ENVR 165 |
| A lab-scale expanded granular sludge bed reactor was used to treat rice wine wastewater inoculated with the anaerobic granular sludge obtained from a full-scale up-flow anaerobic sludge blanket reactor treating brewery wastewater under mesophilic conditions (35±2°C). Due to the better characteristics of the granular inoculum, the reactor was started up at the higher organic loading rate of 3.1 kgCOD•m-3•d-1 and was operated to increase the organic loading rate progressively by varying the hydraulic retention time and the concentration of the feed and reached 20 kgCOD•m-3•d-1 on days 57-73; the total COD removal efficiency averaged from 72~95%. It made the expanded granular sludge bed reactor operate stably when the pH and alkalinity of the system were kept in the optimum range 7.6~8.3 and 2,000~5,000 mg CaCO3/L, respectively. |
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General Papers
6:00 PM-8:00 PM, Wednesday, August 22, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Environmental Chemistry |