摘要
氢氧化镁作为环境友好型水处理剂,近年来在环保领域的应用引起了人们的极大关注。本文对氢氧化镁净化酸性含镍(Ⅱ)废水进行了研究。考察了氢氧化镁用量、混合反应时间、温度及pH对镍(Ⅱ)离子去除效果的影响,探讨了吸附作用机理。结果表明:氢氧化镁对含镍(Ⅱ)污水的处理,操作简便、去除率高,可达99%以上。在镍(Ⅱ)离子浓度低于60mg/L时,吸附等温线符合Langmuir模式,饱和吸附量为12.41mg/g。
Magnesium hydroxide as an envimmnental friendly water treatment reagent has drawn much attention recently in the field of environment protection. In this thesis, studied was the treatment of wastewater containing Ni（ Ⅱ ） ion by using magnesium hydroxide, a water treatment reagent. And, examined were the effect of magnesium hydroxide dose,mixed reaction time,temperature and pH value on removing Ni（ Ⅱ） ion, also studied was the mechanism for the adsorption. The results indicated that magnesium hydroxide has an excellent performance, such as easy operation, super removing rate,and the more than 99% removal rate of Ni（Ⅱ ） in wastewater. When the concentration of Ni（Ⅱ ） ion is less than 20mg/L, the adsorption isotherm is true of Langmuir mode, and the maximum adsorption amount is 12.41mg/g.
出处
《山东建筑大学学报》
2007年第5期421-424,共4页
Journal of Shandong Jianzhu University
关键词
氢氧化镁
镍离子
吸附
magnesium hydroxide
nickel ion
adsorption
