The purpose of this study was to investigate the created liquid post-acid fermentating of usability of denitrification as exterior carbon sources of food waste. Two days after starting the experiments, SCOD_(Cr), SBOD_5, STOC and VFAs was decreased and increased slowly, and then increased fast. And after showing the highest density, it was tended to decreased fast. When highest density in the acquisition of VFAs, R₁ was 9,560㎎/l, R₂ was 10,990㎎/l, R₃ was 12,000㎎/l. So R₃ only cut was highest generation. At they time of SBOD_5, with the highest density, at SROD_5 : ST-N ratio, R₁ was 315:1, R₂ was 343:1, R₃ was 372:1. All of these wore high SBOD_5 : ST-N ratios. And R₃ was the highest. After studying SBOD_s : ST-N ratio and SBOD_s/SCOD_(Cr) ratio, as a carbon source of biological denitrification it was a profitable composition ratio. |
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