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 en_US
ISSN 0043-1354
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 否
國別 GBR
公開徵稿
出版型式 ,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/103043 )

機構典藏連結
SDGS 潔淨水與衛生,產業創新與基礎設施