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研究生:高嫚聰
研究生(外文):Man-Tsung Kao
論文名稱:酸鹼值控制下沉積物中萃取重金屬的初步探究
論文名稱(外文):Preliminary Study of Extraction of Heavy Metals in Sediments under pH-controlled Conditions
指導教授:呂學諭
指導教授(外文):Hsueh-Yu Lu
口試委員:陳文福呂學諭王聖瑋
口試委員(外文):Wen-Fu ChenHsueh-Yu LuSheng-Wei Wang
口試日期:2014-05-06
學位類別:碩士
校院名稱:國立中正大學
系所名稱:應用地球物理研究所
學門:自然科學學門
學類:地球科學學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:中文
論文頁數:75
中文關鍵詞:嘉南平原砷污染沉積物
外文關鍵詞:Chianan PlainArsenic PollutionSediment
相關次數:
  • 被引用被引用:2
  • 點閱點閱:348
  • 評分評分:
  • 下載下載:30
  • 收藏至我的研究室書目清單書目收藏:0
台灣地區不論是飲用水、灌溉用水或養殖用水,其來源有相當大的比例來自於地下水;因此,地下水水質對人體健康有很大影響,但長久以來地下水中重金屬離子含量,在飲用水水源水質的標準下時有超過管制標準的趨勢,尤其是地下水砷污染的範圍廣泛,一直是台灣水質污染的重要議題,更值得重視並投入心力研究污染發生的機制。使用飽和碳酸鈣萃取液的分析結果,經多變量分析後,可擷取到兩個因素,因素一包含附了砷以外的大多數元素,且相互之間為正相關,可解釋為吸脫附反應的控制;而因素二含As、Sr、Zn等三個元素,其可能為沉積物中有機物的影響。再者,飽和碳酸鈣萃取液在時間序列上的萃取實驗結果顯示,As在初期濃度增加的趨勢,之後即呈快速下降,至14天時達最低濃度,此結果顯示As及重金屬的吸脫附可能主要受控於酸醶值。另利用不同鹽度的氯化鈉溶液進行萃取實驗,結果顯示在氯化鈉濃度低於1000 ppm時,可溶出的As並無太大的差異,直到氯化鈉溶液濃度達5000 ppm時,As濃度有大幅增加的現象,顯示水中氯離子可能有與砷酸鹽競爭吸附位的情況發生。
Groundwater is one of the major source for supplying daily and agricultural usages in Taiwan; therefore, the groundwater quality is crucial to have considerable effect on public health. Arsenic pollution increases increases the risk of developing diseases and gradually becomes a serious issue in the management of groundwater resources in Taiwan. According to the principal component analysis on the results of BCR extraction procedure, two principal components can be extracted. Factor 1 includes most of the heavy metals except As. It can be explained with the sorption behavior between extraction solution and sediments. Factor 2 is composed of As, Sr and Zn. It could be controlled by the proportion of organic matter in sediments. In addition, an increase trend of arsenic can be observed in the early stage of extraction experiments. However, the extracted arsenic gradually decreased after 5 day extraction and achieved a minimum concentrations on the final (14 day extraction). This could result from the increase of pH during the extraction experiments. The extraction experiments with various concentrations of NaCl were also performed in this study. The results demonstrate that the amount of extracted arsenic is stable when the extraction solution has a lower concentration of NaCl. However, the extracted arsenic dramatically increases if the concentration of NaCl was greater than 5000 ppm.
目錄
第一章 緒論 1
1.1 研究動機 1
1.2 前人研究 2
1.2.1 嘉南平原 2
1.2.2 濁水溪沖積扇 4
1.3 砷的地球化學特性 4
1.4 以稀土族元素為天然示蹤劑 6
1.5 研究區域概況 7
第二章 研究方法 12
2.1、實驗設計與原理 12
2.1.1基本水體製備 12
2.1.2 厭氧反應系統 13
2.1.3碳酸鈣萃取液 14
2.2、實驗測試與評估 15
2.3、採樣與前處理 16
2.3.1 採樣 16
2.3.2 樣本前處理 17
2.4、萃取實驗 18
2.3.1碳酸鈣溶液萃取實驗 19
2.3.2酸鹼度萃取 19
2.3.3氯化鈉萃取實驗 19
第三章 儀器分析 20
3.1、離子層析儀 20
3.1.1 原理概述 20
3.1.2 儀器構造 21
3.1.3 分析方法 23
(1) 採樣與保存 23
(2) 分析步驟 24
(3) 資料處理 25
(4) 品質管制(QA/QC) 26
3.2 感應耦合電漿質譜儀 27
3.2.1 原理概述 27
3.2.2 儀器構造 27
(1) 進樣系統 28
(2) 激發系統 29
(3) 離子透鏡 30
(4) 八極柱氣體反應室 30
(5) 四極柱 32
(6) 偵測器 32
3.3.3 分析方法 33
(1) 採樣與保存 33
(2) 標準品配製 33
(3) 分析步驟 34
(4) 品質管制 34
第四章 結果與討論 39
4.1、飽合碳酸鈣溶液萃取實驗 39
4.1.1 多變量統計分析 39
(a)群集分析(Cluster Analysis) 39
(b)主成分分析(Principal Component Analysis) 40
4.1.2 萃取時間序列結果 42
4.1.3 稀土族元素 43
4.2、鹽度變因實驗 44
4.2.1 多變量統計分析 44
4.2.2 稀土族元素 46
第五章 結論 49
參考文獻 50
附錄 55

中文文獻
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鄧瑞元(2012),連續萃取法對曾文溪流域含水層水岩反應,國立中正大學應用地球物理所碩士論文,112頁。
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賴昱劭(2011),大屯山北磺溪集水區之水化學研究及水文應用,國立中正大學應用地球物理所碩士論文,92頁。
賴柏宏(2013),北磺溪鐵鋁金屬氧化物對重金屬之吸附/脫附行為研究,國立中正大學應用地球物理所碩士論文,115頁。
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環境保護署(2007),水中金屬及微量元素檢測方法-感應耦合電漿質譜法,(NIEA W313.52B)。

英文文獻
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