013.04.25
  • Accepted : 2013.06.12
  • Published : 2013.12.31
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Abstract

This study investigated water quality of effluents and stream from the sewage treatment plants located at Gumi Complex 4, Gumi, and Wonpyeong in Gumi. Downstream region was found to increase the concentration of nutrients for sewage treatment plant effluent. Both phosphorus and nitrogen were accounted most as soluble form. In particular, the high ratio of dissolved effluent of sewage treatment plants were investigated. In the streams, Phosphorus concentration was high during rainy season and nitrogen concentration was high in the dry season. Sewage treatment plant effluent was relatively less microbial activity and nutrient concentrations were higher in the winter. TN/TP ratio was the highest in the upstream region and the lowest in the sewage treatment plant effluent. The effect of the nutrient matter from a discharge of a sewage treatment plant on rivers varied depending on the size of the river and the treatment plant. However, the influence of the concentration was greater than that of flowrate. Sewage treatment plant effluent loads phosphorus, nitrogen accounted for 8% and 6% respectively at the point N3 of the Nakdong river.

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References

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