支撑液膜法脱除氨氮的动力学  

The Extraction Kinetics of Ammonia-Nitrogen by the Supported Liquid Membrane

作　　者：余美琼[1] 王碧玉[2] 

机构地区：[1]福建师范大学福清分校生物与化学工程系,福建福清350300 [2]福州大学化学化工学院,福建福州350002

出　　处：《化学工程与装备》2008年第7期8-13,共6页Chemical Engineering & Equipment

摘　　要：研究了以聚丙烯为支撑膜、以D2EHPA为载体脱除废水中的氨氮的支撑液膜体系。通过实验确定了料液pH值、载体浓度等与铵离子渗透系数之间的关系;建立了动力学方程。Separation of ammonia-nitrogen from the wastewater with D2EHPA as extractant is carried out with supported liquid membrane. The kinetics of extraction can be expressed as a function of acidity of the feed solution and the concentration of membrane carries. The coupled-transport model describing the permeability coefficient of NH4+ is derived.

关 键 词：氨氮废水 反应平衡常数 动力学方程 支撑液膜 

分 类 号：X703.1[环境科学与工程—环境工程]