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DOI : , Vol.22, No.4, 57 ~ 65, 2014
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| Title |
| The Comparison of Characteristics by Anaerobic Digestion Process for Food Wastewater Treatment |
| 정종태 Jong Tai Jung , 김희영 Hee Young Kim , 최선영 Seon Yeong Choi , 김진한 Jin Han Kim |
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| Abstract |
| This study was performed to evaluate the treatability of food wastewater using Single phase and Two phase anaerobic digestion by separated on the acid with the methanogenic production. When experiments were carried out, digestion temperature was set as a mesophilic digestion which was 33.8~33.4℃(condition 1) and 37.1~38.4℃(condition 2). The period of Start-up was about 13 to 14days, and HRT(Hydraulic Retention time) was 10days. Digestion was carried out with two conditions, it was 22 days and 18 days at each condition. After 9 days in condition 1, the characteristic stage of the methane fermentation was showed by the difference of inflow and outflow of PH, however, it was not realized the stabilization because of short HRT. The experiment of Condition 2 conducted the operating temperature of with the sufficient start-up. TCOD removal efficiency of two-phase anaerobic digestion is higher than single anaerobic digestion; condition 1 was 2.6%, and condition 2 was 3.0%. With increasing temperature in the digestion, TCOD removal rate of the single anaerobic digestion was 15.4% and two-phase anaerobic digestion 15.9%, respectively. According to those results, the organic removal ratio of digestion seems to be affected by changing of digestion temperature. |
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| Key Words |
| Food wastewater, Anaerobic, Single phase anaerobic digestion, Two phase anaerobic digestion |
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