Journal of Korean Society of Water and Wastewater (상하수도학회지)
- Volume 10 Issue 1
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- Pages.85-95
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- 1996
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- 1225-7672(pISSN)
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- 2287-822X(eISSN)
Effect of sludge concentration on sludge dewaterability and cake clogging analysis
슬러지의 탈수성(脫水性)에 대한 농도(濃度)의 영향(影響)과 케이크 폐색현상(閉塞現象)의 해석(解析)
Abstract
Although the specific resistance to filtration is the most frequently employed means for characterizing dewaterability of a sludge, it presently is not possible to design nor to prediet performance of dewatering facilities using traditional linearized parabolic filtration equation, that is, the specific resistance model because of theoretical and practical inadequacies of the concept. Limitations of the specific resistance model reflect the need to examine fundamental sludge properties and filtration behaviors affecting dewaterability. From this study, two major limitations of the specific resistance model were noted. First, specific resistance values are very dependent on the sludge concentration because of the variations of particle size distribution and cake clogging to occur when surface area mean diameter is less than
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