摘要
通过静态实验研究了竹炭对氨氮的吸附性能和影响因素。实验结果表明,竹炭对氨氮的吸附过程遵循准二级动力学模型;竹炭对氨氮的等温吸附可用Langmuir和Freundlich等温模型拟合,相关系数R2达到极显著相关(P<0.01);在pH为4.93～9.03范围内,吸附量随着pH的上升而增加;温度升高有利于竹炭对氨氮的吸附。
Experiment was conducted on adsorption characteristics of bamboo-charcoal, a new type of adsorbent for removing ammonium in water. Results indicated that the adsorption kinetics can be described by pseudo-second-order model and well fitted by both Langmuir and Freundlich equations. Influence of some parameters such as temperature and pH were also studied.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第6期19-21,50,共4页
Environmental Science & Technology
基金
广西"新世纪十百千人才工程"专项资金资助项目(2004217)
广西科学基金(桂科基0575103)
广西2007年研究生科技创新计划项目(2007105960830M23)
关键词
竹炭
氨氮
吸附
影响因素
bamboo＇charcoal
ammonium
adsorption
influence factors
