공공하수종말처리시설의 성능분석 및 효율개선을 위한 기술진단기법 개선

The environmental management corporation regularly performs technical diagnosis at live-year intervals according to the sewerage act of korea. However this is based on a simple technique and does not contribute to the improvement of the processes of public sewage treatment plant. This study was intended to public sewage treatment plants to analyze and supplement the existing technical diagnosis technique in order to derive improvement factors for each process and thereby contribute to the improvement of the efficiency of the entire process. In the aeration tank sector, the problems of dead spaces and high DO in the tank had to be solved by improving the process. In addition, considering the actual media of microorganisms attached to the operating SRT is sufficient to achieve the nitrification process, somewhat longer reduces the phosphorus removal process. So needs to be improved, such as sludge return control and SRT reduction operating. Effluent quality was analyzed and COD fraction was tested to identify any necessary additional process to be introduced. The test revealed a high colloidal COD. Test results showed that the introduction of the filtering process would add remove. According to the GPS-X modeling, the simulation revealed that the internal recycling of 1.49Q and sludge return of 0.47Q were the optimal operating parameters.