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Unformatted text preview: 6 1 46.15 15.76 0.69 3 58.99 15.74 0.69 KOLON E&C CO.,LTD 5. Additional Results (2) 5.2.1. Introduction Specification of Plant Contents Conditions Plant for Retrofitting D waste treatment plant in Daejeon, Korea Capacity 150,000 m3/d HRT Anaerobic Basin Anoxic Basin Aerobic Basin 1h 2h 3h Flow line 12 flows & 4 Secondary Clarifier / 1 stage Secondary Clarifier Bioreactors Influent Distribution Gate Internal Recycle (1.0~1.5 Q) Recycle (1 Q) Influent Effluent Anaerobic Basin Anoxic Basin Aerobic Basin Return Sludge (0.4~0.6 Q) Sludge Waste [ Schematic Diagram of Plant after Retrofitting ] KOLON E&C CO.,LTD 5. Additional Results (2) 5.2.2. Operation and design conditions Operational Conditions of the D Plant Contents Conditions Operation Period 2006. 8. 1 ~ 2006.12.13 Influent Flow Flow 139,955 m3/d Distribution Ratio (Anaerobic : Anoxic) 7:3, 8:2, 9:1 Internal Recycle 1.0 ~ 1.2 Q Return Sludge 0.3 ~ 0.4 Q Design Influent & Effluent Contents BOD5 CODMn SS T-N T-P Influent (mg/L) 163.0 137.0 156.0 33.50 5.20 Effluent (mg/L) 10.0 15.0 10.0 15.00 2.00 Removal Efficiency (%) Efficiency (%) 93.9 89.1 93.6 55.2 61.5 KOLON E&C CO.,LTD 5. Additional Results (2) 5.2.3. Results of operation Comparison of Results before and after Retrofitting Influent (mg/L) Contents Effluent (mg/L) Removal Efficiency(%) After Before After Before After BOD 109.2 145.7 9.8 2.6 89.2 98.2 COD 108.6 114.3 11.5 9.2 87.2 92.0 SS 203.5 223.4 10.0 2.6 93.2 98.8 T -N 32.1 37.8 18.4 7.5 40.1 80.1 T-P 5.6 5.7 1.6 0.9 70.7 84.6 Removal Efficiency (%) Before 120 Before After 100 80 60 40 20 0 BOD COD SS T-N T-P KOLON E&C CO.,LTD 5. Additional Results (2) 5.2.4. Conditions of simulation Operational Conditions Contents Conditions Operation Period Influent Input Values 2006. 8. 1 ~ 2006.12.13 7.1 mg/L 92.2 mg/L mg/L 111.1 mg/L 26.78 mg/L 1.66 mg/L T-P Sludge Waste 0.2 mg/L mg/L NO3-N 35 % (13,125 m3/d) DO T-N Return Sludge 21.7 ℃ SS 120% ( 45,000 m3/d) Temperature BOD Internal Recycle 37,500 m3/d (150,000/4) pH 8:2 8:2 Input Value influent Flow Distribution Ratio Ratio (Anaerobic : Anoxic) Contents 3.87mg/L m3/d) 0.67 % (250 [NPR process configuration in D Wastewater Treatment Plant ] KOLON E&C CO.,LTD 5. Additional Results (2) 5.2.5. Results of simulation Measured and Simulated Effluent Levels Measuring Contents Simulation Conc. (mg/L) Removal Efficiency (%) Conc. (mg/L) Removal Efficiency (%) BOD 2.6 97.2 3.4 96.3 SS 2.6 97.7 8.4 92.5 T-N 7.50 72.0 10.03 62.5 T-P 0.91 76.7 1.37 64.6 10 Removal Efficiency (%) Concentration (mg/L) 12 M easuring S imulatio n 8 6 4 2 0 BO D SS T-N T-P 100 M easuring S imulatio n 80 60 40 20 0 BO D SS T-N T-P KOLON E&C CO.,LTD...
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This note was uploaded on 07/22/2013 for the course CS/BUSINES 2333 taught by Professor Ddongphung during the Spring '12 term at Yonsei University.

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