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[1]赵启天,杨 隽*,舒何进,等.壳聚糖螯合吸附剂的制备及其在尾矿坝中的应用[J].武汉工程大学学报,2020,42(01):50-53.[doi:10.19843/j.cnki.CN42-1779/TQ.201907004]
 ZHAO Qitian,YANG Jun*,SHU Hejin,et al.Preparation of Chitosan Chelate Adsorbent and Its Application in Tailings Dam[J].Journal of Wuhan Institute of Technology,2020,42(01):50-53.[doi:10.19843/j.cnki.CN42-1779/TQ.201907004]
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壳聚糖螯合吸附剂的制备及其在尾矿坝中的应用(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年01期
页码:
50-53
栏目:
材料科学与工程
出版日期:
2021-01-25

文章信息/Info

Title:
Preparation of Chitosan Chelate Adsorbent and Its Application in Tailings Dam
文章编号:
1674 - 2869(2020)01 - 0050 - 04
作者:
赵启天12 杨 隽*12舒何进12 徐恩松1
1. 武汉工程大学材料科学与工程学院,湖北 武汉 430205;2. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北 武汉 430071
Author(s):
ZHAO Qitian12YANG Jun*12SHU Hejin12XUN Ensong1
1. School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205, China;2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institue of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
关键词:
壳聚糖乙二胺四乙酸二酐Ca2+ 吸附尾矿坝
Keywords:
chitosanethylenediaminetetraacetic acid dianhydrideCa2+ adsorptiontailings dam
分类号:
TQ028.1+5
DOI:
10.19843/j.cnki.CN42-1779/TQ.201907004
文献标志码:
A
摘要:
尾矿坝的废水中含有大量的Ca2+ ,易与碳酸根离子、氢氧根离子形成淤堵物质,堵塞尾矿坝的排渗管,严重时导致溃坝。为处理废水中的钙离子,以壳聚糖为原料,采用乙二胺四乙酸(EDTA)进行接枝共聚反应,制备了一种离子吸附剂。采用傅里叶变换红外光谱仪对样品进行结构分析,确定了该离子吸附剂含有大量EDTA基团。通过模拟实验和络合滴定实验研究了原料配比、样品用量及吸附时间对吸附量的影响。结果表明,该吸附剂的饱和吸附量达到4.3 mmol/g,有着很好的吸附效果。研究为尾矿坝废水中的Ca2+安全处理提供理论依据。
Abstract:
A large number of calcium ions in the wastewater form blockages with carbonate and hydroxide ions to block the drainage pipe and lead to dam-failure in tailings dam. To remove Ca(II) in wastewater, we prepared a ion adsorbent by grafting copolymerization of ethylenediamineteraacetic acid (EDTA) onto chitosan(CS), and characterized its structures by Fourier transform infrared spectroscopy. The result shows that the new ion adsorbent contains a large number of EDTA groups. The effects of mole ratio of CS to EDTAD, CS-EDTAD dosages and adsorption times on Ca(II) adsorption were determined by simulation experiment and complexometry experiment. The results show that the saturated adsorption of Ca(Ⅱ) reaches 4.3 mmol/g, and the new ion adsorbent has a better adsorption capacity. The study provides a theoretical basis for safe treatment of Ca(II) in wastewater from tailings dam.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-07-02基金项目:国家重点研发计划课题(2017YFC0804602);武汉工程大学第十届研究生教育创新基金(CX2018058);岩土力学与工程国家重点实验室开放基金(Z018008)作者简介:赵启天,硕士研究生。E-mail: [email protected]*通讯作者:杨 隽,博士,教授。E-mail:[email protected]引文格式:赵启天,杨隽,舒何进,等. 壳聚糖螯合吸附剂的制备及其在尾矿坝中的应用[J]. 武汉工程大学学报,2020,42(1):50-53.
更新日期/Last Update: 2020-06-09