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Student Number 953206003
Author Lee-ze i(李姿儀)
Author's Email Address No Public.
Statistics This thesis had been viewed 1426 times. Download 1636 times.
Department Graduate Institute of Environmental Engineering
Year 2008
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title Using multi-wave length UV/VIS absorption spectrum establishment waste water in COD and of feasibility study SS automatic monitor technology
Date of Defense 2009-01-17
Page Count 74
Keyword
  • COD
  • Spectrum analysis
  • SS
  • UV/VIS absorption spectrum
  • Abstract Information about the properties of influent wastewater helps a treatment plant to adjust its treatment processes or procedures to stabilize the quality of effluent wastewater. Once the properties of wastewater can be understood efficiently, the treatment plant can function effectively and its performance can be improved as well. Respecting the deficiencies of traditional measurement equipments and experiment analysis, manual test is not able to offer the required information spontaneously and cost a lot. When the situation with unusual water quality happened to the wastewater treatment plant, optical measuring methods, which have fast quantity examine and low cost construction, are more effective to solve and improve the problem caused by the traditional way. Using absorption spectrum analysis technique with multiple wave-length UV/VIS and mathematical regression, an estimation model for COD and SS concentration was developed and verified in this study. Based on the experimental results, SS concentration and particle size distribution affect UV/VIS absorption spectrum and cause the measurement error. Therefore, experiments with different diluting and filtering recipes were made to discuss the effects from SS concentration and particle size to the measurement of COD and SS concentration. The result has shown that the Smaller the SS particle size is, the shorter wave-length is selected in the estimation model. The estimation result of SS and COD concentration has shown that the error compared to manual test was less than 15% and 20%. Therefore, the COD and SS concentration estimation technique with multi wave-length UV/VIS absorption spectrum developed in this study is relatively stable and accurate and can be the sound foundation for development of water quality automatic monitoring techniques and equipments in the future.
    Table of Content 第一章 前言 ........................................................................................................ 1
    1.1 研究緣起 ...................................................................................................... 1
    1.2 研究目的 ...................................................................................................... 2
    第二章 文獻回顧 .................................................................................................. 3
    2.1 光學頻譜種類與應用 .................................................................................. 3
    2.2 UV/VIS 吸收光譜量測原理 ........................................................................ 5
    2.3 吸收光譜定性及定量方法 .......................................................................... 9
    2.4 紫外/可見吸收光譜於水質量測之應用 ................................................... 11
    2.5 光譜分析方法 ............................................................................................ 12
    第三章 研究方法 ................................................................................................ 15
    3.1 研究流程與內容 ........................................................................................ 15
    3.2 研究材料與設備 ........................................................................................ 17
    3.2.1 水樣前處理 ......................................................................................... 17
    3.2.2 水質特性分析項目與水質分析設備 ................................................. 17
    3.2.2.1 分光光度計 ...................................................................................... 18
    3.2.2.2 粒徑分析儀 ...................................................................................... 19
    3.3 分光光度計硬體測試 ................................................................................ 19
    3.3.1 硬體測試 ............................................................................................. 19
    3.3.2 吸收光譜資料前處理 ......................................................................... 20
    3.4 SS 與COD 濃度推估模式之建立 ............................................................. 21
    3.5 不同SS 粒徑對COD 濃度推估模式之建立 ........................................... 23
    第四章 結果與討論 ............................................................................................ 24
    4.1 硬體測試結果 ............................................................................................ 24
    4.1.1 分光光源穩定性分析 ......................................................................... 24
    4.1.2 去離子水吸收量測穩定性分析 ......................................................... 25
    4.1.3 小結 ..................................................................................................... 27
    4.2 SS 濃度對UV/VIS 吸收光譜影響之探討 ................................................ 28
    4.2.1SS 濃度對UV/VIS 吸收光譜影響分析結果 ...................................... 28
    4.2.2 小結 ..................................................................................................... 38
    4.3 UV/VIS 吸收光譜建立SS 濃度推估模式 ............................................. 39
    4.3.1 單一波長吸收光譜量測SS 濃度之結果 .......................................... 39
    4.3.2 多波長吸收光譜量測SS 濃度之結果 .............................................. 44
    4.3.3 小結 ..................................................................................................... 49
    4.4 UV/VIS 吸收光譜建立COD 濃度推估模式 ......................................... 49
    4.4.1 利用單一波長吸收光譜量測COD 濃度之結果 .............................. 50
    4.4.2 多波長吸收光譜量測COD 濃度之結果 .......................................... 61
    4.4.3 小結 ..................................................................................................... 65
    4.5 不同粒徑SS 對COD 濃度之干擾探討 ................................................... 66
    4.5.1 不同粒徑SS 對COD 濃度之干擾分析結果 .................................... 66
    4.5.2 小結 ..................................................................................................... 70
    第五章 結論與建議 ............................................................................................ 71
    5.1 結論 ............................................................................................................ 71
    5.2 建議 ............................................................................................................ 72
    參考文獻 .............................................................................................................. 73
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    Advisor
  • Liaw-Shu Liang(廖述良)
  • Files
  • 953206003.pdf
  • approve immediately
    Date of Submission 2009-03-31

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