教師資料查詢 | 類別: 期刊論文 | 教師: 彭晴玉 CHING-YU PENG (瀏覽個人網頁)

標題:Speciation of trace inorganic contaminants in corrosion scales and deposits formed in drinking water distribution systems
學年100
學期1
出版(發表)日期2011/11/01
作品名稱Speciation of trace inorganic contaminants in corrosion scales and deposits formed in drinking water distribution systems
作品名稱(其他語言)
著者Peng, C. Y.; G. V. Korshin
單位淡江大學水資源及環境工程學系
出版者London: I W A Publishing
著錄名稱、卷期、頁數Water Research 45(17), pp.5553-5563
摘要Sequential extractions utilizing the modified Tessier scheme (Krishnamurti et al., 1995) and measurements of soluble and particulate metal released from suspended solids were used in this study to determine the speciation and mobility of inorganic contaminants (As, Cr, V, U, Cd, Ni, and Mn) found in corrosion scales and particles mobilized during hydraulic flushing events. Arsenic, chromium and vanadium are primarily associated with the mobilization-resistant fraction that is resistant to all eluents used in this study and also bound in highly stable crystalline iron oxides. Very low concentrations of these elements were released in resuspension experiments. X-ray absorbance measurements demonstrated that arsenic in the sample with the highest As concentration was dominated by As(V) bound by iron oxides. Significant fractions of uranium and cadmium were associated with carbonate solids. Nickel and manganese were determined to be more mobile and significantly associated with organic fractions. This may indicate that biofilms and natural organic matter in the drinking water distributions systems play an important role in the accumulation and release of these inorganic contaminants.
關鍵字
語言英文(美國)
ISSN0043-1354
期刊性質國外
收錄於SCI;
產學合作
通訊作者Peng, C. Y.
審稿制度
國別英國
公開徵稿
出版型式,紙本
相關連結
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