中文摘要：

针对油田采出水中含有多环芳烃种类多且较难去除的特点，选取了菲和芴两种代表性多环芳烃作为研究对象，采用UV／H2O2／TiO2技术对油田采出水中多环芳烃的处理效果进行了研究；考察了在254nm波长紫外光照射下，TiO2投加量、H2O2投加量、pH值和光照时间对水样中的菲和芴处理效果的影响．实验结果显示，处理初始浓度为1000μg·L-1的菲、芴时，TiO2用量为2．2g·L-1、H2O2用量为0．12mmol·L-1、pH值为7、光照时间1．5h时，去除效果较好．

英文摘要：

It is challenging to remove a variety of polycyclic aromatic hydrocarbons （PAHs） in the produced water generated from oil and gas production. This paper selected phenanthrene and fluorene as the studying objects, focused on the UV/H2 O2/TiO2 method and the treatment efficiency for PAHs. We investigated the influence of the dosage of TiO2 and H2O2, pH and UV （254 nm） irradiation time on phenanthrene and fluorene removal in the water samples. The results showed that the optimal treatment conditions for phenanthrene and fluorene removal （initial concentration of 1000 μg·L-1） were determined as TiO2 dosage of 2.2 g-L-1, H2O2 dosage of 0.12 mmol· L-1, pH value of 7.0, exposure time of 1.5 h.