炼油厂废水库底泥中半挥发性有机污染物监测与评价

Determination and Evaluation of Semivolatile Organic Pollutants in the Refinery Wastewater Sediment Using Ultrasonication Extraction Combined with GC/MS

采用超声提取结合GC/MS测定了克拉玛依炼油厂污水库底质中的半挥发性有机物。选择16个多环芳烃作为加标物,测定超声提取法的回收率在65%94%。从底泥中检出62个色谱峰,能准确定性20个组分,主要包括9个多环芳烃、5个正构烷烃和3个酚类化合物。对缺少标准物的组分采用结构相似物进行定量,浓度范围在0.1259 ng/g。估算萘、芴和菲的log Koc分别为3.82,4.27和4.22。推断3,5-二叔丁基-4-羟基苯甲醛是3,5-二叔丁基-4-羟基甲苯的环境降解产物。

The semivolatile organic pollutants in sediment of the refinery wastewater reservoir were determinated using ultrasonication extraction combined with GC/MS.The recovery of addition 16 polycyclic aromatic hydrocarbons（PAHs） as standard to soil was measured with range from 65%？94%.The 20 compounds from sediments were identified including 9 PAHs,5 n-hydrocarbons and 3 phenols et al.Quantitative analysis was achieved with structure similitude as standard samples with range of the concentration of 0.1？259 ng/g.The log Koc of naphthalene,fluorene and phenanthrene was estimated to be 3.82,4.27 and 4.22,repectively.The antioxidant 3,5-di-tert-butyl-4-hydroxy-toluene was degraded to 3,5-di-tert-butyl-4-hydroxybenzaldehyde in the refinery wastewater and sediment.更多还原