| 研究生: |
王弘柚 Wang, Hun-You |
|---|---|
| 論文名稱: |
氫氟酸廢水處理系統最佳化操作參數之建立 Optimum Operation Parameters for an HF Wastewater Treatment System |
| 指導教授: |
吳植森
Wu, Chih-Sen 利德江 Li, Der-Chiang |
| 學位類別: |
碩士 Master |
| 系所名稱: |
管理學院 - 工業與資訊管理學系碩士在職專班 Department of Industrial and Information Management (on the job class) |
| 論文出版年: | 2009 |
| 畢業學年度: | 97 |
| 語文別: | 中文 |
| 論文頁數: | 74 |
| 中文關鍵詞: | 反應曲面法 、廢水處理 、氫氟酸 、田口方法 |
| 外文關鍵詞: | hydrofluoric acid (HF), wastewater treatment, Response Surface Methodology (RSM), Taguchi Method |
| 相關次數: | 點閱:115 下載:7 |
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本文研究半導體產業中氫氟酸廢水處理系統處理之現況,
以台灣某半導體廠為例探討廠內氫氟酸處理現況,針對目前系
統操作之問題點,提出其中系統操作方式為藉由儀器量測之pH值
與氟離子濃度來判斷加藥量,由於控制加藥之方式容易使系統有
過量加藥之情形,造成廢水處理成本之增加。
本研究之目標為氫氟酸處理系統操作參數之最佳化,
以田口方法結合反應曲面法,利用直交表之配置、S/N比反應表、
S/N比反應圖分析、變異數分析等技術建立較佳之操作參數,並
透過結合反應曲面法,配適等效之反應曲面模型,在以節省藥劑
成本之條件下,獲得最佳化之操作參數。
由實驗所得之最佳化操作參數,經驗證實驗證明該組參數可
使品質特性合乎目標,並可有效的降低系統化學品消耗量達13%,
長期下來可有效降低整個氫氟酸處理系統的操作成本,並維持
系統操作之穩定性。
This study is intended to solve the problems of an
hydrofluoric acid (HF) wastewater treatment system in
the semiconductor industry. A wastewater treatment
factory of semiconductor industry in Taiwan was used
to research the operational condition of the system.
As the quantity of chemicals was controlled by the pH
meter and the fluorine ion meter, it was discovered
that the control mode easily resulted in excess use
of chemicals. As a result, the cost of the system
increased easily.
The goal of this study is to find out the optimum
operation parameters for an HF wastewater treatment system.
By using Taguchi Method, Taguchi’s orthogonal arrays,
S/N ratio response forms, S/N ratio response plots, and
analysis of variance (ANOVA), better operation parameters
could be determined. Combining the Taguchi method and
Response Surface Methodology (RSM), a better RSM model
that described the equal effect could be matched. Thus,
the optimum operation parameters with the least cost of
chemicals could be obtained.
By using the optimum operation parameters, it was
proved that the parameters could determine the quality
target. The cost of chemicals was significantly decreased
by 13%. This could bring great benefit to the industry
in the long run.
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