在UV/H2O2和UV/Ti O2/H2O2两大氧化体系中,利用·OH的氧化原理,研究了不同影响因素(UV波长、p H、H2O2)对油田采出水中多环芳烃萘和芴降解效率的影响,找出处理萘和芴的最佳优化条件和组合。对萘和芴而言,UV/H2O2体系下双氧水的最佳条件分别为0.001,0.1 mol,UV/Ti O2/H2O2的优化组合是UVC,p H=8.5,O3=10g/L。实验结果表明:与UV/H2O2相比,UV/Ti O2/H2O2对油田采出水中的多环芳烃萘和芴的降解效果好。
The paper makes use of the principle of hydroxyl radical and studies degradation efficiency of polycyclic aromatic hydrocarbons naphthalene and fluorene with the different factors( UV wavelength,p H and H2O2) under the UV/H2O2 and UV / Ti O2/ H2O2 oxidation systems. The results showed the best condition and combination. For naphthalene and fluorene,the best condition of UV / H2O2 system was H2O2= 0. 001 mol or 0. 1 mol. The best conditions of the UV / Ti O2/ H2O2 system was UVC,p H = 8. 5,ρ( H2O2) = 10 g/L. The experimental results showed that the UV/Ti O2/ H2O2 was better for the degradation effect of naphthalene and fluorene in oilfield produced water than UV / H2O2.