https://scholars.lib.ntu.edu.tw/handle/123456789/64906
標題: | 天然有機物對鋁鹽污泥膠羽特性及其對污泥毯澄清池穩定性之影響(2/3) | 作者: | 李篤中 | 關鍵字: | 泥毯;穩定性;調理;模型;Blanket;stability;conditioning;model | 公開日期: | 26-四月-2004 | 出版社: | 臺北市:國立臺灣大學化學工程學系暨研究所 | 摘要: | 本計畫擬以三年時間,探討與解析有機質對泥毯 穩定性之影響。在第二年的報告中,我們分析泥毯中 之固體分佈之動力行為,並以PACl 調理之人工原水進 行實驗驗証。在本報告中比較不足量、過量、及適量 調理之固體通量行為。 This report summarized the experimental results of the second year in the three-year-project investigating the effects of organic substances on blanket stability. We analyzed the blanket dynamics in a fluidized bed using a simplified one-dimensional model. The model predicted that the distribution of the solids fraction, initially randomly distributed in the blanket, would firstly evolve to a wave-like distribution at a lower solids fraction. Then the blanket would compact itself to another uniform distribution at a higher solids fraction. Experimental works with synthetic raw water coagulated with PACl fluidized in a lab-scale fluidized bed confirmed the theoretical predictions. The solids flux plot was constructed with underdosed, optimal, and overdosed suspensions. The operating condition at which the effluent turbidity reached a minimum was indicated as the “optimal’ condition of the blanket system. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/9374 | 其他識別: | 922214E002007 | Rights: | 國立臺灣大學化學工程學系暨研究所 |
顯示於: | 化學工程學系 |
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922214E002007.pdf | 66.98 kB | Adobe PDF | 檢視/開啟 |
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