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미량원소가 음식물 탈리액의 혐기성 소화효율에 미치는 영향 KCI 등재

Effect of Trace Elements on Anaerobic Digestion of Food Wastewater

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

The objectives of this study were to evaluate biogas production and changes of CH4 contents by trace elements solution dosing to improve the operation efficiency of anaerobic digestion. The solution with trace elements was manufactured by Co, Mo, Ni, and Fe, and the trace elements dosages were gradually increased from reactor R1 to R4. Operation was performed as four modes and organic loading rate was increased from R1 to R4. As a result, digestion efficiency of R2 or R3 was higher than R1 without trace elements solution. Also, it showed that biogas production and CH4 contents of R3 were high compared with R2. However, R4 had a negative effect on the efficiency of anaerobic digestion due to the additional dosing of unnecessary trace elements. Moreover, from the results compared with anaerobic digestion conditions on effect of each trace element, it showed that experiment with the mixture of Co, Ni, Mo, and Fe was the highest digestion efficiency and individual trace element showed high digestion efficiency in the order of Fe, Co, Mo, and Ni. In conclusion, the additional dosing of optimum trace elements is essential to enhance the efficiency of anaerobic digestion.

저자
  • 장부용(서울시립대학교 환경공학과) | Boo-Yong Jang
  • 오용걸(서울시립대학교 환경공학과) | Yong-Keol Oh
  • 신동철(서울시립대학교 환경공학과) | Dong-Chul Shin
  • 박철휘(서울시립대학교 환경공학과) | Chul-Hwi Park Corresponding author