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研究生:鄭如涵
研究生(外文):Ju-HanCheng
論文名稱:混凝對天然有機物(NOM)去除之研究
論文名稱(外文):The Study on NOM Removal by Coagulation
指導教授:葉宣顯
指導教授(外文):Hsuan-Hsien Yeh
學位類別:碩士
校院名稱:國立成功大學
系所名稱:環境工程學系碩博士班
學門:工程學門
學類:環境工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:78
中文關鍵詞:氯化鐵明礬混凝NOM
外文關鍵詞:Ferric chlorideAlumNOMCoagulation
相關次數:
  • 被引用被引用:6
  • 點閱點閱:635
  • 評分評分:
  • 下載下載:129
  • 收藏至我的研究室書目清單書目收藏:0
本研究之重點在於探討不同混凝劑對自然原水中溶解性有機物(NOM)之去除。原水取自鳳山及路竹兩淨水廠之進流原水,其分別來自不同之水庫。以明礬及氯化鐵為混凝劑,進行混凝瓶杯試驗。對原水及混凝後之上澄液,除分析溶解性有機碳(NPDOC)、UV254、比UV吸光值(SUVA)等與有機物有關之參數外,另外更利用高效能粒徑排除層析儀(high performance size exclusion chromatography, HPSEC)串聯UV-VIS、螢光及DOC三種偵測器,及螢光激發/發散陣列光譜儀(excitation/emission matrixs spectrofluorometer, EEMs),將原水中NOM依其分子量大小及特性分成不同之族群,以觀察不同混凝劑對NOM中不同族群之去除狀況。
實驗結果顯示鳳山原水中所含NOM,以來自生物源之大分子生物聚合物及小分子酸為主,而路竹原水則以來自陸源之腐植質為主。明礬較之氯化鐵對鳳山原水之NPDOC有較高之去除率,反之,氯化鐵對路竹原水之NPDOC有較高之去除率。根據HPSEC及EEMs之分析,可知其原因在於明礬對生物聚合物有較佳之去除率,而氯化鐵則對腐植質有較佳之去除率。

The object of this research focuses on the NOM removal from natural water by different coagulants. Two kinds of raw water, which were the influent of the Feng-Shan (FS) and Lu-Jhu (LJ) Water Treatment Plant, respectively, were collected and studied. Conventional jar tests were conducted, with alum and ferric chloride as coagulant. Comprehensive dissolved organic analyses were performed for both raw water and the supernatants from jar test. In addition to the gross dissolved organic parameters, such as non-purgeable dissolved organic carbon (NPDOC), UV254, and specific UV absorbance (SUVA), the NOM were also characterized by both high-pressure size exclusion chromatography (HPSEC), which consisted of a high-performance liquid chromatography with UV-VIS, fluorescence, and on-line DOC detectors in series, and fluorescence excitation-emission matrix (EEM) spectrometry.The purpose is to look into the effect of different coagulants on the removal of various organic fractions.
The results show that the NOM in the source water from FS were dominated by microorganism-related extracellular polymer substance and low molecular weight acids, while that from LJ were dominated by humic substance, probably from the terrestrial source. Based on the results from jar tests, alum was found to have higher DOC removal on source water from FS than ferric chloride, while ferric chloride was superior to alum for source water from LJ. Based on the results from HPSEC and EEMs, these can be explained by the higher removal efficiency of microorganism- related extracellular polymer substance by alum, while ferric chloride has higher efficiency for humic substance removal.

摘要I
AbstractII
致謝IV
目錄V
圖目錄VII
表目錄X
第一章 前言1
1-1研究緣起1
1-2研究目的1
第二章 文獻回顧2
2-1混凝2
2-1-1混凝作用2
2-1-2混凝機制2
2-1-3影響混凝之因素6
2-1-4鋁鹽之混凝8
2-1-5鐵鹽之混凝11
2-2水體中有機物介紹15
2-2-1有機物對淨水程序之影響 16
2-2-2混凝劑對不同形式自然有機物之去除 16
2-3有機物之特性分析17
2-3-1 SEC偵測分子量之原理與特性17
2-3-2螢光分析之原理與特點19
第三章 實驗程序與方法28
3-1實驗流程規劃28
3-2實驗材料30
3-2-1天然原水資料30
3-2-2無機鹽混凝劑之配製31
3-3瓶杯試驗31
3-4水質分析31
3-4-1有機物特性分析31
3-4-2一般水質分析36
第四章 結果與討論38
4-1鳳山與路竹原水之基本水質特性分析與比較38
4-1-1基本水質分析38
4-1-2有機物添加38
4-1-3原水之性質討論39
4-2混凝對天然有機物之去除48
4-2-1明礬與氯化鐵混凝去除鳳山原水中天然有機物之分析52
4-2-2明礬與氯化鐵混凝去除路竹原水中天然有機物之分析57
4-2-3明礬與氯化鐵對有機物去除特性之分析62
第五章 結論與建議67
5-1 結論67
5-2建議68
參考文獻69
附錄A 檢量線74
附錄B 原始數據75

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