오존과 초음파 동시처리에 의한 하수슬러지 가용화 특성 연구

Title
오존과 초음파 동시처리에 의한 하수슬러지 가용화 특성 연구
Other Titles
Solubilization of Sewage Sludge by Co-ozonation with Ultrasonication
Author(s)
전관수양봉호[양봉호]전창훈[전창훈]
Keywords
Sewage sludge; Solubilization; Ozonation; Ultrasonication; Centrifuge; Filtrate
Issue Date
201101
Publisher
한국폐기물자원순환학회
Citation
한국폐기물자원순환학회지, v.28, no.1, pp.60 - 66
Abstract
The solubilization of sewage sludge by co-ozonation with ultrasonication was evaluated in this study. The COD, T-N and T-P of filtrate and centrifugal supernatant from sludge were determined after ozonation, ultrasonication and co-ozonation with ultrasonication for 30 minutes. The concentrations of centrifugal supernatant were higher than filtrate as much as 25 ~ 138%, 33 ~ 104% and 15 ~ 75% in COD, T-N and T-P, respectively. The COD, T-N and T-P of centrifugal supernatant from sludge after alkaline co-ozonation with ultrasonication were higher than others as much as 111 ~ 375%, 29 ~ 89% and 40 ~ 200%. The alkaline ozonation, ultrasonication and co-ozonation with ultrasonication decreased the VSS/TS ratio to 3.98%, 5.49% and 14.20% comparing with raw sludge. The specific resistance of sludge for dewatering after alkaline co-ozonation with ultrasonication was much higher than raw sludge as much as 2.78E + 3%. As a result of this study, alkaline co-ozonation with ultrasonication would be useful for solubilization of organic sludge before the anaerobic digestion.
URI
http://hdl.handle.net/YU.REPOSITORY/25712
ISSN
2093-2332
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공과대학 > 환경공학과 > Articles
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