• Title/Summary/Keyword: Sewage treatment works

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A study on Assessment Methodology for Best Treatment Technologies at Public Sewage Treatment Works in Korea (하수처리시설에서 최적처리기술 평가 방법론 고찰 - 미국과 유럽의 사례를 중심으로 -)

  • Jeong, Dong-Hwan;Cho, Yangseok;Choi, In-Cheol;Ahn, Kyunghee;Chung, Hyen-Mi;Kwon, Ohsang
    • Journal of Environmental Impact Assessment
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    • v.24 no.4
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    • pp.386-395
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    • 2015

  • In order to assess sewage treatment technology necessary to achieve water quality criteria in the watershed and to ensure best treatment technology is applied in building and expanding PSTWs when establishing the Watershed Sewer System Maintenance Plan, it is necessary to develop assessment guidelines to determinate the best treatment technologies applicable to the public sewage treatment works(PSTWs). Sewage treatment technologies such as anaerobic-anoxic-aerobic treatment process are employed at PSTWs, and treatment efficiency varies due to many factors such as how the PSTWs are operated. Therefore, analyzing assessment guideline of best available technology(BAT) using currently in USA and EU, this study presents assessment parameters for the assessment guidelines to be used in determining the best treatment technologies applicable to PSTWs. We have a plan to implement pilot assessment in preparation for the final assessment guidelines based on the results of professionals survey and to determine weighted factors and assessment parameters using analytic hierarchy process (AHP).

  • https://doi.org/10.14249/eia.2015.24.4.386 인용 PDF KSCI

Characteristics of TOC in effluent discharge from public sewage treatment works in korea (우리나라 공공하수처리시설의 TOC 배출특성 및 관리방안 연구)

  • Jeong, Dong-Hwan;Choi, In-Cheol;Cho, Yangseok;Ahn, Kyunghee;Chung, Hyen-Mi;Kwon, Ohsang;Park, Hoowon;Shin, Hyunsang;Hur, Jin
    • Journal of Korean Society of Water and Wastewater
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    • v.28 no.6
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    • pp.657-668
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    • 2014

  • Under Korea's Enforcement Decree of the Framework Act on Environmental Policy amended in 2013, total organic carbon (TOC) is newly added as water quality parameter to assess organic pollution in water and aquatic ecosystem. To meet the TOC requirement and improve quality of effluent discharged into public watershed, it is also necessary to develop standards for TOC in effluent from public sewage treatment works (PSTWs). In this study, we reviewed the characteristics and removal efficiency of TOC in influent and effluent of PSTWs. The study found that phosphorus treatment process removed not only soluble phosphorus but also a portion of TOC remaining after the secondary treatment process. TOC concentration in effluent from PSTWs operated in tandem with industrial wastewater treatment work was higher due to influx of insoluble substances from the industrial wastewater treatment work. In order to lay a foundation for the management of TOC from PSTWs, it is necessary to carry out research on TOC from different perspectives. For example, studies on the generation mechanism of TOC and the impact of TOC on drinking water resources, assessment of effluent qualities through monitoring, and development of measures to control TOC for the preservation of aquatic ecosystem are needed.

  • https://doi.org/10.11001/jksww.2014.28.6.657 인용 PDF KSCI