分别采用高温、酸、碱、盐及其联合处理等对天然斜发沸石进行改性实验，研究了沸石投加量、反应时间、温度、pH值、氨氮初始浓度等因素对最佳改性沸石吸附氨氮能力的影响。结果表明，盐溶液和高温联合处理改性得到的改性沸石吸附氨氮效果更好；模拟氨氮废水浓度为15 mg／L条件时，最佳沸石投加量为1．5g，最佳反应时间为40min，最佳温度为30℃，最佳 pH 值为8．0，氨氮去除率可达91．4％以上。%This paper adopted several ways to modify the natural clinoptilolite through high temperature,acid,al-kali,salt,and combination treatment.The factors including dosing quantity,reaction time,temperature,pH, and initial ammonia nitrogen concentration were compared in order to find out the best modified zeolite of adsorption ammonia nitrogen.The results indicated that adsorption effect of ammonia nitrogen of clinoptilolite modified by salt solution and high temperature combination treatment was best.And in the condition of simulation ammonia nitrogen wastewater concentration was 15mg/L,the best dosing quantity was 1. 5g,reaction time was 40min,reaction tem-perature was 30℃,and pH was 8,the removal rate of ammonia nitrogen was above 91. 4%.
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