| 阴离子交换纤维吸附与解吸亚硝酸根的研究 |
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| 引用本文： | 吴敦虎,付晚涛.阴离子交换纤维吸附与解吸亚硝酸根的研究[J].上海环境科学,1992,11(8):11-14. |
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| 作者姓名： | 吴敦虎 付晚涛 |
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| 作者单位： | 大连铁道学院，大连铁道学院，大连铁道学院 |
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| 摘 要： | 本文对聚乙烯醇阴离子交换纤维(Poly vinylalcohol anion exchange fiber)吸附与解吸亚硝酸根分别作了动态及静态试验。结果表明,NO_2~-在PVAF上吸附与解吸速度快、再生容易、使用寿命长,吸附特征符合Langmuir吸附等温式,饱和吸附量为1.7m mol/g。其吸附率与温度、NO_2~-浓度、滤速、pH值、共存阴离子种类有关。洗脱率与洗脱剂种类、浓度有关。
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| 关 键 词： | PVAF 吸附 解吸 NO－2 |
Study of Adsorption and Desorption of Nitrite on Polyvinyl Alcohol Exchange Fiber |
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| Wu Dunhu Fu Wantao Lan Renjie.Study of Adsorption and Desorption of Nitrite on Polyvinyl Alcohol Exchange Fiber[J].Shanghai Environmental Science,1992,11(8):11-14. |
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| Authors: | Wu Dunhu Fu Wantao Lan Renjie |
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| Institution: | Dalian Railway Institute |
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| Abstract: | Both dynamic and static tests concerning adsorption and desorption of nitrite on polyvinyl alcohol anion exchange fiber (PVAF) has been reported. The result showed that the rate of adsorption and desorption was fast, PVAF easy to regenarate and life-time was long. The adsorbing properties agreed with Langmuir adsorption isothermal equation, its saturated adsorption capacity was 1.7 mmol/g.The adsorbing ratio related to temparature, concentration of nitrite, filtrating rate, pH value and sorts of anion. The kinds of eluting agent as well as their concentrations did effect on desorption. |
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| Keywords: | PVAF Adsorption Desorption Nitrite |
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