以流體化床芬頓程序去除螺絲廢水中之化學需氧量

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Title:	以流體化床芬頓程序去除螺絲廢水中之化學需氧量 REMOVAL OF COD FROM THE SCREW WASTEWATER BY FLUIDIZED-BED FENTON PROCESS
Authors:	孔釧成
Contributors:	環境資源管理系盧明俊
Keywords:	螺絲廢水最佳化芬頓試劑高級氧化程序 Refractory wastewater Optimization Fenton reagent Advanced oxidation processes
Date:	2017
Issue Date:	2018-01-11 11:42:48 (UTC+8)
Abstract:	本研究探討應用流體化床芬頓程序，處理螺絲廢水的可能性，主要為H2O2進料法、Fe2+、Fe2+進料法、pH與流體化床膨脹等關鍵因素。H2O2在單一進料情況下比三倍進料時有較好的COD去除效果。Fe2+對於流體化床芬頓程序中的COD去除，沒有顯著性影響。Fe2+三倍進料方式，其COD去除率高達81%，是最佳組成。 200%，300%，400%與500%之不同流體化床膨脹，對於鐵結晶沒有顯著性影響。在較高之床膨脹時，可能暴露出更多的固體表面而進行鐵結晶，較高的上流速度可能會由於沖刷效應而降低晶體生長。在最佳條件下，高Fe2+效率可獲得相對較高的COD去除率；因此，該技術成為螺絲廢水處理具成本效益上的選擇。 This research investigated the possibility of applying the fluidized-bed Fenton process to treat the screw wastewater. Key Factors including H2O2 feeing mode, Fe2+, Fe2+ feeding mode, pH and bed expansion were studied. At the single supply of H2O2 provided slightly better COD removal than the triple supply. The effect of Fe2+ did not significantly affect on the COD removal in the fluidized-bed Fenton process. The 3-step feeding mode of Fe2+ was the best composition which provided the COD removal of 81%. Varying bed expansion from 200%, 300%, 400% and 500% did not have any significant impact on iron crystallization. At higher bed expansion could expose more solid surface for iron crystallization, higher upflow velocity could diminish the crystal growth due to scouring effect. At the optimum condition, high Fe2+ efficiency with respect to the COD removal was obtained; hence, making this technology a cost effective option for screw wastewater treatment.
Relation:	電子全文公開日期：2019-06-27，學年度：105，79頁
Appears in Collections:	[Dept. of Environmental Resources Management] Dissertations and Theses

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