文档介绍：第35卷第2期非金属矿
2012年3月 Non-Metallic Mines March, 2012
竹炭对废水中Ni(II)的吸附性能研究
冯雪冬马艳飞* 卢杰
(山东理工大学资源与环境工程学院,山东淄博 255091)
摘要研究竹炭加入量和废水 pH 值对吸附效果的影响,以及竹炭对 Ni(II) 的吸附动力学和热力学特性。结果表明,增加竹炭加入量,废
水中 Ni(II) 去除率增高,可达 %,竹炭对中性和碱性废水中 Ni(II) 吸附效果更好。二级动力学方程很好地表征了竹炭吸附 Ni(II) 的动力学特
性。竹炭对 Ni(II) 具有一定的吸附能力, 且竹炭粒径越小吸附能力越强,吸附等温线符合 Langmuir 模型,饱和吸附量为 ~ mg/g。动态吸
附实验表明, 出水中 Ni(II) 浓度先增大后降低,在未达到饱和吸附点时,竹炭的吸附量已达 mg/g。
关键词竹炭 Ni(II) 吸附动力学吸附热力学粒径
中图分类号:X703 文献标识码:A 文章编号:1000-8098(2012)02-0063-04
Study on Characteristics of Bamboo Charcoal adsorbing Ni(II) from Wastewater
Feng Xuedong Ma Yanfei* Lu Jie
(College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, Shandong 250091)
Abstract The effects of bamboo charcoal dose and pH value were investigated. The thermodynamics and ics for the adsorption of Ni(II)
on bamboo charcoal were studied. The results show that the removal rate of Ni(II) increases with the increasement of bamboo charcoal dose, and the
maximum removal rate is %. The removal rate of Ni(II) is higher when the bamboo charcoal deals with neutral or alkaline wastewater. The second-
order ic equation can express the dynamics characteristics of bamboo charcoal adsorbing Ni(II). Bamboo charcoal has certain adsorption capacity
for Ni(II) , and the smaller is the particle size of bamboo charcoal, the strong