通过商业吸附剂吸附性去除矿和
Sevda Joudiazar1, Sushma Yadav1, Zhiming Zhang2
1Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA.
Materials (Basel, Switzerland)
|November 27, 2025
概括
商用吸附剂有效地从地下水中去除有毒的和. 过SORB-400和SORB-100分别显示出高和酸盐的容量,表明有希望的整治解决方案.
科学领域:
- 环境科学 环境科学
- 水的化学 水的化学
- 材料科学 材料科学 材料科学
背景情况:
- 像和这样的重金属由于它们的移动性和地下水中的生物积累,造成了严重的环境和健康风险.
- 有效的清除策略对于减轻这些污染物对水资源的影响至关重要.
研究的目的:
- 评估商业上可用的吸附剂 (Fluorosorb-100,Fluorosorb-200,Filtrasorb-400) 的吸附性能,以去除酸盐 (As(III)) 和 (Co(II)).
- 为了确定地下水修复应用的最佳过介质.
- 了解所选剂的吸附机制和结合特性.
主要方法:
- 动力分析以确定吸速率和对 (III) 和 (II) 的反应顺序.
- 均衡等热模型 (Langmuir和Freundlich) 用于评估吸附能力和亲和力.
- 吸附性研究,以评估金属与吸附剂结合的可逆性.
主要成果:
- 作为 (III) 的吸附遵循了伪二阶动力学模型,而Co (II) 则表现出混合阶动力学.
- 朗穆尔和弗罗恩德利希模型都与数据相对相关,表明异质吸附点和多层相互作用.
- sorb-100显示出对As(III) 的亲和力最高 (qm = 0.46 mg/g),而Filtrasorb-400显示出对Co(II) 的最大容量 (qm = 1.00 mg/g).
- 与其他吸附剂相比,FS-200对两种金属的吸附能力较弱.
- 溶解研究显示,这两种金属的结合主要是不可逆转的,观察到的释放最小.
结论:
- 商业上可用的吸附剂有效地从污染的地下水中去除酸盐和.
- 过sorb-400和sorb-100在Co (II) 和As (III) 整治方面特别有前景.
- 这些发现支持使用这些吸附剂作为成本效益和可扩展的解决方案,用于在地下水整治系统中去除重金属.
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