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author:

杨金杯 (杨金杯.) [1] | 陈玉成 (陈玉成.) [2] | 余美琼 (余美琼.) [3] | 邱挺 (邱挺.) [4]

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Abstract:

实验采用离子交换树脂法吸附镍(Ⅱ),树脂选型确定了强酸性阳离子交换树脂001×14.5对镍(Ⅱ)吸附容量最大。用所选的001×14.5树脂吸附镍(Ⅱ)的过程,静态吸附实验表明,转速大于100 r/min时,对树脂吸附的影响可忽略,即基本消除外扩散,pH=7.0时吸附最佳,镍(Ⅱ)吸附率随树脂用量的增加而增大;001×14.5树脂吸附镍(Ⅱ)过程符合Langmuir等温吸附方程,且为优惠吸附;吸附过程符合拟二级动力学模型,吸附过程活化能为E=30.9 kJ/mol,由颗粒内扩散控制;用1 mol/L的硫酸对吸附饱和树脂进行脱附再生,脱附率可达98%以上。

Keyword:

动力学 吸附 热力学 离子交换树脂 镍(Ⅱ)

Community:

  • [ 1 ] 福建师范大学福清分校,福州350300
  • [ 2 ] 福州大学化学化工学院,福州350108

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Source :

环境工程学报

ISSN: 1673-9108

Year: 2013

Issue: 8

Volume: 7

Page: 3019-3024

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 4

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