钙型沸石对生活污水中氨氮去除的研究  

AMMONIUM REMOVAL BY CA-FORM ZEOLITE FROM MUNICIPAL WASTEWATER

作　　者：赵雅萍[1] 金伟[1] 曹达文[2] 高廷耀[2] 陆奇斌 

机构地区：[1]上海同济大学环境科学与程学院,上海200092 [2]上海同济大学城市污染与控制国家工程中心,上海200092 [3]上海市崇明环保局,上海202100

出　　处：《离子交换与吸附》2004年第5期458-463,共6页Ion Exchange and Adsorption

基　　金：国家高技术研究发展专项基金;863计划 (2003AA601020)

摘　　要：通过静态方法研究了钙型沸石对氨氮的去除效果。氨氮在钙型沸石上的吸附是吸热过程,饱和吸附容量是46.29mg/g。经过10次吸附-解析-再吸附循环过程,从吸附容量的数据可知盐酸和氯化钠可以获得很好的再生效果,吸附容量的标准偏差分别为6.34%和6.59%。对生活污水中氨氮的去除效果表明,在废水处理过程中钙型沸石将是一种实用和廉价的氨氮吸附剂。Ammonium removal by modified zeolite, Ca-form zeolite, was examined by batch-type methods. The adsorption of ammonium on Ca-form zeolite was exothermic process. The saturation adsorption capacity of ammonium on Ca-form zeolite was 46.29mg/g. After ten times adsorption-desorption- readsorption cycles the standard deviation of Ca-form zeolite was 6.34% and 6.59% by NaCl and HCl regenerated, respectively. The better effect of ammonium removal from municipal wastewater showed that the Ca-form zeolite would be a practical and cost effective adsorbent in wastewater treatment.

关 键 词：氨氮 钙型沸石 再生 生活污水 

分 类 号：X703[环境科学与工程—环境工程]