竹炭对氨氮的吸附性能及其影响因素的研究  

Adsorption of Ammonium by Bamboo-charcoal

作　　者：张爱莉[1] 朱义年[1] 纪锐琳[1] 佟小薇[1] 王敦球[1] 张学洪[1] 

机构地区：[1]桂林工学院资源与环境工程系,广西桂林541004

出　　处：《环境科学与技术》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)

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.

关 键 词：竹炭 氨氮 吸附 影响因素 

分 类 号：X703[环境科学与工程—环境工程]