利用磁性改性沸石从水溶液中去除铵离子。
Removal of ammonium ion from aqueous solution using magnetically modified zeolite.
作者信息
Nah I W, Hwang K-Y, Shul Y-G, Jeon C
机构信息
Center for Environment Technology Research, Korea Institute of Science & Technology, P.O. Box 131, Cheongryang, Seoul, Korea.
出版信息
Environ Technol. 2008 Jun;29(6):633-9. doi: 10.1080/09593330801984514.
This paper assesses the potential of magnetically modifiedzeolite (MMZ) for ammonia removal from aqueous solution. The effects of relevant parameters such as contact time, pH and initial ammonia concentration were examined. The results show that ammonium ion removal by MMZ occurs rapidly within the first five minutes, pH has an effect on ammonium ion removal efficiency, and the ammonium ion removal capacity of MMZ increases with increase in initial ammonium ion concentration. The Langmuir and Freundlich adsorption isotherms were used to determine the adsorption characteristics. Ammonium-laden MMZ seems to be regenerated completely by sodium chloride solution at pH 11-12.
本文评估了磁性改性沸石（MMZ）从水溶液中去除氨的潜力。研究了接触时间、pH值和初始氨浓度等相关参数的影响。结果表明，MMZ对铵离子的去除在前五分钟内迅速发生，pH值对铵离子去除效率有影响，且MMZ对铵离子的去除能力随初始铵离子浓度的增加而提高。采用朗缪尔和弗伦德里希吸附等温线来确定吸附特性。负载铵的MMZ似乎在pH值为11 - 12的氯化钠溶液中能完全再生。
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