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The Study on the Composting by Using Dam Suspended Particle Sawdust and Sewage Sludge  

Ryu, Ji-Hune (Korea Water Resources Corporation)
Lee, Jong-Jin (PanKorea CO.,LTD.)
Hong, Joo-Hwa (PanKorea CO.,LTD.)
Chang, Ki-Woon (PanKorea CO.,LTD.)
Lee, Gyu-Seung (College of Agriculture & Life Science in Chungnam National University)
Park, Gwan-Soo (College of Agriculture & Life Science in Chungnam National University)
Han, Ki-Pil (PanKorea CO.,LTD.)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.18, no.1, 2010 , pp. 98-103 More about this Journal
Abstract
This study was carried out on the composting of the most part of the plant waste materials inflowed-drifting into the dam during the localized heavy rain and the rainy season, due to the abnormal climate change, and for the sewage sludge banned to dispose legally into the ocean from the year of 2012. It was analysed the distinctive physicochemical qualities of the compost with treatment S-1(dam suspended particle sawdust : oak tree bark : sewage sludge : chicken manure = 30 : 20 : 40 : 10) and treatment S-2(dam suspended particle sawdust : oak tree bark : sewage sludge : chicken manure = 30 : 30 : 30 : 10). Both S-1 and S-2 maintained for 10 days at above $65^{\circ}C$ of the compost pile temperature, and the most of its pathogen were destroyed. In case of pH, until the 90th day into composting, S-1 with the pH value of 7.78 was slightly higher than S-2. The C/N value of S-1 was 15.3 and that of S-2 was 16.9. The quality of its final product was satisfied to the manufacture-standards. The GI value of S-1 was 91 higher than that of S-2, which was 84. In conclusion, it is highly recommendable to manufacture S-1 for its frequent usage of dam suspended particle sawdust and sewage sludge, and for its excellent quality and safety.
Keywords
Dam suspended particle sawdust; sewage sludge; composting;
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