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題 名 | Treatment of Alkaline Wastewater from Cleaning of Color Filter Glass |
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作 者 | Ji, Dar-ren; Chang, Chia-chi; Chang, Ching-yuan; Tu, Wen-kai; Tseng, Jyi-yeong; Chiu, Chun-yu; Chen, Yi-hung; Chang, Chiung-fen; Hsieh, Kuo-huang; Liu, Wen-bin; | 書刊名 | Journal of the Taiwan Institute of Chemical Engineers |
卷 期 | 40:6 2009.11[民98.11] |
頁 次 | 頁663-668 |
分類號 | 460.024 |
關鍵詞 | Filter filtration; FF; Ozone; Ultra-violet; UV; Advanced oxidation processes; AOPs; Alkaline; Acrylic resin; Color filter; |
語 文 | 英文(English) |
英文摘要 | Abstract The treatment of alkaline wastewater (noted as A-water) from cleaning of color filter glass (CFG) was studied. The A-water contains hydroxide ion and dissolved acrylic resin of high concentrations of 4 M and 80,446 mg/L chemical oxygen demand (COD), respectively. The suspended solid (SS) of A-water was removed via filtration. The effluent after filtration process (noted as F-water) was further treated via advanced oxidation processes (AOPs) such as ozonation (OZ), OZ/ultra-violet (UV) irradiation (OZ/UV) and catalytic OZ/UV with Pt/γ-Al2O3 (OZ/UV/Pt). The filtration process employing 0.5 μm PTFE filter yielded the F-water containing 55,749 mg/L COD with the removal efficiency of COD (ηC) relative to A-water (ηC,FA) of about 30.7% for treating the A-water. It was noted that about 33.7% COD of A-water can be also removed using the gravity sedimentation (GS). However, the GS time was as long as about 7.5 h. The values of ηC relative to F-water (ηC,OF) via AOPs for treating the F-water were about 8–12% at the reaction time of 60 h. The overall ηC relative to A-water (ηC,OA) can reach about 36.2–39.1% after filtration process and AOPs. |
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