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从水中有效地去除离子,使用高化物改性颗粒活性炭

Ying-Ju Chang¹, Chihpin Huang², Jo-Shu Chang³

¹Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan.

Journal of environmental management

|December 10, 2024

概括

这项研究引入了ClO修饰的活性炭,以有效地去除饮用水中的. 这种新的方法显著提高了的吸附能力,为水处理提供了切实可行的解决方案.

科学领域:

环境科学环境科学
水处理技术水处理技术
材料科学材料科学材料科学

背景情况:

传统的水处理厂往往忽视了清除的效率.
饮用水中的可以引起美学问题和潜在的健康问题.
活性炭是一种广泛使用的吸附剂,但其对的效率各不相同.

研究的目的:

研究化物 (ClO) 改性活性炭在从原水中有效去除 (Mn) 的潜力.
描述改性活性炭对Mn2+的吸附能力和机制.
在模拟饮用水条件下评估改性活性炭的性能.

主要方法:

用高化 (NaClO) 修改颗粒状活性炭.
在不同条件下 (度,pH,温度) 确定Mn2+吸附能力的吸附实验.
动力学和平衡研究,以了解吸附行为.
涉及化学复杂化分析的机制研究.
容器测试用于评估在Fe2+等竞争性离子存在时的性能.

主要成果:

用NaClO修饰的活性炭显示Mn2+吸附能力显著增加 (在50 mg/L初始Mn度下从4.28至28.1 mg/g).
最佳吸附发生在pH7,25°C时,在较高的ClO−和Mn2+度下观察到更高的吸附能力,在35°C时达到峰值.
通过ClO−修饰促进的碳表面C=C键的化学复合被确定为增强Mn2+吸附的主要机制.
改性活性炭在Fe2+的存在下有效地完全去除了0.3 mg/L Mn2+和1 mg/L Mn2+的98%以上.

结论:

用化 (ClO) 改性活性炭显示了在饮用水处理中高效去除的巨大潜力.
修改过程通过化学复合增强了吸附能力,为传统方法提供了更好的替代方案.
使用NSF认证的材料使这种改性活性炭成为生产安全饮用水的可行和实用的解决方案.

关键词:

吸收剂是一种吸收剂.低化物是什么? 低化物是什么?是一种.修改后的生物碳移除移除移除移除

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