广东工业大学学报 ›› 2011, Vol. 28 ›› Issue (3): 18-20.
摘要: 采用气相沿面放电等离子体反应器降解水中对硝基苯酚(PNP).考查了载气流量、氧气体积含量和溶液初始pH值对PNP降解效果的影响.结果表明:PNP的降解率随着载气流量的增加而增加,当载气流量增加到1.50 m 3/h时,PNP的降解率可达90%以上;载气中氧气体积含量为41%时,PNP降解率为99%;pH值为弱碱性时,PNP的降解率为96%,明显高于pH值为中性和弱酸性时PNP的降解率,此时,COD去除率为74.5%,COD去除的能量利用率为8.86×10-3mg/J.
[1] USA Environmental Protection Agency. Nitrophenols, Ambient Water Quality Criteria[S]. Washington, DC, 1980.[2] Li Jie, Song Ling, Liu Qiang, et al. Degradation of organic compounds by active species sprayed in a dielectric barrier corona discharge system[J]. Plasma Science and Technology, 2009, 11(2), 212-215.[3] Mok Y S,Jo J. Degradation of organic contaminant by using dielectric barrier discharge reactor immersed in waste water[J].IEEE Transactions on Plasma Science, 2006, 34(6): 2624-2629.[4] Hoeben W F, Veldhuizen E M, Rutgers W R, et al. Gas phase corona discharges for oxidation of phenol in aqueous solution [J].Journal of Physics D: Applied Physics, 1999, 32:133-137.[5] 陈银生, 张新胜, 戴迎春,等. 脉冲电晕放电等离子体降解含4氯酚废水[J].化工学报, 2003, 54(9): 126-127.[6] Sunka P. Pulse electrical discharges in water and their applications [J]. Physics of Plasmas, 2001, 8(5): 2 587-2 594.[7] Sunka P, Babieky V, Clupek M. Generation of chemically active species by electrical discharges in water[J]. Plasma Sources Science and Technology, 1999, 8(2): 258-265.[8] Sano N, Kawashima T. Decomposition organic compounds in water by direct contact of gas corona discharge: influence of discharge condition[J]. Industrial & Engineering Chemistry Research,2002, 42: 5 906-5 911.[9] Beltran F j, Vicente G S, Antonio D. Degradation kinetics of pnitrophenol ozonation in water[J]. Water Research,1992, 26(1): 9-17.[10]Gai K, Dong Y J. Liquid phase auramine oxidation induced by plasma with glow discharge electrolysis[J]. Plasma Sources Science and Technology, 2005, 14: 589-593. |
No related articles found! |
|