Improvement of Operating Efficiency on Advanced Wastewater Plant Using Statistical Approach

고도처리 효율 향상을 위한 통계적 접근

  • 문경숙 (대구광역시 환경시설공단) ;
  • 민경섭 (대구광역시 환경시설공단) ;
  • 김승민 (대구광역시 환경시설공단) ;
  • 이찬형 (대구광역시 상수도사업본부)
  • Published : 2008.04.30


Statistical analysis technique was applied to operating parameters and removal efficiency data sets obtained from advanced wastewater treatment plant during 1 year. Through factor analysis three factors derived varimax rotation were selected each plant. Three components explained 96%, 87% of the total variance of the process, respectively. The components on $A_2O$ Plant were identified in the following order : 1) Shortening the SRT during high-flow period, 2) Keeping biomass high on winter 3) factor was related to DO. On DNR plant, we defined them as follows: factor 1, Prolonged the SRT during high-flow period; factor 2 was related to sludge return; factor 3, Influent BOD during low-DO period. This technique was believed to assist operators in identifying priorities to improve operation efficiency.


Advanced wastewater treatment plant;Operating parameters;Statistical analysis;Factor analysis


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