2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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Clean Technology 2008

Thermal hydrolysis characteristics of dewatered sewage sludge

H-C. Ahn, E-S Jang, M-C Eo, H. Kim, C-S Choi, Y-J Chung
Institute for Advanced Engineering, KR

Keywords:
dewatered sludge, thermal hydrolysis, dewaterability, solubilization, particle size distribution, saturated water vapor pressure

Abstract:
This research was designed to investigate thermal hydrolysis characteristics of dewatered sewage sludge. The study involved the laboratory experiments with test condition including reaction temperature(150~200 ) and reaction time(1~5hr), under pressure condition more than saturated water vapor pressure. The results of the experiments show that thermal hydrolysis enhances the dewaterability and solubilization signifidcantly. The cause of this result attributed to a destruction of the sludge flocs and cell wall by thermal hydrolysis.


Nanotech 2008 Conference Program Abstract