聚合氯化钛铝絮凝剂的制备及应用  

Preparation and application of poly aluminium titanium chloride(PTAC)flocculant

作　　者：孟祖超[1] 邵靖媛 刘天祥 朱泽江 刘磊 王定峰 MENG Zuchao;SHAO Jingyuan;LIU Tianxiang;ZHU Zejiang;LIU Lei;WANG Dingfeng(School of Chemistry and Chemical Engineering,Xi’an Shiyou University,Xi’an 710065,China;Xi’an Qinggang Clean Energy Technology Company Limited,Xi’an 710018,China;CHN ENERGY Yulin Chemical Company,Yulin 719000,China;Petrochina Changqing Oilfield Changbei Operating Company,Xi’an 710018,China)

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]西安庆港洁能科技有限公司,陕西西安710018 [3]国家能源集团榆林化工有限公司,陕西榆林719000 [4]中国石油长庆油田长北作业分公司,陕西西安710018

出　　处：《化工环保》2023年第2期247-253,共7页Environmental Protection of Chemical Industry

基　　金：陕西省自然科学基金项目(2018JM2014,2019JM-421);西安石油大学研究生创新与实践能力培养项目(YCS19213132)。

摘　　要：采用电化学法制备了絮凝剂聚合氯化钛铝(PTAC),并通过SEM、FTIR和XRD等多种手段进行了表征,考察了该絮凝剂对气田废水的处理效果。实验结果表明:与化学法制备的PTAC相比,采用电化学法制备的PTAC表面光滑、杂质含量少、对废水的絮凝效果更好;絮凝剂PTAC的最佳制备条件为碱化度1.5、Ti与Al的摩尔比100∶8;在PTAC加入量为32 mg/L、初始pH为5.5~7.5、沉降时间为50 min的条件下,气田废水经处理后,出水COD、UV_(254)和浊度去除率分别为84.35%、80.13%和84.55%。The flocculant poly aluminium titanium chloride(PTAC)was prepared by electrochemical method,and characterized by SEM,FTIR and XRD.The treatment effect of the flocculant on gas field wastewater was investigated.The experimental results show that:Compared with PTAC prepared by chemical method,PTAC prepared by electrochemical method has smooth surface,less impurities and better flocculation effect on wastewater;The optimum preparation conditions of the flocculant PTAC are alkalinity 1.5 and the molar ratio of Ti to Al 100∶8;When the gas field wastewater is treated under the optimum process conditions of PTAC dosage 32 mg/L,initial pH 6 and settling time 50 min,the removal rate of COD,UV_(254)and turbidity is 84.35%,80.13%and 84.55%,respectively.

关 键 词：絮凝剂 聚合氯化钛铝(PTAC) 电化学制备法 气田废水 

分 类 号：X703[环境科学与工程—环境工程]