Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/515
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    Title: 電磁場輔助分批連續式奈米級元素鐵反應槽去除地下水中六價鉻之研究
    Authors: 林健榮
    Contributors: 環境工程與科學系
    Keywords: 奈米零價鐵
    氧化還原
    電磁場
    Date: 2006
    Issue Date: 2008-05-19 13:37:29 (UTC+8)
    Publisher: 台南縣:嘉南藥理科技大學環境工程與科學系
    Abstract: 本研究探討以電磁場輔助分批連續式奈米級零價鐵反應槽去除水中六價鉻離子之效果。研究所用奈米級零價鐵粉係於實驗室利用化學還原法所合成,藉由掃描式電子顯微鏡觀測得粒徑介於50~80 nm間。研究過程中探討不同零價鐵/六價鉻質量比對六價鉻離子在不同反應時間之總去除量及單位去除量(g-Cr6+/g-Fe2+),並且在反應的過程中一併分析溶液中pH、DO、ORP、亞鐵離子與六價鉻離子之濃度變化。研究結果發現水中六價鉻之去除率隨零價鐵/六價鉻質量比之增加而增加,但隨反應批次之增加而降低。另外,在質量比為10:1時,元素鐵對六價鉻之單位去除量為0.196,高於質量比20:1、40:1 時之單位去除量0.158及0.110,相較之下質量比為10:1條件下對於低濃度六價鉻離子去除具有較高的單位去除率。
    Relation: 計畫編號 : CNEE9514
    Appears in Collections:[Dept. of Environmental Engineering and Science (including master's program)] Chna Project

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