Effects of blending of desalinated and conventionally treated surface water on iron corrosion and its release from corroding surfaces and pre-existing scales
學年 101
學期 2
出版（發表）日期 2013-07-01
作品名稱 Effects of blending of desalinated and conventionally treated surface water on iron corrosion and its release from corroding surfaces and pre-existing scales
作品名稱（其他語言）
著者 H. Z. Liu; K. D. Schonberger; Peng, C. Y.; J. F. Ferguson; E. Desormeaux; P. Meyerhofer; H. Luckenbach; 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 47(11), pp.3817-3826
摘要 This study examined effects of blending desalinated water with conventionally treated surface water on iron corrosion and release from corroding metal surfaces and pre-existing scales exposed to waters having varying fractions of desalinated water, alkalinities, pH values and orthophosphate levels. The presence of desalinated water resulted in markedly decreased 0.45 μm-filtered soluble iron concentrations. However, higher fractions of desalinated water in the blends were also associated with more fragile corroding surfaces, lower retention of iron oxidation products and release of larger iron particles in the bulk water. SEM, XRD and XANES data showed that in surface water, a dense layer of amorphous ferrihydrite phase predominated in the corrosion products. More crystalline surface phases developed in the presence of desalinated water. These solid phases transformed from goethite to lepidocrocite with increased fraction of desalinated water. These effects are likely to result from a combination of chemical parameters, notably variations of the concentrations of natural organic matter, calcium, chloride and sulfate when desalinated and conventionally treated waters are blended.
關鍵字 esalinated water;Iron corrosion;Blending;Surface water;Corrosion scales;Natural organic matter
語言 en
ISSN 0043-1354
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 GBR
公開徵稿
出版型式 ,紙本
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