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[1]康睿娴,汪 燚,郭园萍,等.大孔树脂对增甘膦盐溶液Ca2+去除性能研究[J].武汉工程大学学报,2023,45(03):299-304.[doi:10.19843/j.cnki.CN42-1779/TQ.202108007]
 KANG Ruixian,WANG Yi,GUO Yuanping,et al.Removal of Ca2+ from Glyphosine Salt Solution by Macroporous Resin[J].Journal of Wuhan Institute of Technology,2023,45(03):299-304.[doi:10.19843/j.cnki.CN42-1779/TQ.202108007]
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大孔树脂对增甘膦盐溶液Ca2+去除性能研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
45
期数:
2023年03期
页码:
299-304
栏目:
生物与环境工程
出版日期:
2023-06-30

文章信息/Info

Title:
Removal of Ca2+ from Glyphosine Salt Solution by Macroporous Resin
文章编号:
1674 - 2869(2023)03 - 0299 - 06
作者:
康睿娴1汪 燚1郭园萍1汪 荣1余军霞*1池汝安12
1.武汉工程大学化学与环境工程学院,绿色化工过程教育部重点实验室(武汉工程大学),
湖北 武汉 430205;
2. 湖北三峡实验室,湖北 宜昌 443008
Author(s):
KANG Ruixian1WANG Yi1 GUO Yuanping1 WANG Rong1 YU Junxia*1 CHI Ru’an12
1. School of Chemistry and Environmental?Engineering, Wuhan Institute of Technology;? Key Laboratory of Green Chemical Process (Wuhan Institute of Technology), Ministry of Education, Wuhan?430205,?China;
2. Hubei Three Gorges Laboratory,Yichang 443008,China
关键词:
大孔阳离子交换树脂增甘膦脱钙吸附
Keywords:
macroporous cation exchange resin glyphosine decalcification adsorption

分类号:
X78
DOI:
10.19843/j.cnki.CN42-1779/TQ.202108007
文献标志码:
A
摘要:
采用大孔阳离子交换树脂对增甘膦钙溶液进行脱钙处理,重点探讨了该树脂对Ca2+的等温和动力学吸附行为,研究了pH对其吸附性能的影响及树脂的重复使用性,并对钙离子脱除机理进行了研究。结果表明:该树脂对Ca2+的吸附不受溶液初始pH影响,在20 min内即可达到平衡,最大吸附量为52.87 mg/g,且经5次重复利用后,对Ca2+的回收率仍可维持在98.2%以上;该过程符合Langmuir等温吸附模型、准二级动力学模型,另外,该树脂在处理实际增甘膦溶液时可实现钙离子的高效脱除;机理分析表明该树脂对Ca2+吸附以离子交换反应为主。这为复杂有机废液中钙的分离脱除提供了有益的理论参考。

Abstract:
In this work, macroporous cation exchange resin was used for the selective removal of Ca2+ ions from glyphosine calcium solution. The adsorption isotherm, kinetic, pH effect, and the reusability of macroporous resin were studied. Further, the adsorption mechanism was explored based on the Fourier infrared spectroscopy. The results showed that the adsorption of Ca2+ is barely affected by the initial solution pH, and it reaches the equilibrium within 20 min, with a maximum adsorption capacity of 52.87 mg/g. The adsorption process is in accordance with the Langmuir isothermal adsorption model, the pseudo-first-order and pseudo-second-order kinetic models, respectively. After reusing the resin five times, the recovery efficiency of Ca2+ still remains above 98.2%. Moreover, in practical glyphosine calcium solution, the Ca2+ ions can also be removed efficiently by using the resin as an adsorbent. The mechanism analysis showed that Ca2+ is adsorbed onto the resin mainly through ion exchange. Overall, this study provides a theoretical reference for the separation and removal of calcium ions from the complex organic wastewater.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2021-08-20
基金项目:国家重点研发计划项目(?2019YFC1905803);湖北三峡实验室开放创新基金(SC213001)
作者简介:康睿娴,硕士研究生。E-mail:671261302@qq.com
*通讯作者:余军霞,博士,教授。E-mail:yujunxia1979@163.com
引文格式:康睿娴,汪燚,郭园萍,等. 分离草甘膦母液中增甘膦钙盐的脱钙研究[J]. 武汉工程大学学报,2023,45(3):299-304,348.

更新日期/Last Update: 2023-07-03