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高级氧化技术处理难降解有机废水的研发趋势及实用化进展 总被引:10,自引:3,他引:7
工业生产活动产生的难降解有机废水需要有效处理,否则对生态环境和人类健康造成极大危害。高级氧化技术具有处理速率快、降解效率高、适用范围广等优点,是处理难降解有机废水最具应用前景的方法之一。但目前高级氧化技术仍存在高耗能、高成本等缺点,为了降低处理成本,近年来,以高级氧化技术为主结合生物处理方法的耦合/复合处理技术得到广泛研究。在综述高级氧化法处理难降解有机废水最新技术如等离子体高级氧化法、太阳光催化氧化和Bio-electro-Fenton氧化法等的基础上,重点介绍了高级氧化法复合处理技术和高级氧化法与生物法耦合处理技术,并结合高级氧化技术实用化发展方向,总结了复合/耦合高级氧化技术扩大化处理实例。本文还对高级氧化技术的研究方向和实用化的前景进行了展望。 相似文献
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《化工学报》2017,(5)
工业生产活动产生的难降解有机废水需要有效处理,否则对生态环境和人类健康造成极大危害。高级氧化技术具有处理速率快、降解效率高、适用范围广等优点,是处理难降解有机废水最具应用前景的方法之一。但目前高级氧化技术仍存在高耗能、高成本等缺点,为了降低处理成本,近年来,以高级氧化技术为主结合生物处理方法的耦合/复合处理技术得到广泛研究。在综述高级氧化法处理难降解有机废水最新技术如等离子体高级氧化法、太阳光催化氧化和Bio-electro-Fenton氧化法等的基础上,重点介绍了高级氧化法复合处理技术和高级氧化法与生物法耦合处理技术,并结合高级氧化技术实用化发展方向,总结了复合/耦合高级氧化技术扩大化处理实例。本文还对高级氧化技术的研究方向和实用化的前景进行了展望。 相似文献
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对难降解有机废水的处理技术,是目前水处理技术的重要研究课题之一。高级氧化法以其自身独有的特点日趋成为处理难降解有机废水的重要技术之一。介绍了高级氧化方法的特点和高级氧化法处理难降解有机废水的研究及应用现状,并阐述了高级氧化技术中的高级湿式氧化、臭氧氧化、Fenton试剂法、超声波氧化等重要高级氧化技术。通过高级氧化技术的研究和应用现状及现今存在的问题的分析,指出高级氧化技术工业化发展的方向。 相似文献
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含硫恶臭气体处理方法的研究进展 总被引:2,自引:0,他引:2
含硫恶臭气体因其嗅觉阈值低、涉及的行业广泛、毒性大而备受关注。主要的代表物为硫化氢、二硫化碳、硫醇、硫醚等。介绍了含硫恶臭气体的常规处理方法,如物理法,燃烧法、吸收法、吸附法等化学方法,还有近年来发展较快的光催化氧化技术、等离子体技术、生物脱臭技术、无极紫外辐射技术等新兴处理技术。对各种处理方法和技术的未来发展趋势进行了展望。 相似文献
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Emilia Otal Dionissios Mantzavinos Maria V. Delgado Rolf Hellenbrand Julian Lebrato Ian S. Metcalfe Andrew G. Livingston 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》1997,70(2):147-156
The treatment of a model wastewater containing polyethylene glycol (PEG) of molecular weight 10000 in an integrated wet air oxidation–aerobic oxidation process was investigated. Partial wet air oxidation under mild operating conditions was capable of converting the original polymer to lower molecular weight compounds, such as oligomers and short-chain organic acids. The effect of molecular weight on the aerobic biodegradability of polyethylene glycol was assessed by performing shake flasks experiments with various polyethylene glycols in a molecular weight range from 200–35000 and it was found that biodegradability generally decreased with increasing molecular weight. Aqueous solutions of PEG 10000 were subjected to continuous wet air oxidation at a temperature of 423 K and a residence time of 30 min and the oxidised effluents were then subjected to subsequent continuous aerobic oxidation at residence times varying between 0·5 and 4 days. Simultaneously, continuous aerobic oxidation experiments on solutions of PEG 10000 were performed and used to compare the efficiency of the integrated treatment process with that of the direct biological treatment. Partial pretreatment by wet air oxidation under mild operating conditions resulted in effluents whose biodegradation rates were significantly higher than those of the original, unoxidised wastewater, as assessed by total organic carbon (TOC) removal rates. The original wastewater was practically non-biodegradable at a 0·5-day residence time with direct biological treatment, while an 80% TOC removal was achieved when biological treatment was coupled with a preceding wet air oxidation step. Conversely, with a 4-day residence time for the direct biological treatment the original wastewater was only partially degradable with 60–70% TOC removal recorded; with the integrated treatment process at a 4-day residence time in the bioreactor the overall TOC removal was greater than 90%. © 1997 SCI 相似文献
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介绍了某食品公司肉类加工废水处理工程的工艺参数、调试和运行结果。采用二级生物接触氧化、过滤工艺处理,出水水质指标达到《污水综合排放标准》(GB8978-1996)二级标准。工程实践表明,该处理系统具有处理效果稳定、占地面积小、运行费用低等特点。 相似文献
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