Treatment of thin film transistor-liquid crystal display (TFT-LCD) wastewater by the electro-Fenton process

doi:10.1016/j.seppur.2015.02.039

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標題:	Treatment of thin film transistor-liquid crystal display (TFT-LCD) wastewater by the electro-Fenton process
作者:	Colades, James I. de Luna, Mark Daniel G. Su, Chia-Chi Lu, Ming-Chun
貢獻者:	環境資源管理系
關鍵字:	TFT-LCD Wastewater Dimethyl sulfoxide Response surface methodology Electro-Fenton
日期:	2015-05
上傳時間:	2016-04-19 19:06:33 (UTC+8)
出版者:	Elsevier Science Bv
摘要:	In this study, the electro-Fenton process was used to treat synthetic and actual TFT-LCD wastewaters. TFT-LCD wastewater contains high amounts of organic solvents mainly dimethyl sulfoxide (DMSO). For the simulated TFT-LCD wastewater, response surface methodology (RSM) was used to fit experimental data to empirical models with the responses, %DMSO removal and H2O2 efficiency (Delta[H2O2]/ Delta[DMSO]). Among the studied independent variables that affect DMSO degradation efficiency, Fe2+ loading was found to be the most dominant, then pH and, H2O2 loading being the least significant. DMSO removal and H2O2 efficiency improved with high Fe2+ loading, low H2O2 loading and low solution pH. The observed decrease in pH was attributed to the production of acidic degradation intermediates of DMSO. At 5 mM DMSO loading, treatment efficiency reached 100% DMSO removal. The electro-Fenton technology was also applied to real TFT-LCD wastewater resulting in TOC and COD removals of 68% and 79%, respectively.
關聯:	Separation And Purification Technology, v.145 n., pp.104-112
顯示於類別:	[環境資源管理系(所)] 期刊論文

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