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http://dx.doi.org/10.11001/jksww.2014.28.3.299

Research on composting of sewage sludge using dryer facility with indirect heating system  

Baik, Seon-Jai (University of Seoul, Environmental Engineering)
Han, In-Sup (University of Seoul, Environmental Engineering)
Choi, Ick-Hoon (Korea Environment Corporation)
Kang, Sung-Hyo (ARK Co., Ltd.)
Hong, Seong-Min (ARK Co., Ltd.)
Publication Information
Journal of Korean Society of Water and Wastewater / v.28, no.3, 2014 , pp. 299-304 More about this Journal
Abstract
The need of reusing sewage sludge is highly increasing as the amount of domestic sewage sludge is growing and sewage management strategies were reinforced. Accordingly, in this research, we studied the composting possibility of sludge in sewage treatment plant J, using dryer facility with indirect system by conducting component analysis of dried sludge and experiment on cultivating crops. It was observed from the component analysis, that the dried sludge is appropriate for both decomposed manure standard of Ministry of Environment and fertilizer standard of Rural Development Administration. Besides, in the experiment on cultivating lettuce, the experimental group(soil + dried sludge) was superior to the control group(soil + bed soil) in apparent condition of leaves tensity and damage by disease and pest. In case of cultivating tomato, the experimental group showed stronger durability of fruits dangling on stems compared to the control group after 9 weeks. Consequently, the excess sludge dried by indirect heating system in the sewage treatment plant J is appropriate for the standard of both Ministry of Environment and Rural Development Administration and show good result in experiment on cultivating crops therefore it can be reused for composting.
Keywords
excess sludge; composting; indirect heating system; dryer facility;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Hwang, E.J. and Jeon, K.S. (2009) Carbonized Sludge as Moisture Amendment in Composting, J. of Korea Society of Waste Management, 26(4), pp.356-366   과학기술학회마을
2 Kim, Y .R. and Son, M.I. (2011) Sludge Drying Method Using Microwave Drying Device and Heat Transfer Medium Oil, J. of the Korean Oil Chemists' Soc., 28(3), pp.367-373.   과학기술학회마을
3 Korea Water and Wastewater Works Association (2011) Standard of Wastewater System
4 Lee, C. H., Kim, S.C. and Jeon, Y.N (2011) Characteristics on Carbonization and Steam Activation in Dried Sewage, Korea Water Congress 2011, pp.331-334.
5 Ministry of Environment (2010) Official Wastes Test Method
6 Ministry of Environment (2011) Statistics of Wastewater
7 Na, E. S., Shin, S.S., Shin, M.S. and Jang, D.S. (2012) A Study on the Optimum Design of Multiple Screw Type Dryer for Treatment of Sewage Sludge, J. of Korean Society of Environmental Engineers, 34(4), pp.223-231   과학기술학회마을   DOI   ScienceOn
8 Rural Development Administartion www.rda.go.kr.
9 Choi, H .M., Ha, S.A., Kim, P.S. and Bae, K.J. (2005) Technology Development of drying/ pyrolysis process to reduce domestic sewage sludge, Korea Society of Waste Management 2005, pp.370-373.