树脂对稀土冶炼废水氨氮的吸附及动力学研究_赖华

树脂对稀土冶炼废水氨氮的吸附及动力学研究_赖华树脂对稀土冶炼废水氨氮的吸附及动力学研究赖华a，罗仙平a，张艳a，郭钟群b（江西理工大学,a.资源与环境工程学院;b.建筑与测绘工程学院,江西赣州341000）摘要：利用离子交换树脂法对稀土冶炼废水中氨氮进行处理，考察树脂用量、时间、温度及pH等因素的影响，并进行动力学研究实验.实验结果表明：树脂用量增加、时间增加、温度升高、pH值升高均有利于提高离子交换容量；D113树脂对氨氮的离子交换过程符合二级动力学方程.关键词：氨氮废水；离子交换树脂；吸附动力学中图分类号：X758文献标志码：AAdsorptionandkineticsofresinonammonia-nitrogenoutofrareearthsmeltingwastewaterLAIHuaa,LUOXian-pinga,ZHANGYana,GUOZhong-qunb(a.SchoolofResourceandEnvironmentEngineering;b.SchoolofArchitecturalandSurveyingandMappingEngineering，JiangxiUniversityofScienceandTechnology,Ganzhou341000,China)Abstract:Thisarticlestudiestheammonia-nitrogentreatmentinrareearthsmeltingwastewaterbyionexchangeresinmethod.Kineticsexperimentsareperformedfordecidingtheeffectsofresinamount,time,temperatureandpH.Theaddingofresinamount,temperature,timeandpHvaluearefavorableforincreasingionexchangecapacity.TheionexchangeofD113resinonammonia-nitrogenconformstothetwokineticequation.Keywords:ammonia-nitrogenwastewater;ionexchangeresin;adsorptionkinetics文章编号：1674