摘要
利用亚甲基蓝水溶液进行实验,测定了NaOH改性处理的花生壳对其的吸附能力.运用单因素实验方法,探讨了改性花生壳的物理化学特性、吸附时间、吸附剂添加量、pH值、温度和离子强度等因素对吸附性能的影响以及等温吸附过程.结果表明,改性能够提高吸附剂的吸附效果.在低温碱性条件下,改性花生壳粉投加量为0.6 g·L^(-1),吸附时间为1 h时,亚甲基蓝的去除率可达94.43%,饱和吸附容量为294.12 mg·g^(-1),等温吸附过程遵循Langmuir方程.
The adsorption capacity of methylene blue by NaOH modified peanut shell was determined from aqueous solution.The effect of physical and chemical characteristics,adsorption time,adding amount,pH value,temperature and ionic strength of the modified peanut shell on adsorption capacity and isothermal adsorption process were studied through the single factor experiment.The results showed that modification can improve the effect of adsorption of adsorbent.In addition,under the condition of low temperature and alkaline,when the adding amount of modified peanut shell powder was 0.6 g·L^（-1） and the adsorption time was 1 h,the adsorption capacity was 94.43%.And the saturation adsorption capacity was 294.12 mg·g^（-1）.The isothermal adsorption process follows the Langmuir equation.
出处
《高师理科学刊》
2017年第1期49-54,共6页
Journal of Science of Teachers＇College and University
关键词
花生壳粉
吸附
亚甲基蓝
去除率
改性
peanut shell powder
adsorption
methylene blue
removal rate
modification
