摘要
采用沸石去除水中氨氮的方法,从沸石用量、pH、吸附时间对氨氮吸附的影响以及沸石的吸附动力学进行研究。实验结果表明pH对沸石吸附有较大的影响,吸附最佳pH在6左右,随着沸石添加量的增加,氨氮的去除率增加,但是每克沸石的吸附量减少,利用率降低。沸石对氨氮的吸附具有快速吸附的特点,随着时间的增加,沸石对氨氮的去除变化缓慢。研究结果表明沸石对氨氮有较好的去除效果。
Using zeolite method to remove ammonia,the effect of the amount of zeolite,pH,adsorption time on amnonial adsorption and adsorption kinetics of ammonia by zeolite were researched. Results showed pH has a great impact on the adsorption using zeolite,the best adsorption pH is about 6,ammonia nitrogen removal rate increases with the increase of the dosage amount of zeolite,but the amount of ammonia adsorbed on per gram of zeolite was reduced. Adsorption of ammonia by zeolite has the characteristics of rapid adsorption,but the removal rate of ammonia nitrogen changes decreasingly with time.The results showed that zeolite had high removal efficiency of ammonia.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第S1期244-247,共4页
Environmental Engineering
基金
国家级大学生创新创业训练计划项目(201310359042)
关键词
沸石
氨氮吸附
吸附动力学
zeolite
ammonial adsorption
adsorption kinetics
