近年來益達胺因潛在性對蜜蜂生態的危害在國際間受到高度的關注，而益達胺亦為台灣常見的殺蟲劑，即使是低濃度的殘留在環境中，對生物也具有神經毒性，且一般的生物處理法無法進行處理，所以對應的處理方法便是刻不容緩的研究對象。為解決農藥汙水的問題，本研究以UVC (254 nm)紫外光催化過硫酸鹽與雙氧水 (UV-S2O82-與UV-H2O2)，產生硫酸根自由基與氫氧自由基，以氧化市售農藥益達胺的合成廢水(除了益達胺，還含有NMP、DMA、MeOH等有機物，TOC0 = 497 ppm )，探討不同氧化劑劑量、初始酸鹼值、光強度與亞鐵劑量對處理效果的影響，在最適化處理條件下(UV-S2O82-：[S2O82-] = 120 mM、light intensity = 6.4 mW/cm2、pHi = 6.8 0.1、[Fe2+] = 0 mM；UV-H2O2：[H2O2] = 90mM、light intensity = 6.4 mW/cm2、pH =3 0.2、[Fe2+] = 0.178 mM)，UV-S2O82-與UV-H2O2分別達到97%與83%的總有機碳去除率(TOCr)，而礦化過程中，無機氮的釋出以氨氮為主，硝酸氮次之，根據無機氮與有機碳隨時間的濃度變化，顯示在某些條件下，即使已達到相當高的TOCr，仍有少量的有機氮存在於水體。

Wastewaters containing imidacloprid (IMI), a widely used pesticide, is confirmed to potentially impact the bee populations. This study used two photochemical oxidation processes, including UV-H2O2, and UV-S2O82-, to treat the synthetic wastewater which is composed of IMI, dimethylacetamide, N-methyl-2-pyrrolidone, and methanol (TOC0 = 497 ppm). UV irradiation (254nm, 6.4 mW/cm2) was used to activate H2O2 and S2O82- to produce hydroxyl and sulfate radicals. 58% and 97% of TOC were reduced by UV-H2O2 and UV-S2O82- (in 4 hour), respectively, using 150 mM oxidant. The inorganic nitrogen such as NH4+ and NO3- were released during the process. In some cases, the organic nitrogenous species were supposed to exist in the effluent based on unbalance inorganic nitrogen production, even though removals of TOC were high.

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