Superior School of Chemical Engineering, National Polytechnic Institute of Mexico, Edif 7, UPALM, CP 07738 Mexico DF, Mexico.
J Environ Manage. 2012 Dec 30;113:545-51. doi: 10.1016/j.jenvman.2012.03.017. Epub 2012 Apr 10.
Anthracene decomposition in solid phase by conventional ozonation was investigated employing model and real soil samples. Reaction in a two-phase system (soil-ozone) and a three-phase system (soil-water-ozone) was studied. The total anthracene decomposition in the two studied systems (sand-ozone and burned soil-ozone) was obtained at 15 and 30 min of treatment by ozone, respectively, and the efficiency of ozonation was depended on the water content in treated soil samples. The anthracene degradation in an agricultural soil (free water) was carried up slower (only 30% after 90 min of ozonation), because the real solid samples content organic matter that provokes the additionally ozone consuming. The pre-ozonation of free anthracene agricultural soil depicts the content of the organic matter fraction, which have the ozone reactivity orders as aromatic>aliphatic>polar. In all cases, the ozonation by-products were identified partiality; the majority of by-products formatted react with ozone. Actually some of them were decomposed totally, while others were accumulated. Some products identified in all systems such as anthrone, 9,10-anthraquinone and phthalic acid, are less toxic than the anthracene.
采用模型和实际土壤样品研究了常规臭氧化在固相中的蒽分解。研究了两相体系（土壤-臭氧）和三相体系（土壤-水-臭氧）中的反应。在研究的两个体系（砂-臭氧和燃烧土-臭氧）中，在臭氧处理 15 和 30 分钟后分别获得了总蒽的分解，臭氧处理的效率取决于处理土壤样品中的含水量。在农业土壤（游离水）中，蒽的降解速度较慢（臭氧处理 90 分钟后仅为 30%），因为实际的固体样品中含有会引起额外臭氧消耗的有机物。游离蒽农业土壤的预臭氧化描述了有机物部分的含量，其臭氧反应性顺序为芳香族>脂肪族>极性。在所有情况下，臭氧氧化副产物都被部分识别；大多数副产物与臭氧反应形成。实际上，其中一些副产物被完全分解，而另一些则被积累。在所有系统中都鉴定出一些产物，如蒽酮、9,10-蒽醌和邻苯二甲酸，它们的毒性比蒽低。
