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RISS 인기검색어
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- 저자 : 정상현(S . H . Chong) (검색결과 2 건)
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호기발효시스템에 있어서 고질소 함유 가축폐기물의 부하율이 질소제거효율에 미치는 영향
정상현(S . H . Chong),이상락(S . R . Lee),조남기(N . K . Cho),맹원재(W . J . Maeng) 한국축산학회 1996 한국축산학회지 Vol.38 No.3
This study was conducted to develop a treating technique to get rid of nitrogen from the animal waste containing high nitrogen by aerobic fermentation. The effect of loading rate on the removal efficiency of nitrogen was examined by using both a lab- and a pilot-scale aerobic fermentation system. Anaerobic fermentation residue of swine waste achieved from a pilot-scale anaerobic fermentation system was used as substrate in these studies. The loading rates applied to the lab-scale study were 54.24, 162.72, and 271.20 g N/㎥/day, respectively, and to the pilot-scale study were 43.4, 56.8, 126.4, and 142.8 g N/㎥/day, respectively. A 5-day hydraulic retention time (HRT) was provided to the lab-scale system and to a 1-day HRT for the pilot-scale system. Results obtained in both lab- and pilot-scale studies were similar. The removal rate of kjeldahl nitrogen significantly increased as the loading rate increased (P$lt;0.01). The removal rate of ammonia-N tended to increase as the loading rate increased. The removal rate of biological oxygen demand increased as the loading rate increased (P$lt;0.01), while no statistical differences were observed in the removal rate of the suspended solids (SS). The removal rate of phosphorus increased as the loading rate decreased (P$lt;0.05), which showed an adverse trend of the removal rate of organic mattes such as nitrogen and SS. The results obtained from this study suggest that the loading rate should be considered as crucial factors to remove nitrogen from the animal waste containing high nitrogen by aerobic fermentation.
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고질소함유 가축폐기물의 호기발효에 있어서 탄소원의 첨가가 질소제거 효율에 미치는 영향
정상현(S . H . Chong),이상락(S . R . Lee),김범석(B . S . Kim),이승훈(S . H . Lee),맹원재(W . J . Maeng) 한국축산학회 1996 한국축산학회지 Vol.38 No.3
This study was carried out to develop a treating technique to reduce nitrogen from the organic-liquid waste with high nitrogen content (OLWHN) by aerobic fermentation. The experiment conducted to examine the effect of carbon-source additions (glucose and sodium acetate) on the rate of nitrogen removal by using a lab-scale aerobic fermentation system. Glucose and sodium acetate as organic carbon-sources were applied to OLWHN discharged from a swine farm and the ratios of BOD_5 to kjeldahl-N were controlled at 100 : 64.5, 100 : 65.5 and 100 : 90.7. The removal rates of total nitrogen, phosphonis, and BOD_5 were not influenced by adding glucose and sodium acetate. On the other hand the removal rate of ammonia-N significantly improved in sodium acetate treatment (P$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.
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