Browse > Article
http://dx.doi.org/10.11001/jksww.2014.28.4.411

Reduction of sludge production and recycled nutrients loading by high-rate aerobic digestion(CaviTec II) with inorganic sludge separation and sludge solubilization  

Lee, Dong-Woo ((주)이피에스솔루션 환경기술연구소)
Bae, Kang-Hyeong (뉴엔텍(주) 환경기술연구소)
Cho, Kun-Sang (뉴엔텍(주) 환경기술연구소)
Kim, Sung-Hong (조선대학교 토목공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.28, no.4, 2014 , pp. 411-417 More about this Journal
Abstract
The performance of the new aerobic digestion system combined with inorganic sludge separation unit and sludge solubilization unit, CaviTec II, is evaluated. Anaerobic digester effluent sludge is used for feed sludge of CaviTec II system. By addition of CaviTec II, the amount of cake generated is reduced by 27%, and the soluble nitrogen is reduced by 92%.
Keywords
aerobic digestion; sludge solubilization; inorganic sludge separation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Nguyen D.X. (2007) Development of the venturi cavitation system for sludge solubilization to improve anaerobic digestibility. Master's Thesis, INHA University.
2 Show K.Y., Mao T. and Lee D.J. (2007) Optimisation of sludge disruption by sonication, Water Res., 41, pp.4741-4747.   DOI   ScienceOn
3 Wareham D.G., Hall K.J. and Mavinic D.S. (1993) Real-time control of aerobic - anoxic sludge digestion using ORP, ASCE, Env. Eng. Div., 119(1), pp.120-136.   DOI
4 Chang T.C., You S.J., Damoda R.A., and Chen Y.Y. (2011) Ultrasound pre-treatment step for performance enhancement in an aerobic sludge digestion process, Journal of taiwan Institute of Chemical Engineers, 42, pp.801-808.   DOI   ScienceOn
5 Gogate P.R. and Pandit A.B. (2005) A review and assessment of hydrodynamic cavitation as a technology for the future, Ultrasonics Sonochemistry, 12(1-2), pp.21-27.   DOI   ScienceOn
6 Hao O.J. and Kim M.H., (1990) Continuous preanoxic and aerobic digestion of waste activated sludge, ASCE, Env. Eng. Div., 116(5), pp.863-879.   DOI
7 Kelly H.G., Melcer H. and Mavinic D.S. (1993) Autothermal thermophilic aerobic digestion of municipal sludges: A one-year, full-scale demonstration project, Wat. Env. Res., 65(7), pp.849-861.   DOI
8 Kim S.H. and Chung T.H. (1998) Transformation of Solids in the Intermittent Aerobic Sludae Diaestion, Journal of Korean Society of Water Quality, 14(3), pp.271-280(1998).
9 Lee C.Y. and Park S.Y. (2008) Improvement of solubilization and anaerobic biodegradability for sewage sludge using ultrasonic Pre-treatment. Journal of Korea Organic Resource Recycling Association, 16, pp.83-90.
10 Maeng J.W. and Bae J.H. (2009) Comparisons of Sludge Pre-Treatment Systems : Hydrodynamic vs Ultrasonic Cavitation, Journal of Korean Society of Environmental Engineers. Res, 31(2), pp.90-95.   과학기술학회마을
11 Maeng, J.W. and Bae, J.H. (2010) Pre-Treatment of Sewage Sludge by Hydrodynamic Cavitation-II : Enhancement of Digestion Efficiency, Journal of Korean Society of Environmental Engineers. Res, 32(3), pp.264-270.   과학기술학회마을
12 Mavinic D.S. and Koers D.A. (1982) Fate of nitrogen in aerobic sludge digestion, J. WPCF., 54(4), pp.352-360.
13 Neis U., Tiehm A. and Nickel K. (2000) Enhancement of anaerobic sludge digestion by ultrasonic disintegration, Water Sci. Technol., 42, pp.73-80.