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首页> 外文期刊>Water Research >Comparison of UV/hydrogen peroxide, potassium ferrate(VI), and ozone in oxidizing the organic fraction of oil sands process-affected water (OSPW)
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Comparison of UV/hydrogen peroxide, potassium ferrate(VI), and ozone in oxidizing the organic fraction of oil sands process-affected water (OSPW)

机译：紫外线/过氧化氢，高铁酸钾（VI）和臭氧在氧化油砂工艺影响水（OSPW）有机部分中的比较

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The efficiency of three different oxidation processes, UV/H2O2 oxidation, ferrate(VI) oxidation, and ozonation with and without hydroxyl radical (center dot OH) scavenger tert-butyl alcohol (TBA) on the removal of organic compounds from oil sands process-affected water (OSPW) was investigated and compared. The removal of aromatics and naphthenic acids (NAs) was explored by synchronous fluorescence spectra (SFS), ion mobility spectra (IMS), proton and carbon nuclear magnetic resonance (H-1 and C-13 NMR), and ultra-performance liquid chromatography coupled with time-of-flight mass spectrometry (UPLC TOFMS). UV/H2O2 oxidation occurred through radical reaction and photolysis, transforming one-ring, two ring, and three-ring fluorescing aromatics simultaneously and achieving 42.4% of classical NAs removal at 2.0 mM H2O2 and 950 mJ/cm(2) UV dose provided with medium pressure mercury lamp. Ferrate(VI) oxidation exhibited high selectivity, preferentially removing two-ring and three-ring fluorescing aromatics, sulfur-containing NAs (NAs + S), and NM with high carbon and high hydrogen deficiency. At 2.0 mM Fe(VI), 46.7% of classical NAs was removed. Ozonation achieved almost complete removal of fluorescing aromatics, NM + S, and classical NAs (NAs with two oxygen atoms) at the dose of 2.0 mM O-3. Both molecular ozone reaction and center dot OH reaction were important pathways in transforming the organics in OSPW as supported by ozonation performance with and without TBA. H-1 NMR analyses further confirmed the removal of aromatics and NM both qualitatively and quantitatively. All the three oxidation processes reduced the acute toxicity towards Vibrio fischeri and on goldfish primary kidney macrophages (PKMs), with ozonation being the most efficient. (c) 2016 Elsevier Ltd.
机译：三种不同的氧化过程（UV / H2O2氧化，高铁酸盐（VI）氧化）和有无羟基自由基（中心点OH）清除剂叔丁醇（TBA）的臭氧去除油砂过程中有机化合物的效率-对受影响的水（OSPW）进行了调查和比较。通过同步荧光光谱（SFS），离子迁移谱（IMS），质子和碳核磁共振（H-1和C-13 NMR）以及超高效液相色谱法研究了芳烃和环烷酸（NAs）的去除结合飞行时间质谱（UPLC TOFMS）。 UV / H2O2氧化是通过自由基反应和光解作用发生的，同时转化了一个，两个和三个环的荧光芳香族化合物，并在2.0 mM H2O2和950 mJ / cm（2）的紫外线剂量下实现了42.4％的经典NA去除率。中压汞灯。高铁酸盐（VI）的氧化显示出高选择性，优先去除具有高碳和高氢缺乏的二环和三环发荧光的芳族化合物，含硫的NAs（NAs + S）和NM。在2.0 mM Fe（VI）下，去除了46.7％的经典NA。臭氧化可以在2.0 mM O-3的剂量下几乎完全去除发荧光的芳香族化合物，NM + S和经典的NA（具有两个氧原子的NA）。分子臭氧反应和中心点OH反应都是转化OSPW中有机物的重要途径，这要归功于有和没有TBA的臭氧化性能。 H-1 NMR分析进一步确定了定性和定量去除芳族化合物和NM的能力。所有这三个氧化过程均降低了对费氏弧菌和金鱼原代肾巨噬细胞（PKMs）的急性毒性，其中臭氧氧化作用最为有效。 （c）2016爱思唯尔有限公司

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