Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Total assessment for phosphorus input load of public wastewater and livestock manure treatment facilities in Korea

우리나라 공공하수처리시설 및 가축분뇨공공 처리시설의 인(P) 유입부하량에 대한 총량평가

  • Kim, Weonjae (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology)
  • 김원재 (한국건설기술연구원 국토보전연구본부)
  • Received : 2018.06.24
  • Accepted : 2018.07.26
  • Published : 2018.08.15
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Abstract

The annual total phosphorus load caused by public wastewater, nightsoil and livestock manure treatment facilities in Korea has been examined macroscopically. Annual domestic average phosphorus (P) inflows through the income of phosphate rock for the last five years (2012 - 2016) were analyzed as 76,598 tons/year. As of the year 2015, the total loadings of phosphorus attributed to public wastewater treatment facilities, nightsoil treatment facilities and livestock wastewater were estimated as 30,269 tons/year, 1,909 tons/year and 18,138 tons/year, respectively. Considering the amount of phosphorus imports, the annual phosphorus load from wastewater, livestock wastewater and excretions is equivalent to 39.5%, 23.7%, 2.5% and totally 65.7%(39.5% + 23.7% + 2.5%). Therefore, the introduction of phosphorus recovery and recycling processes for the public wastewater and livestock manure treatment facilities has been found to be effective because it could reduce the import amount of phosphate rock by up to 60% or more.

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References

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