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[1]安巧熙,汪 彦,陈宇驰,等.Fe3+对草甘膦母液中磷化物的去除研究[J].武汉工程大学学报,2025,47(04):363-369.[doi:10.19843/j.cnki.CN42-1779/TQ.202412011]
　AN Qiaoxi,WANG Yan,CHEN Yuchi,et al.Removal of phosphates from glyphosate mother liquor by Fe3+[J].Journal of Wuhan Institute of Technology,2025,47(04):363-369.[doi:10.19843/j.cnki.CN42-1779/TQ.202412011]
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Fe3+对草甘膦母液中磷化物的去除研究
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
47
期数:
2025年04期
页码:
363-369
栏目:
现代大化工
出版日期:
2025-08-29

文章信息/Info

Title:
Removal of phosphates from glyphosate mother liquor by Fe3+
文章编号:
1674 - 2869（2025）04 - 0363 - 07
作者:
1.武汉工程大学化学与环境工程学院，磷资源开发利用教育部工程研究中心，
绿色化工过程教育部重点实验，湖北 武汉 430205；
2.湖北三峡实验室，湖北 宜昌 443008
Author(s):
1.School of Chemistry and Environmental Engineering, Wuhan Institute of Technology; Engineering Research Center of
Phosphorus Resources Development and Utilization of Ministry of Education;
Key Laboratory of Green Chemical Process of Ministry of Education, Wuhan 430205, China;
2. Hubei Three Gorges Laboratory， Yichang 443008, China
关键词:
Keywords:
分类号:
X703
DOI:
10.19843/j.cnki.CN42-1779/TQ.202412011
文献标志码:
A
摘要:
草甘膦母液中含有草甘膦、增甘膦、亚磷酸等磷化物，是典型的高盐、高化学需氧量（COD）、高磷废液，处理不善将对生态环境造成严重危害。采用化学沉淀法处理母液中含磷化合物，研究了Fe/P摩尔比、初始pH、反应时间对Fe3+的除磷效果影响，优化了除磷条件，探讨了去除机理。结果表明：单一体系中增甘膦、草甘膦和亚磷酸去除的最佳条件存在明显区别。对这3种磷化合物，最优的Fe/P摩尔比分别为0.8∶1.0、1.2∶1.0和1.0∶1.0，最佳沉淀pH分别为1.5，1.5和3.5，沉淀平衡时间分别为30、30和30 min，最大去除率分别为99.8%，99.7%和99.6%。对草甘膦母液中总磷去除结果表明在Fe/P摩尔比为1.0∶1.0，沉淀pH为1.5，沉淀平衡时间为30 min的条件下，总磷去除率可达99.8%，处理后母液中总磷低于排放标准。
Abstract:
Glyphosate mother liquor contains phosphate compounds such as glyphosine, glyphosate, and phosphorous acid, etc. It is a typical waste liquid with high salt, high chemical oxygen demand (COD) and high phosphorus. Improper treatment may cause severe ecological hazards. In this study, phosphorus compounds in mother liquor were treated by chemical precipitation. The effects of Fe/P molar ratio, initial pH and reaction time on phosphorus removal by Fe3+ were studied. The removal conditions were optimized and the removal mechanism was discussed. The results showed that the optimal conditions for the removal of glyphosine, glyphosate, and phosphorous acid in a single system were obviously different. For these three phosphorus compounds, the optimal n(Fe)/n(P) ratios were 0.8∶1.0, 1.2∶1.0 and 1.0∶1.0, the optimal precipitation pH was 1.5, 1.5 and 3.5, the precipitation equilibrium time was all 30 min, and the maximum removal rates were 99.8%, 99.7% and 99.6%, respectively. For total phosphorus removal from glyphosate mother liquor, under n(Fe)/n(P) = 1.0∶1.0, pH 1.5, and 30 min reaction, the removal efficiency reached 99.8%, with residual phosphorus meeting discharge standards.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期：2024-12-12
基金项目：国家自然科学基金联合基金 (U24A2094)；湖北省自然科学基金创新团队项目 (2021CFA032)；湖北省自然科学基金创新发展联合基金 (2024AFD138)；湖北三峡实验室开放基金 (SK240009)；教育部产学合作协同育人项目（2408074419）
作者简介：安巧熙，硕士研究生。Email：1103327441@qq.com
*通信作者：余军霞，博士，教授。Email：yujunxia1979@163.com
引文格式：安巧熙，汪彦，陈宇驰，等. Fe3+对草甘膦母液中磷化物的去除研究［J］. 武汉工程大学学报，2025，47（4）：363-369.
更新日期/Last Update: 2025-08-29