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针对采油废水中含有多环芳烃种类多且较难去除的特点,采用UV-Fenton技术对采油废水中多环芳烃的处理效果进行了研究,通过正交实验和单因素实验,研究了在254 nm波长紫外光照射下,Fe2+投加量、H2O2投加量、pH值和光照时间对水样中多环芳烃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1 000μg/L的菲、芴时,反应的最佳工艺条件为:Fe2+浓度为1.8 mmol/L、H2O2投加量为0.15 mmol/L、pH值为4、光照时间1.25 h。在此条件下,菲和芴的去除率可达71.9%。
Aiming at the characteristics of oil-bearing wastewater containing many kinds of polycyclic aromatic hydrocarbons (PAHs), which are difficult to remove, UV-Fenton technology was applied to treat PAHs in wastewater. Orthogonal and single- Effect of Fe2 + dosage, H2O2 dosage, pH value and illumination time on the treatment effect of phenanthrene and fluorene in PAHs under UV irradiation. The experimental results showed that the optimal reaction conditions were as follows: the concentration of Fe2 + was 1.8 mmol / L, the dosage of H2O2 was 0.15 mmol / L, the pH value was 4, and the light Time 1.25 h. Under these conditions, the removal rates of phenanthrene and fluorene reached 71.9%.