本文之主要目的為蒐集並分析國內彩色薄膜液晶顯示器(Thin Film
Transistor Liquid Crystal Display; TFT-LCD)、光電製造業有關使用溶劑使其產生的廢液、應用於含氮廢水處理後脫除氮素的成效；並探討添加廢光阻劑於廢水中的碳源再利用之影響。
本生物處理系統主要為處理高濃度之氨氮廢水1,600~1,800 m 3 (40~60 mg/L,85 kg/d as ammonua nitroge) 並利用廠內製程廢溶劑廢液 (3,500~4,000 mg/L, 2,100 kg/d as COD)及甲醇 (40%)作為生物所需之有機碳源，以廢溶劑作為碳源，除可減少購置外部碳源成本外，亦可一併解決廢溶劑廢液的處理。其中包括：蒸餾技術回收，焚化或與其他無機廢水混合處理後排放問題。生物系統試車運轉初期，將廢溶劑及甲醇添加於兼氧槽作為脫硝菌所需之有機碳源，其運轉結果顯示，脫硝菌優先利用甲醇而導致廢光阻劑廢液的COD分解不易，且廢光阻劑進流有機負荷 (600 m3 *3,500 mg/L= 2,100 kg/d)造成兼氧槽生物抑制，導致系統放流水之TOC及COD濃度持續上升。重新調整甲醇與廢溶劑於兼氧槽之負荷分配比例，分別為甲醇3 m3 / (廢溶劑)0 m3 → 慢慢調降至甲醇1 m3 / 逐步增加(廢溶劑) 600 m3進行測試，經持續進行生物馴養及試車後，系統可穩定運轉做廢水回收且放流水之相關檢測項目皆可符合排放標準。

生物處理系統除了需花較長時間觀察及馴養外，更需嚴格管控好氧槽之pH、DO、MLVSS、SRT、HRT及兼氧槽之 pH、ORP、C/N及MLVSS等操作參數，以使硝化菌及脫硝菌可達最大處理效果，目前本生物處理系統已穩定運轉且放流水之氨氮濃度< 0.5 mg/L、硝酸鹽氮濃度< 10 mg/L、TOC濃度< 40 mg/L、COD濃度 < 200 mg/L，符合園區放流水納管標準。生物處理的出流水水質與污泥沉降性密切相關，如當污泥膨化時，其便遭遇很大之挑戰。近幾年為了維護天然水資源與避免其過度浪費使用，進而提升放流水標準及重視水回收再利用的觀念。MBR薄膜生物反應器乃是結合了生物處理及薄膜分離的處理技術，其在國內多家科技廠中已快速的發展並有效的取代傳統的生物處理系統，大幅提升生物處理效能，使其處理後的出流水達到可回收的要求，水質中的懸浮固體物及 BOD5 均小於5 mg/L，濁度低於1 NTU。使得入水水質達到後續處理回收單元，活性碳塔ACF、逆滲透RO處理所要求的水質及標準並減輕其單元的運轉負荷，藉由新興的MBR廢水處理技術的設置，每天達成生物處理後廢水回收再利用2,000 m3，減少自來水的使用量，廢水回收再利用除了對社會、經濟和生態環境，產生了無形的效益外也降低了水資源供/給的處理費用，減少了污水排放相對應的排水工程的投資與運轉的處理費用，也改善了生態環境與促進社會多項的經濟發展，並且保障人體健康減少疾病的危害，增加了其他產業的供水量，避免缺水所造成的經濟損失。實際改善前/後，自來水用量減少了1600 m3 (回收率80%計算)，回收月效益為新台幣 720,000元/月，再加上廢溶劑取代甲醇作為替代碳源，每月可減少甲醇用藥量效益為新台幣 457,500元再扣除委外清運回收效益新台幣 180,000元，整體每月節省廢水回收、藥劑及清運費用為新台幣 997,500元。

The main purpose of this article is to collect and analyze the waste liquid produced by the use of solvents in the domestic color thin film liquid crystal display (TFT-LCD) and optoelectronic manufacturing industries, as the carbon source needed to remove the nitrogen source organisms in the wastewater. The use of waste solvents as carbon sources can not only reduce the cost of purchasing external carbon sources, but also solve the environmental and ecological impacts caused by waste liquid distillation technology recovery, incineration or mixed treatment with other inorganic wastewater. For subsequent waste water recycling and reuse, unit blockage can be reduced and the efficiency of waste water recycling can be improved.And the effluent guality meets the effluent control standards of the park.
At the same time, the MBR membrane bioreactor improves the problem of suspended sludge produced by the effluent water of organisms, which affects water quality, and achieves the potential of waste water recycling and reuse. Recycling 2000 m3 of wastewater after biological treatment is achieved every day, reducing the use of tap water. In addition to the benefits to the society, economy and ecological environment, it also reduces the cost of water resources treatment and reduces the investment and corresponding investment in sewage discharge.
Operation and treatment costs have also improved the ecological environment and promoted many economic developments in the society, and ensured human health to reduce the harm of diseases, increased water supply for other industries, and avoided economic losses caused by water shortages. The experimental test results reduce the daily consumption of tap water by 1600 m3, the monthly recovery benefit is NT$720,000/month, the reduction of methanol usage is NT$457,500/month, and the waste liquid removal fee is deducted NT$180,000. The overall monthly savings Waste water recycling, chemicals, and cleaning costs are NT $997,500.

1. Adav, S.Lee, D.J. and Lai, J.Y. " Enhanced biological denitrification of high concentration of nitrite with supplementary carbon source" Environmental Biotechnology 85, 773-778 (2010).
2. Cai,S., Cai,T.M.,Liu,S.Y.,Yang,Q.,He,J.,Chen,L.W.,Hu,J., " Biodegradation of N-methylpyrrolidone by Paracoccus sp. NMD-4 and its degradation pathway " Int. Biodeter. Biodegr. 93,(2014) 70–77.
3. Chun Heng Loh,Bing Wu , Liy Ge ,Chaozhi Pan,Rong Wang. "High-strength N-methyl-2-pyrrolidone-containing process wastewater treatment using sequencing batch reactor and membrane bioreactor: A feasibility study " (2018) 534-542.
4. Cheng Hou, Jinyou Chen,Xinbai Jiang, Dejin Zhang, Xiuyun Sun ,Jiansheng Li, Weiqing Han, Xiaodong Liu, Lianjun Wang."Enhanced anoxic biodegradation of pyridine coupled to nitrification in an inner loop anoxic/oxic-dynamic membrane bioreactor (A/O-DMBR)"Volume 267(2018) 626-633.
5. Ewa Liwarska-Bizukojća,Jacek Chojnackib, Małgorzata Klinka.b, Dorota Olejnika. " Effect of the type of the external carbon source on denitrification kinetics of wastewater " (2018) 143–150
6. Her,J.J.and Huang,J.S. " Influences of carbon source and C/N ratio on nitrate/nitrite denitrification and carbon breakthrough" Bioresource Technology 54,(1995) 45-51.
7. Hui.Yun BinLiang, De-YongKong, Hao-YiCheng, Zhi-LingLi,Ya-Bing.Gu, Hua-QunYin Ai-JieWan. " Polarity inversion of bioanode for biocathodic reduction of aromaticpollutants " Journal of Hazardous Materials 331 (2017) 280–28
8. H. L.Campbell and B.A.Striegib." Evaluation of N methylpyrrolidone and its oxidative products toxicity utilizing the microtox assay " Environ. Sci. Technol., vol. 33, pp. (1999) 1926–1930.
9. Haobo.Wu, QianqianSun, YingluSun, YukunZhou, JingWang, ChengHou,Xinbai Jiang,Xiaodong Liu,Jinyou Shen."Co-metabolic enhancement of 1H-1,2,4-triazole biodegradation through nitrification" Bioresource Technology Volume 271 (2019) 236-243.
10. Haixiang Li,Hua Lin,Xiaoyin Xu,Renyong Jia,Siqing Xi "Dynamic response of biofilm microbial ecology to para-chloronitrobenzene biodegradation in a hydrogen-based, denitrifying and sulfate-reducing membrane biofilm reactor " Volume 643,(2018) 842-849
11. Jialing Tanga.b,Xiaochang.Wangb.c.d,Yisong Hub,Yunhui Pua , Jin Huanga, Huu Hao Ngoe, Yonggang Zenga, Yuyou Li. " Nutrients removal performance and sludge properties using anaerobic fermentation slurry from food waste as an external carbon source for wastewater treatment" Bioresource Technology 271 (2019) 125–135.
12. Jialing Tanga, Xiaochang C. Wangb.c.d,Yisong Hub.c, Yunhui Pua, Jin Huanga Huu,Hao Ngoe, Yonggang Zenga, Yuyou Li. " Nitrogen removal enhancement using lactic acid fermentation products from food waste as external carbon sources: Performance and microbial communities " Bioresource Technology 256 (2018) 259–268.
13. Jing Wanga, Xiaolin Liua, Xinbai Jianga, Libin Zhanga, Cheng Houa,Guanyong Sua, Lianjun Wanga, Yang Mub, Jinyou Shena. " Nitrate stimulation of N-Methylpyrrolidone biodegradation by Paracoccus pantotrophus: Metabolite mechanism and Genomic characterization " Bioresource Technology 294 (2019).
14. Jiang,Dejin Zhang,Xiuyun, Sun.Jiansheng, Li.Weiqing Han.Xiaodong, LiuLianjun.Wang " Enhanced anoxic biodegradation of pyridine coupled to nitrification in aninner loop anoxic/oxic-dynamic membrane bioreactor (A/O-
DMBR)" Bioresource Technology 267 (2018).
15. Jinyou Shen,Shijing Wu,Haobo Wu, Xiaodong Liu ,Xiuyun Sun,Jiansheng Li,Lianjun Wang." Enhanced pyridine biodegradation under anoxic condition: The key role of nitrate as the electron acceptor " Volume 277,( 2015) 140-149
16. K.Czerwionka, J.Makinia, M.Kaszubowska, J.Majtacz and
M.Angowski. "Distillery wastes as external carbon sources for denitrification in municipal wastewater treatment plants Water " Science & Technology 2012
17. Karel Křížek,Jan Růžička,Markéta Julinová,Lucie Husárová,Josef Houser,Marie Dvořáčková,Petra Jančová. "N-methyl-2-pyrrolidone-degrading bacteria from activated sludge" Water Sci Technol 71- 5 (2015) 776–782.
18. Lee, N.M. and Welander, T. " The effect of different carbon sources on respiratory denitrification in biological wastewater treatment " Journal of fermentation and bioengineering 82, 277-285.(1996)
19. Mahdavianpour,Gholamreza, Moussavia, Mehrdad, Farrokhi,Mostafa,"Biodegradation and COD removal of p-Cresol in a denitrification baffled reactor: Performance evaluation and microbial community Process " Biochemistry Volume 69,June 2018, Pages 153-160
20. Peng,Y.Z.,Ma,Y.and Wang, S.Y. " Denitrification potential enhancement by addition of external carbon sources in a pre- denitrification process " Journal of Environmental Sciences 19, (2007) 284-289.
21. Qin Jian-Jun,Kekre Kiran Arun,Tao Guihe,Oo Maung Htun,Wai Maung Nyunt,Lee Ting Cui,Viswanath Bala,and Seah Harry. "New option of MBR-RO process for production of NEWater from domestic sewage" Journal of Membrane Science 272 ,(2006) 70–77.
22. Shijian Ge,Yongzhen Peng, Shuying Wang, Congcong Lu, Xu Cao, Yunpeng Zhu. " Nitrite accumulation under constant temperature in anoxic denitrification process: The effects of carbon sources and COD/NO3-N " Bioresource Technology 114 (2012) 137–143.
23. Shen,J.Y.,He,R.,Han,W.Q.,Sun,X.Y.,Li,J.S. and Wang,L.J.
" Biological denitrification of high-nitrate wastewater in a modified anoxic/oxic-membrane bioreactor (A/O-MBR)" Journal of Hazardous Materials 172,(2009) 595-600.
24. Solís-González, Lilianha Domínguez-Malfavón, Martín Vargas-Suárez, Itzel Gaytán, Miguel Ángel Cevallos, Luis Lozano, M. Javier Cruz-Gómez, Herminia Loza-Taveraa." Novel Metabolic Pathway for N-Methylpyrrolidone Degradation in Alicycliphilus sp" (2018).
25. Walter Den, Fu-Hsiang Ko, and Tiao-Yuan Huang, Fellow,
" IEEE Treatment of Organic Wastewater Discharged From Semiconductor Manufacturing Process by Ultraviolet/Hydrogen Peroxide and Biodegradation" (2002).
26. Y.Fernández-Nava,E.Maranón,J.Soons,L.Castrillón " Denitrification of high nitrate concentration wastewater using alternative carbon sources " Journal of Hazardous Materials 173 682–688 (2010).
27. Y.Zhang, X.C.Wang, Z.Cheng, Y. Li, J. Tang. " Effect of fermentation liquid from food waste as a carbon source for enhancing denitrification in wastewater treatment " Chemosphere, 144 (2016) 689–696.
28. Zehua Huang, Xiaohong Che,Mingzhi Huang,Jujun Ruan. " Degradation behavior of dimethyl phthalate in an anaerobic/anoxic/oxic system"Volume 184, Part 2 (2016) 281-288
39.中部科學工業園" 科技部中部科學工業園區管理局(臺中園區)污下水道系統納管水質標準及使用費之水質分級、分級費率、計算公式、收費項目及單價表 ", 2015.
29.王根樹 "以活性碳吸附水中背景有機物之研究"，行政院國家科學委員會專題研究計畫成果報告, 2001.
30.台灣環境資源永續發展研討會, 楊炎勝、朱志弘、鄭承熙、沈克鵬 "廢光阻劑回收設備之效益提升" ,工業技術研究院能源與環境研究所, 2007.
31.朱敬平 " 廢水處理技術與操作實務 "財團法人中興工程顧問社環境工程研究中心, 2015.
32.李珮芸 "外加碳源對生物薄膜反應器處理低碳氮比高科技業廢水之影響 "碩士論文,國立交通大學 環境工程研究所,2010.
33.林昱宏 "製程廢水回收處理系統之經濟效益研究 " 碩士論文, 國立交通大學工學院產業安全與防災學程 , 2011.
34.林宏霖 "探討生物分解光電產業製程廢水之反應動力特性研究" 碩士論文,國立成功大學環境工程研究所, 2006.
35.林依鈴、吳銘昌、蔡庭玉 "TMAH 於好氧厭氧生物處理技術之應用" 台灣美光記憶體股份有限公司.
36.吳政龍 "氫氧化四甲基銨引起之中毒及其續發症診斷認定參考指引"2010
37.黃淑君 "不織布薄膜反應槽好氧生物分解TFT-LCD製程有機廢水程序功能及生態變化之研究" 碩士論文, 國立成功大學環境工程研究所, 2006.
38.黃筱涵 "以生物處理法降解含 TMAH 廢水之研究 " 碩士論文,國立台灣大學,2009.
39.陳廷光、倪振鴻、陳重男 "生物薄膜與逆滲透程序應用於TFT-LCD製程廢水處理與再利用" 工業污染防治, 第89期, 2004.
40.陳家福、李展能、劉保文、黃良銘 "利用生物降解 "中華民國環境工程學會 2007 廢水處理技術研討會,中華醫事科技大學,國立成功大學,2007。
41.陳賢焜、林立斌、陳宏瑋、洪鈺清、胡太龢、 黃良銘，" 厭氧污泥處理光電廢水之 TMAH 及 清潔劑 "中華民國環境工程學會 2009 廢水處理技術研討會,崑山科技大學、國立成功大學,2009.
42.陳俊勳 "TMAH 安全性及其防護 措施探討" 台北工安技術論（2007）。
43.國立交通大學奈米元件實驗室,第十二卷第二期," 廢溶劑回收系統於TFT-LCD製造廠之應用"
44.馮育澤 " TFT-LCD製程廢水回收系統薄膜阻塞問題研究" 碩士論文, 國立成功大學環境工程研究所, 2012.
45.歐陽嶠暉、莊順興、曾淳錚 (2008) "科學園區污水處理之展望",中華技術,第42期,42-49.
46.范姜仁茂、莊連春、曾迪華、廖述良、游勝傑、梁德明 (2009) "薄膜生物反應器 (MBR) 於廢水處理之技術評析",工業污染防治,第 109 期,49-96.
47.羅煌木、張雅閔、吳佳晋、沈甯堯、吳美瑩、 唐皓鈞 "科學園區污水處理廠中 TMAH水質特性之研究 " 中華民國環境工程學會,朝陽科技大學廢水處理技術研討會,2013.