Anaerobic Co-digestion of Dairy Manure and Crude Glycerin

젖소분뇨와 Crude Glycerin의 통합혐기소화

  • Lee, Sae-Min (Department of Animal Science and Technology, Konkuk University) ;
  • Lee, Sang-Rak (Department of Animal Science and Technology, Konkuk University)
  • 이새민 (건국대학교 동물생명과학대학 동물자원과학전공) ;
  • 이상락 (건국대학교 동물생명과학대학 동물자원과학전공)
  • Received : 2013.11.25
  • Accepted : 2013.12.21
  • Published : 2013.12.30


In this study, the mixture ratio included 20% (GLY 20), 40% (GLY 40), and 60% (GLY 60) based on VS with the control group (GLY 0) with no crude glycerin added. Maintaining stable pH, GLY 20 and GLY 0 showed the highest total output of biogas (1.24 L/L/d) and methane(0.78 L/L/d) as its volatile solids reduction rate was 53.56%. In case of GLY 40 and GLY 60, their pH was rapidly reduced after seven days of the study, so that their anaerobic digestion was all stopped.In the results of the study, it is desirable to add crude glycerin less than 20%, and it would be necessary to have the future researches on more detailed organic loading rate of each ratio, and analysis on economic feasibility.



Supported by : 농촌진흥청


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