臭氧催化氧化处理制药废水连续性实验研究  

Experimental study on continuous treatment of pharmaceutical wastewater by ozone catalytic oxidation

作　　者：杨文玲[1,2] 吴赳 王坦 孙亚云 YANG Wen-ling;WU Jiu;WANG Tan;SUN Ya-yun(School of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;School of Chemical Engineering and Technology of Tianjin University,Tianjin 300192,China)

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]天津大学化工学院,天津300192

出　　处：《应用化工》2019年第2期365-368,共4页Applied Chemical Industry

基　　金：河北省科技计划项目(17273602D)

摘　　要：采用NixO-FxO/陶粒催化剂在大高径比的管式反应器中进行臭氧催化氧化连续性实验,研究催化剂投加量、臭氧投加量、反应停留时间、气液接触方式等工艺条件对制药废水的处理效果和稳定性的影响。实验表明,催化氧化连续实验最佳工艺条件为:停留时间90 min,臭氧气体通量为1 L/min,臭氧浓度为96.61 mg/L,臭氧利用率可达到92.8%左右,气液接触方式逆流略优于并流效果。在臭氧催化氧化连续运行96 h,臭氧催化氧化去除制药废水COD可稳定在58%以上。An ozone catalytic oxidation process was carried out in a tubular reactor with Ni x O-F x O/ceramic catalyst.Under continuous conditions,the influence of the amount of catalyst,the dosage of ozone,the HRT and the contact mode of gas and liquid on the effect and stability of catalyst on the treatment of pharmaceutical wastewater were studied.The results showed that the optimum conditions for continuous catalytic oxidation were:residence time 90 min,ozone gas flux 1 L/min and ozone concentration of 96.61 mg/L,the ozone utilization rate is 92.8%,and it is proved that the counter current of gas liquid contact way is slightly better than flow effect.Ozone catalytic oxidation for continuous operation of 96 h,ozone catalytic oxidation to remove pharmaceutical wastewater COD can be stabilized above 58%.

关 键 词：制药废水 臭氧 非均相催化氧化 深度处理 连续实验 

分 类 号：TQ032.41[化学工程] TQ123.1