Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)
- Volume 15 Issue 3
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- Pages.83-86
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- 2012
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
DOI QR Code
Change of Sludge-Recycle Ratio for the Bio-gas Production Improvement and Minimization with Two-Stage Anaerobic Digestion
2단 혐기성소화공정에서 반송변화를 통한 Bio-gas 생산량 증대 및 감량화
- Lee, Tae-Woo (Daegu Environ. Installations Corp.) ;
- Yang, Hae-Young (School of Chemical Industry, Yeungnam College of Science & Technology) ;
- Do, Choong-Ho (Korea Engineering Consultants Corp.)
- Received : 2012.05.31
- Accepted : 2012.08.24
- Published : 2012.08.31
Abstract
This study have cross checked the change of internal sludge-recycle in Full-scale Anaerobic-Digestion, and researched about not only the improvement of Bio-gas production from the digested sludge but also the efficient method of sludge minimization. Ultimate aim of the study is to reduce the amount of sludge by the improved efficiency of contact with the organic-matter and the microbes in Anaerobic-Digestion. The sludge-recycle fluidized sludge layer and raised the activity of the sludge, The sludge-recycle ratio of optimum was 500%, VS and COD removal ratio respectively appeared with 67.8% and 70.4%. Through these result of this study, it may be positive view to treat waste sludge by the sludge-recycle ratio in terms of minimization and circulation of resources.