| 甲醛改性花生壳对亚甲基蓝的吸附特性研究 |
| |
| 引用本文： | 余纯丽,傅遍红,吴四维,易运梅.甲醛改性花生壳对亚甲基蓝的吸附特性研究[J].安徽农业科学,2009,37(20):9618-9620. |
| |
| 作者姓名： | 余纯丽 傅遍红 吴四维 易运梅 |
| |
| 作者单位： | 1. 重庆工商大学环境与生物工程学院,重庆,400067
2. 重庆大学资源与环境科学学院,重庆,400030 |
| |
| 摘 要： | ［目的］为花生壳在染料工业废水处理中的应用提供理论指导。［方法］通过甲醛改性花生壳对亚甲基蓝的吸附试验，探讨振荡时间、初始浓度、pH值、温度等因素对吸附过程的影响。［结果］15 min内，甲醛改性花生壳对亚甲基蓝的吸附量随时间的延长而快速增加15 min后，吸附量随时间变化增加缓慢。35～55 min内，改性花生壳对亚甲基蓝的吸附量变化较小，55～75 min变化较大，95 min后，基本不再改变。pH值为1～3时，改性花生壳对亚甲基蓝的吸附量随pH值的增加而减小，pH值为3～5时吸附量达到最小值 pH值为5～8时，吸附量增加，pH值大于8时，其吸附量又减小。改性花生壳对亚甲基蓝的吸附过程符合Langmuir与Freundlich模型，其吸附平衡常数与最大吸附量随温度的升高而增大。［结论］该吸附过程为自发的吸热过程且符合二级动力学反应。
|
| 关 键 词： | 花生壳 酸性甲醛改性 亚甲基蓝 吸附热力学和动力学 |
Study on the Adsorption Characteristics of Peanut Shells Modified by Formaldehyde to Methylene Blue |
| |
| YU Chun-li et al.Study on the Adsorption Characteristics of Peanut Shells Modified by Formaldehyde to Methylene Blue[J].Journal of Anhui Agricultural Sciences,2009,37(20):9618-9620. |
| |
| Authors: | YU Chun-li |
| |
| Institution: | YU Chun-li et al (School of Environmental , Biological Engineering,Chongqing Technology , Business University,Chongqing 400067) |
| |
| Abstract: | Objective] The study aimed to provide theoretical directions for applying peanut shells in disposing dyestuffs wastewater.Method] The influences of factors such as oscillation time,inintial concn.,pH value and temperature on the adsorption process were discussed through the adsorption experiment on peanut shells modified by formaldehyde to methylene blue.Result] In 15 min,the adsorption quantity of peanut shells modified by formaldehyde to methylene blue was increased quickly as the adsorption time exten... |
| |
| Keywords: | Peanut shells Modification by acidic formaldehyde Methylene blue Adsorption thermodynamics and dynamics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
