催化湿式氧化处理头孢氨苄废水  

Catalytic wet air oxidation of waste water containing cephalexin

作　　者：李先如[1,2] 王维[2] 陈静怡 熊子昂 孙文静[1] 卫皇曌[1] 祁至崴 孙承林[1] Li Xianru;Wang Wei;Chen jingyi;Xiong Ziang;Sun Wenjing;Wei Huangzhao;Qi Zhiwei;Sun Chenglin(National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China;CAS DICP Zhangjiagang Industrial Technology Research Institute Co.,Ltd.,Zhangjiagang 215600,Jiangsu,China;School of Chemical Engineering,Dalian University of Technology,Dalian 116012,Liaoning,China)

机构地区：[1]中国科学院大连化学物理研究所,洁净能源国家实验室,辽宁大连116023 [2]中国科学院大连化学物理研究所张家港产业技术研究院有限公司,江苏张家港215600 [3]浙江工业大学,材料科学与工程学院,浙江杭州310014 [4]大连理工大学,辽宁大连116023

出　　处：《工业催化》2018年第1期74-80,共7页Industrial Catalysis

摘　　要：采用催化湿式氧化处理头孢氨苄废水,考察反应温度、进水pH及Cl-含量对RCT催化剂性能的影响,并对液体样品及催化剂进行了HPLC、TOC/TN、GC-MS、N2物理吸附-脱附及XRF表征。通过正交实验,得出最佳的工艺条件为:进水pH=4.8,Cl-浓度1 500 mg·L-1,反应温度260℃;对催化剂进行300 h连续寿命考察,废水TOC及TN去除率均超过90%,催化剂稳定性高,活性组分流失较少;废水经催化湿式氧化处理,水中残留的主要有机物均可生化降解。Catalytic wet air oxidation was employed to treat cephalexin wastewater,and the effects of reaction temperature,pH and Cl-content were investigated.Liquid samples and catalysts were characterized by HPLC,TOC/TN,GC-MS,N2-Physisorption and XRF.Orthogonal experimentalresults showed that the optimal reaction conditions were:reaction temperature was 260℃,Cl-content was 1500 mg·L-1 and pH was 4.8.RCT catalyst exhibited high TOC/TN removal(over 90%),high stability and low active met al loss during 300 h reaction test.And the main organic residues after CWAO werebiodegradable.

关 键 词：催化剂工程 催化湿式氧化 头孢氨苄废水 工艺条件 Ru/TiO2催化剂 

分 类 号：TQ333.2[化学工程—橡胶工业] X701[环境科学与工程—环境工程]