한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2002년도 봄 학술발표회 논문집
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- Pages.313-320
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- 2002
초미립자 탈수성 증대를 위한 초음파 활용에 관한 연구
Ultrasonically Enhanced Dewaterability of Fine Particles
- Oh, Chul (Dept. of Civil Engineering, Myongji University) ;
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Kim, Byoung-Il
(Dept. of Civil Engineering, Myongji University) ;
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Kim, Young-Uk
(Dept. of Civil Engineering, Myongji University)
- 발행 : 2002.03.01
초록
In accordance with the need of developing a methodology for the sludge reduction, this study investigates the effect of sonication on the dewaterability of the sewage sludge. The investigation involves laboratory experiments of the sewage sludge from Yongin Waste Treatment Plant. The Laboratory tests were conducted under a broad range of conditions including energy levels of ultrasonic waves, time for the treatment, pH, and effect of polymers. The results of the study show that sonication enhances the dewaterability significantly The degree of enhancement varies with sonication power, treatment time, the amount of sludge treated. The effect of sonication on the temperature and pH of the test specimens seems not to be significant. The polymer can be useful to enhance the effectiveness of ultrasound treatment.