Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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A Study on the Evaluation for Operations of Public Sewage Treatment Plants Using Statistics Technique

통계기법을 이용한 공공하수처리시설의 운영실태 평가방법 연구

  • 최인철 (국립환경과학원) ;
  • 안태웅 (성균관대학교 무배출형환경설비지원센터(ZEC)) ;
  • 유순주 (국립환경과학원) ;
  • 정현미 (국립환경과학원) ;
  • 권오상 (국립환경과학원) ;
  • 김원기 (성균관대학교 무배출형환경설비지원센터(ZEC)) ;
  • 염익태 (성균관대학교 무배출형환경설비지원센터(ZEC)) ;
  • 손대희 (성균관대학교 무배출형환경설비지원센터(ZEC))
  • Received : 2014.05.17
  • Accepted : 2014.09.16
  • Published : 2014.09.30
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Abstract

Korea has been trying to manage water quality of rivers and lakes in many ways. Ministry of Environment is making continuous efforts of operation control improvement such as strengthening effluent standards in sewage treatment plants and expanding Tele-Monitoring System (TMS). However, evaluation method for operations of sewage treatment plants and establishment system of effluent standards are inadequate. The objective of this study is to evaluate for operations of sewage treatment plants using statistics technique such as frequency analysis, percentile, normal distribution analysis. We used the effluent data (BOD, COD, SS) collected at 299 plants in 2012. The values were very low by comparison with standards. The Data followed a normal distribution. We think that distribution characteristics are closely related with effluent standards, especially T-P and BOD. Statistics technique attempted in this study can be used to evaluate for operations of sewage treatment plants and assess the appropriateness of effluent standards based on TBEL(Technology-based effluent limitation). And, this technique can be used to figure out the overall level of plants, the status of each plant and the favorable treatment process for each item (BOD, COD etc.). Data acquired through this method can be used to improve facilities and operation techniques and decide on a sewerage policy.

Keywords

References

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