단상혐기성소화조에서 가축분뇨와 음식물류폐기물의 병합비율에 따른 유기물 제거량에 대한 가스발생량 분석 (Analysis of the Amount of Gas Generation for the Amount of Organic Matter Removal in Accordance with the Merge Ratio of Livestock Manure and Food Waste in a Single-Phase Anaerobic Digester)

서지정보

· 발행기관 : 한국환경기술학회
· 수록지 정보 : 한국환경기술학회지 / 19권 / 2호 / 116 ~ 121페이지
· 저자명 : 최영익, 신대열, 권민지, 이준희, 정병길

초록

본 연구는 단상혐기성소화 공정을 이용하여 가축분뇨 및 음식물류 폐기물을 병합 처리하여 제거되는 유기물 제거량에 대한 가스발생량을 분석하는 것에 그 목적이 있다. 이를 위해 3개의 반응조를 제작하여 가축분뇨 및 음식물류 폐기물의 병합비율을 각각 R1(5:5), R2(7:3) 및 R3(3:7)로 설정하여 실험을 진행하였다. TS 및 VS를 측정하여 유기물의 제거율을 구하고 VFA의 생산량을 측정하여 유기물 및 VFA 상관관계를 분석하였다. 실험에 사용된 가축분뇨는 K시에 위치하고 있는 축사에서 채취한 어미 돼지의 분을 사용하였고, 음식물의 경우 B시 D대학교 구내식당에서 발생하는 음식물로서 수분이 충분히 제거된 것을 채취하였다. 운전조건은 R1의 경우 음식물과 축산폐수의 비를 5:5, R2는 음식물과 축산폐수의 비를 7:3, R3는 3:7의 비로 하였고, 혐기성소화액 비율은 1:0.2로 유효용량 1.3 L를 채운 후 실시하였다. 실험 결과 병합비율이 5:5일 때 유기물이 39.8 % 감소할 때 VFA는 1,233 mg/kg 감소, 7:3일 때 유기물이 37.5 % 감소할 때 VFA는 1,253 mg/kg 감소 및 3:7일 때 유기물이 45.6 % 1,258 mg/kg 감소하는 것으로 나타났다.

영어초록

The present study aims to analyze the amount of gas generation for the amount of organic matter removal that is removed by the merging process of livestock manure and food type waste using the single-phase anaerobic digestion process. To achieve this end, three reactors were fabricated and experiments were conducted by setting the merge ratios of livestock manure and food type waste to R1 (5:5), R2 (7:3) and R3 (3:7), respectively. TS and VS were measured to find out the removal rate of organic matter, and VFA production amount was measured to analyze the correlation between the organic matter and VFA. The livestock manure used in the experiment was obtained from the mother pig collected from the pigsty located in K city, and the food was obtained from the food with sufficient moisture removed from the D university dining hall in B city. In terms of the operating condition, the ratio of food and livestock wastewater was set to 5:5 in the case of R1, 7:3 in the case of R2, and 3:7 in the case of R3. In terms of the anaerobic digestive fluid ratio was set to 1:0.2, and it was conducted after an effective capacity of 1.3 L was filled. As a result, VFA decreased by 1,233 mg/kg when the organic matter was reduced by 39.8 % at the merge ratio of 5:5, and VFA decreased by 1,253 mg/kg when the organic matter was reduced by 37.5 % at the merge ratio of 7:3, and VFA decreased by 1,258 mg/kg when the organic matter was reduced by 45.6 % at the merge ratio of 3:7.

참고자료

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