| 摘要(英) |
The main purpose of this study was to investigate the fluoride wastewater in the order of different calcium chloride dosing of calcium fluoride crystal structure and configuration differences, fixed calcium fluoride than 1.0, the pH value of 7.0, precipitated calcium fluoride, chemical coagulation and sedimentation way, and add different doses of coagulant aid coagulant, to investigate the optimal treatment dose, the density of the particles of calcium fluoride crystal flocculation after coagulation carrier the size of the gap, the crystal grain nuclear re-growth factors also affect the size of the calcium fluoride crystals with fluoride ion removal efficiency.
The experimental results show that the first plus calcium chloride and then adjusted to pH water samples clear than the first pH adjustment coupled with calcium chloride, and by electron microscopy (SEM) images shown before adding calcium chloride and then adjusted to pH fluoride calcium crystal structure is real dense complete and can be found at the bottom of the stirred tank crystals generated. Better fluoride ion removal coagulant, polyacrylic acid (PAA) in a dose of 10 mg / L, then there is a significant downward trend in water samples of suspended solids (SS) and turbidity; using poly aluminum chloride (PACl) as coagulant, at a dose of 15 mg / L may also better fluoride ion removal, water samples poly aluminum chloride to remove the colloidal stability of the main mechanism for the adsorption and electrical and the precipitation mix In addition, while the precipitation mix in addition to aluminum hydroxide floc formation and to increase the chance of collision of the particles, when the particles are large enough to cause the particles flocculation together and settlement, in order to increase the removal efficiency.
To handle most of the fluorine-containing wastewater PACl with PAA, first PACl to stabilize, and then add the PAA floc effective to grow, to increase the performance of solid-liquid separation in water samples, so that it can effectively precipitate, suspended solids and turbidity degree, there is a significant downward trend, this trend is caused by the the water samples PAA or PACl Pharmacy segment dosing the floc formation from electrical and bridging mechanism cohesion into precipitation mix in addition to capturing the form. |
| 參考文獻 |
1. 楊瑞臨，2011半導體年鑑，經濟部技術處，產業技術知識服務計畫，臺北（2011）。
2. 行政院主計總處，行政院主計總處綜合統計處，國民所得統計，臺北（2012）。
3. 張明發，國立台灣科技大學化工所碩士論文，半導體業含氟廢水處理之研 究，臺北（2003）。
4. 宇加科技股份有限公司，http://www.unionplus.com.tw/quality-ic.html
5. 宇加科技股份有限公司，http://www.unionplus.com.tw/quality-osc.html
6. 行政院環境保署，水污染防治法放流水標準，臺北（2011）。
7. 阮國棟，工業污染防治第29期，氟化物之污染特性及處理技術，臺北（1989）。
8. 楊國卿，國立中央大學環工所碩士論文，印刷電路板業廢水處理系統化學混凝效能提升之研究，中壢(2006)。
9. 經濟部工業局，廢水處理單元設計及異常對策參考手冊(更新版)，臺北(2006)。
10. Heinzmann,B.,“Coagulation and flocculation of stormwater from a separate sewer system – anew possibility for enhanced treatment”, Wat.Sci.Tech. 29(12) , pp.267-27（1994）
11. 卓靖強，國立台灣科技大學化工所碩士論文，，以聚電解質絮凝半導體廠廢氟化鈣之研究，臺北(2007)。
12. 劉志成，「以溶解空氣浮除法處理半導體業含氟廢水」，工程科技通訊，第61期，第133-137頁(2002)。
13. 李茂松，「半導體工業中含氟廢水處理技術發展」，化工技術，第81期，第230-239頁 (1999) 。
14. Chang ,M.F.and Liu,J.C.“Precipitation Removal of Fluoride from Semiconductor Wastewater”,Journal of Environmental Engineering, 133(4),419-425(2007)
15. Randtks,S.J.“Organic Contaminant Removal by Coagulation and Related Process Combinations J.awwa.,Vol.80,No.3,（1988）
16. Amirtharajah,A.and O’Melia,C.R.,“Coagulation and Flocculation.”,Water Quality and Treatment 5th Ed.,McGraw-Hill,Chap6,New York（1999）
17. 張晉、劉力，水處理工程(下)，鼎茂圖書出版股份有限公司，pp.10-15，臺北（2010）。
18. Narayan S.T.Industrial Crystallization, Plenum Publish Corporation, New York
（1995）
19. Strick land-Constable R.F., Kinetics and Mechanism of Cryatallization Academic Press, London New York,（1968）
20. 陳寶琪，國立台灣大學化工所博士論文，微溶物係之沉澱與結晶，台北（2011）。
21. Nielsen A.E., Toft J.M., Electrolyte crtstal growth kinetics. J. of Crystal Growth.67,278-288, (1984）
22. Nielsen A.E., Electrolyte 67,278-88 crystal growth mechanisms. Journal of Crystal Growth. ,（1984）
23. 黃馨儀，廢水處理常用化學藥劑應用手冊，經濟部工業局，台北(1993)。
24. Metcalf & Eddy Wastewater Enginneering Treatment and Reuse 4 th edition., McGraw-Hill, New York（2003）
25. Stern,O.,“ Zur Theorie der, Elektrolytischem Doppelschicht”,Electro-chemistry, 30（1924）
26. Snoeyink,V.L. and Jenkins,D.,WATER Chemistry, John Wiley & Sons, New York,pp.262,(1982)
27. 高肇藩，給水工程，國立成功大學環工所，台南（1978）。
28. 日本共立理化學研究所，簡易水質離子測試包說明書，臺北（2010）。
29. 蘇登福，國立中央大學環工所碩士論文，化學沉澱法處理光電業含氟廢水之探討，中壢（2011）。
30. 黃淑芬，國立交通大學環工所碩士論文，氟系廢水中加鈣去氟之顆粒形成影響因子研究，新竹（2006）。
31. Stumm,W.and O’Melia, C.R., “ Stiuchiometry of Coagulation” J.Am. Water Works Assoc.,Vol.60,No5,pp.514(1968) |
[Endnote RIS 格式]
[相關文章]
[文章引用]
[完整記錄]
[館藏目錄]
[檢視]
plurk
funp
live
udn
HD
myshare
netvibes
friend
youpush
delicious
baidu
Google bookmarks
del.icio.us
hemidemi
facebook
twitter
google
reddit