고질소함유 가축폐기물의 호기발효에 있어서 탄소원의 첨가가 질소제거 효율에 미치는 영향 = Effect of Supplementation of Carbon Source on the Nitrogen Removal during Aerobic Fermentation of Animal Waste Containing High Nitrogen

다국어 초록 (Multilingual Abstract)

This study was carried out to develop a treating technique to reduce nitrogen from the organic-liquid waste with high nitrogen content (OLWHN) by aerobic fermentation. The experiment conducted to examine the effect of carbon-source additions (glucose and sodium acetate) on the rate of nitrogen removal by using a lab-scale aerobic fermentation system. Glucose and sodium acetate as organic carbon-sources were applied to OLWHN discharged from a swine farm and the ratios of BOD_5 to kjeldahl-N were controlled at 100 : 64.5, 100 : 65.5 and 100 : 90.7. The removal rates of total nitrogen, phosphonis, and BOD_5 were not influenced by adding glucose and sodium acetate. On the other hand the removal rate of ammonia-N significantly improved in sodium acetate treatment (P$lt;0.05), when OLWHN was treated in the lab-scale aerobic fermentation system. The results obtained from this study suggest that the ratio of organic carbon source to nitrogen should be used as a crucial factor in removing nitrogen from OLWHN by an aerobic fermentation system.