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KMID : 1024519980070050659
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Journal of the Environmental Sciences
1998 Volume.7 No. 5 p.659 ~ p.667
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A Study on Experimental Analysis of Semi-Continuous Settling Tank using Characteristics of Solid Sedimentation in the Binary CaCO₃-Water Slurry
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Ahn Won-Sool
Rho Seung-Baik
Kim Jeung-Bae
Park Sang-Won
Choi Chang-Kyun
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Abstract
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In the present paper, batch and semi-continuous settling characteristics of a binary calcium carbonate-water system were investigated. Using experimental data of batch settling characteristics, a graphical analysis for a semi-continuous thickening column was developed and compared with experimental results on the basis of Kynch theory, only where the feed velocity line was within the limits of Kynch theorem III. The analysis showed good agreement with experiments. Quite erroneous results, however, was observed for the analysis of a sludge region on the underloaded operation, which was considered due to the deviation from the limits of theory.
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KEYWORD
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semi-continuous thickening tank, calcium carbonate-water, slurry, settling
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