工業排放廢水回收再利用是一個重要的策略，其可減少水資源消耗與提升其利用率。然而針對三級處理後之排放水進行水回收再利用仍有些問題需要克服，特別於薄膜處理時之阻塞問題。
為探討工業廢水回收，本研究針對兩處工業廢水處理廠(高雄市之林園與楠梓加工區)出流水有機物(effluent organic matter, EfOM)之處理進行研究，評估以臭氧結合雙氧水之高級氧化後、加上BioNET程序效率及/或UF薄膜過濾，處理水之EfOM特性變化，並以螢光光譜儀與 (flourescence excitation and emission spectroscopy, FEEMs)與分子量層析儀分析鑑定。
本研究首先針對目標水廠出水EfOM特性分析，結果顯示，在有機物之親疏水性特性，林園SUVA值高於楠梓；螢光光譜分析結果顯示林園含較高之腐植質，而楠梓則含較多之芳香蛋白質。由此可見，林園之EfOM之有機物特性主要以疏水性為主，而楠梓則以親水性為主。以AOP程序之臭氧結果雙氧水進行有EfOM氧化效能評估，結果顯示，氧化可將大分子之有機物氧化成小分子有機物；但林園之廢水則需臭氧劑量高於150 O3-mg/L才有效果，因此若擬以此廢水進行AOP處理，則需要較高之成本。為提升生物處理BioNET程序，以AOP將難生物降解之大分子量氧化成小分子量，由結果顯示林園之EfOM物質於BioNET程序不論之否有經氧化，均會導致微生物衰亡而釋出有機物。而楠梓水則有利於有生物處理，主因為其水特性為直鏈結構之親水性EfOM。而經由AOP程序雖不能提升BioNET生物降解能力，但對於UF薄膜阻塞控制可有效的幫助。

Industrial wastewater reclamation is an important strategy for reducing freshwater consumption and improving water reuse. However, reuse of treated wastewater has caused serious operation problems. It was found that secondary and tertiary effluent contained high concentration of effluent organic matter (EfOM), leading to membrane fouling issue. To evaluate the properties of EfOM in different effluents, including water treated with advanced oxidation processes (AOP), biological processes (BioNET) and ultrafiltration (UF), flourescence excitation and emission spectroscopy (FEEMs) and high pressure size exclusion chromatography (HPSEC) were employed for the analysis. Water samples were taken from two wastewater treatment plants (WWTPs), Linyuan and Nanzi WWTPs, and analyzed with the two methods. Linyuan samples were found to have higher humics and more hydrophibic than those for Nanzi samples. For Nanzi samples, they were found to be dominated by aromatic protein II fraction coming from biological activity. The AOP treatment using ozone and ozone/hydrogen peroxide in this study was effective to remove large molecule EfOM (LM-EfOM) when applied in Nanzi sample with small dosage. However, it was not effective for Linyuan samples. The BioNET treatment in this study was effective to remove LM-EfOM only for Nanzi sample. Flux declination is decreased when applied ozone and decreased following with oxidant dosage in UF system. Moreover, biopolymer is the highest fraction to be removed by UF, which is the main cause for flux reduction.

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