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双重向和COD去除工程氨基修饰的热,具有pH自我调节和竞争性吸附选择性

Yunnen Chen¹, Qinglong Liu², Yuting Li²

¹Jiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science & Technology, No. 156 Kejia Ave., Ganzhou, Jiangxi, 341000, P.R. China. 9120030007@jxust.edu.cn.

Scientific reports

|November 20, 2025

概括

这项研究开发了氨基基改性焦化物 (AMZ) 来从水中去除总 (TP) 和化学氧需求 (COD). AMZ有效地在广泛的pH范围内共同去除这些污染物,并且可再生,为水资源整治提供了具有成本效益的解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
吸附科学吸附科学

背景情况:

增加的总 (TP) 和化学氧需求 (COD) 会降低地表水质量,导致溶解氧耗尽和环氧化.
传统的水处理方法往往难以同时去除TP和COD,需要创新的解决方案.

研究的目的:

设计和优化一种胺基修饰的化物 (AMZ) 吸附剂,以有效地从污染水中共去除TP和COD.
在各种水矩阵和pH条件下研究AMZ的性能,稳定性和选择性.

主要方法:

采用直角实验设计,以优化石与氨基群的功能化,专注于氨基类型,度和温度.
吸附实验在单元和竞争式二元系统中进行,以评估TP和COD去除效率.
扫描电子显微镜 (SEM) 用于描述AMZ吸附剂的形态.

主要成果:

优化的AMZ在广泛的pH范围 (3-10) 中实现了90%以上的TP和80%以上的COD去除效率.
通过使用NaCl,AMZ证明了出色的再生能力,在多个循环中保持了高的去除效率.
吸附剂表现出特定位点的选择性,静电位点结合酸盐和离子交换位点结合酸盐离子 (一个关键的COD成分).

结论:

胺基改性焦化物 (AMZ) 是一种高效和可再生的吸附剂,用于在水处理中同时去除TP和COD.
AMZ提供了接近中性的稳定运行pH值,并显示了复杂的废水矩阵中的应用的希望.
由于AMZ的成本效益优势和独特的选择性,它被认为是用于水处理的商业吸附剂的可行替代品.

关键词:

氨基胺修饰的焦化.化学氧气需求化学氧气需求有竞争力的吸附.静电吸引力是一种静电吸引力.离子交换离子交换清除的方法是去除.

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