紫外高级氧化技术去除2-MIB的研究与应用

Research and application on removal of dimethylisoborneol by UV advanced oxidation technology

近些年来,人类活动产生大量农业、市政、工业等污废水。排放此类废水会向水中释放大量的氮、磷等营养盐,使水体发生富营养化,藻类迅速繁殖,极易产生嗅味物质。二甲基异莰醇(2-MIB)等一系列嗅味物质对饮用水品质及人类健康造成一定影响,其产生的土霉味令人感觉不悦,引发供水危机。因此,有效去除2-MIB等嗅味物质对于提升水质具有重要意义。基于紫外光的高级氧化技术具有高效、环保等优点,用于处理2-MIB等嗅味物质时具有广阔的研究前景。阐述了目前亟待解决的饮用水嗅味问题,综述了UV/H_(2)O_(2)、UV/Cl、UV/PS、UV/O_(3)等高级氧化组合技术去除2-MIB的研究进展,以及在实际工程中的应用情况,提出高级氧化技术去除水中嗅味物质未来的研究方向以及需要解决的问题。

In recent years,human activities have produced large amounts of agricultural,municipal and industrial wastewater.Discharge of such wastewater releases large amounts of nutrients such as nitrogen and phosphorus into the water,causing water eutrophication and rapid algal propagation,which can easily produce odorous substances.Dimethylisoborneol(2-MIB)and a series of odorous substances have a certain impact on the quality of drinking water and human health,and its mildewy smell is unpleasant and causes water supply crisis.Therefore,effective removal of 2-MIB and other odor substances is of great significance for improving water quality.The advanced oxidation technology based on ultraviolet light has the advantages of high efficiency and environmental protection,and has a broad research prospect for the treatment of 2-MIB and other odorous substances.The current problem of odor substances in drinking water was described.The research progress of UV/H_(2)O_(2),UV/Cl,UV/PS,UV/O_(3) and other advanced oxidation combined technologies to remove 2-MIB,as well as their applications in practical engineering were reviewed.And the future research directions and problems need to be solved for the removal of odor substances in water by advanced oxidation technologies were proposed.