改良型電催化Fenton法處理TFT－LCD製造業廢水案例

Treatment of Thin Film Transistor Liquid Crystal Display Wastes by Electrocoagulation / Electro-Fenton Method

金光祖(K. T. Kin) ； 黃文正(W. J. Huang) ； 董瑞卿(R. C. Don) ； 楊介文(J. W. Yang)

《鑛冶：中國鑛冶工程學會會刊》 50卷3期 (2006/09) Pp. 129-135

https://doi.org/10.30069/MM.200609_50(3).0014

摘要

根據行政院挑戰2008國家發展重點計畫中的兩兆之一的影像顯示器產業相對高的需水量，探討改良型電催化Fenton法對奇美一廠有機揮發物洗滌塔及染料廢水的有機物去除的成效。利用實驗設計法探討反應時的pH、H_2O_2含量、電流及極釋鐵量等，對有機物去除的效率，發現以一段式反應當溶液中H_2O_2為15ml，pH為1.5，在電流為1A條件下，有機揮發物洗滌塔及染料廢水中的COD值分別由〜900mg／L及～800mg／L降低至～120mg／L及210mg／L。H_2O_2改以分批加入方式反應，在總反應時間為30min內，可使此兩股水的COD分别降至～50mg／L及～80mg／L，總鐵含量小於1 mg／L，濁度小於1NTU，皆可符合放流標準。

關鍵字

薄膜電晶體液晶顯示器 ； 電催化分騰法 ； 高級氧化處理法

並列摘要

TFT-LCD maunfacturing is one of the most important industry in Taiwan, which consumes a large quantity of water in production process. In this study, we obtained the local scrubber and dye waste water from Chi Mei Corporation and treated by electrocoagulation / electro-fenton method. We used the DOE method to investigate the effect of pH, H_2O_2 concentration, electric current and iron content, on the organic removal. In our study, when efficiency 15ml of H_2O_2 were added in batche-type in waste water, and the pH and electric current were maintained 1.5 and 1A, respectively, the COD of local scrubber and dye waste water decreased from 900mg/ L and 800mg/L to 120mg/L and 210mg/L, respectively When the 15ml of H_2O_2 were continuously added in an total experimental time of 30 minutes, the COD in the treated local scrubber and dye waste water decreased to 50mg/L and 80mg/L, respectively. And the total iron content kept less than 1mg/L and turbidity less than 1NTU. Those index of the treated water did meet the effluent water standard.

並列關鍵字

Thin film transistor liquid crystal display ； electro- coagulation/electro-fenton method ； Advanced oxidation process