| Abstract |
| In this study, it was conduct to investigate the performance of granular sludge/granular activated carbon (GAO) system on an advanced treatment of mixed wastewater consisting of domastic wastewater, black water and landfill leachate, which have been treated by coagulation-flocculation and activated sludge system. Hydraulic conditions of granular sludge and GAC system were HAT 3-4h and EBCT 0.6-1.2. Influent COD of synthetic and real wastewater was about 600 mg/L. Based on the results, organic concentration began to decrease with operational time during a cycle. A removal efficiency of the granular sludge reactor (HRT 3h) using synthetic wastewater was COD 95% and TP 68%. When operation time increased from 30 d to 60 d for real mixed wastewater, the removal efficiencies of COD and nutrients increased 5% and 20-25%, respectively. The removal efficiency of granular sludge/GAC system in treating real mixed wastewater was 5-10% higher compared to activated sludge/GAC system. the results indicate that the granular sludge/GAC system is adequate as an alternative system to existing treatment system. |
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| Key Words |
| Mixed wastewater, advanced treatment, granular sludge, GAC |
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