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Fe²⁺/UV催化臭氧降解腈纶废水影响因素

Study on influence factors of acrylic fiber wastewater degradation by Fe²⁺/UV catalysis ozonation system

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【Author】 YU Zhongchen1,WANG Song2,3,Lü Bingnan4,WANG Qiuyan5,WU Zengyan6,HE Jianping7,GUO Ying1(1 School of Civil & Architecture Engineering,Daqing Petroleum Institute,Daqing 163318,Heilongjiang,China;2 School of Earth Sciences,Daqing Petroleum Institute,Daqing 163318,Heilongjiang,China;3 Dept.of Applied Chemistry,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China;4 School of Municipal and Environment Engineering,Harbin Institute of Technology,Harbin 150090,Heilongjiang,China;5 Oil Production Plant No.1,Daqing Oilfield Co.,Ltd.,Daqing 163113,Heilongjiang,China;6 Water & Gas Plant,Daqing PetroChemical Company,Daqing 163714,Heilongjiang,China;7 Shaanxi Hualing Real Estate Co.,Ltd.,Xi’an 710065,Shaanxi,China)

【机构】大庆石油学院土木建筑工程学院；大庆石油学院地球科学学院；哈尔滨工业大学应用化学系；哈尔滨工业大学市政环境工程学院；大庆油田有限责任公司第一采油厂；大庆石化公司水气厂；陕西华岭房地产有限公司；

【摘要】研究了不同催化臭氧体系(O3、UV/O3和Fe2+/UV/O3)对腈纶废水的降解特性,Fe2+/UV催化臭氧表现出极强的COD降解性能。详细分析了pH值、Fe2+浓度、气相臭氧浓度和光强各因素对Fe2+/UV催化臭氧降解性能的影响规律。结果表明,溶液初始pH值对其降解性能无影响,而Fe2+浓度、气相臭氧浓度和光强影响较大。当Fe2+的优化浓度为70～80mg/L,气相臭氧浓度为20～30mg/L和光量子流密度为8.62×10-12Einstein时,催化效果最强,COD去除率最高(72%～78%)。经红外光谱测试分析,废水中有机物基团经Fe2+/UV催化臭氧降解后减弱或消失,其生物降解性得到改善。更多还原

【Abstract】 The oxidation degradation of acrylic fibers wastewater was studied with different catalysis ozonation systems(O3,UV/O3 and Fe2+/UV/O3).The Fe2+/UV catalysis ozonation system showed strong oxidation capacity.The influence on oxidation capacity was discussed,such as pH,Fe2+ concentration,gas phase ozone concentration and light intensity.The result showed that the initial solution pH had no effect on oxidation capacity,but other factors had significant effect.With optimal Fe2+ concentration 70～ 80mg/L,gas phase ozone concentration 20～30mg/L,photon flux density 8.62×10-12 Einstein,catalysis performance was the best,and COD removal rate was the highest(70%～80% COD removal).According to infrared spectrometry analysis,organic components became weak or disappeared by the Fe2+/UV catalysis ozonation system,and biological degradability of acrylic fiber wastewater was improved greatly.更多还原