摘要
文章通过静态吸附实验,研究了凹凸棒复合滤料对氨氮的吸附性能,探讨了吸附时间,氨氮初始浓度,pH,温度等因素对吸附效果的影响。实验结果表明,吸附在60min达到平衡,吸附动力学过程遵循准二级动力学模型,吸附等温线符合Freundlich方程,吸附率在pH=2～6时较高,并且随着温度的升高而升高。
Adsorption of ammonia nitrogen by attapulgite composite filter material was studied by batch experiments. The effects of contact time, ammonia nitrogen initial concentration, pH value and temperature were investigated. The results indicated that adsorption got balance at contact time 60 min. The adsorption process could be described by pseudo-second-order model. The adsorption process fitted Freundlich equation well. The adsorption rate was high when pH between 2 to 6, increased with the temperature.
出处
《广东化工》
CAS
2009年第8期19-20,66,共3页
Guangdong Chemical Industry
基金
凹凸棒纳米复合滤料生物滤池在微污染饮用水处理中的应用(163050023)
饮用水均质滤料生物过滤技术研究
关键词
凹凸棒复合滤料
吸附
氨氮
研究
attapulgite composite filter material
adsorption
ammonia nitrogen
study
