초록 |
In this study, a lab-scale co-digestion process was operated to observe the parameter changes according to the increase of organic loading rate using different dilution ratios of distilled water and food wastewater(1/3 [Run I], 2/3 [Run II], raw food wastewater [Run III]). The results indicated that co-digestion process maintained quite stable and constant pH during entire experiments. With regard to VS removal, higher removal was observed in the combined process and the removal efficiency was 52.24% (Run I), 66.59% (Run II) and 72.53 (Run III), respectively. In addition, combined process has about 1.6-fold higher methane production rate and significantly higher methane yield than that of single anaerobic digestion process. |