教師資料查詢 | 類別: 期刊論文 | 教師: 李奇旺 Chi-Wang Li (瀏覽個人網頁)

標題:Combined ultrafiltration and suspended pellets for lead removal
學年94
學期1
出版(發表)日期2005/10/15
作品名稱Combined ultrafiltration and suspended pellets for lead removal
作品名稱(其他語言)
著者李奇旺; Li, Chi-wang; Liang; Yang-min; Chen, Yi-ming
單位淡江大學水資源及環境工程學系
出版者Elsevier
著錄名稱、卷期、頁數Separation and Purification Technology 45(3), pp.213-219
摘要A novel process combining an outside-in ultrafiltration membrane and suspended pellets in a stirred tank reactor for removing lead (Pb) from aqueous solutions was investigated. The incorporation of the membrane avoids breakthrough of fine particulate matter, which can plague conventional fluidized pellet reactors. The Pb removal efficiency increased with increasing solution pH and pellet surface area. At pH 7, increasing the total carbonate-to-lead molar ratio increased lead removal efficiency. However, increasing pH is more effective than increasing total carbonate-to-lead molar ratio for improving treatment efficiency. Using XRD, SEM and EDX, we concluded that the surface of the pellets was approximately 15% covered by Pb3(CO3)2(OH)2 at pH 9.0 after 5 days of operation with a feed containing 50 mg L−1 Pb.
關鍵字Ultrafiltration;Lead;Pellet;Crystallization
語言英文
ISSN1383-5866
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式,紙本
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