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Application of Particle Size Analysis to Predict the Settleability of CSO Pollutants  

Yoon, Hyun Sik (환경관리단)
Lee, Doojin (한국수자원공사 수자원연구원)
Park, Young Suk (강남대학교 도시건축공학부)
Publication Information
Journal of Korean Society of Water and Wastewater / v.20, no.2, 2006 , pp. 295-302 More about this Journal
Abstract
Over the past decades, a flocculation and/or sedimentation process have been adopted to remove pollutants from CSOs. It has been learned that major factors affecting settlement of pollutants are the particle size distribution, their settling velocities and their specific gravity. It is, therefore, a good idea to analyze the particle size distribution and settleability of CSOs pollutants in order to develop details in designing a process. Discussed in this study are pollutant characteristics of CSOs such as particle size distribution and settleability of pollutants. The power law function is applied and is found to be an effective and reliable index for expressing the particle size distribution of pollutants in CSOs. Based on the regression analysis it is observed that the derived constants of curves representing settling velocity profile are proportional to the initial concentration of particles and to the ${\beta}$-values of power law distributions.
Keywords
CSOs; particle size distribution; power law function; settleability; settling column test; settling velocity;
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