用铁改性大麦草生物炭从水中去除酸盐和酸盐
Sepideh Ansari1,2, Ricardo Bello-Mendoza3, Aisling O'Sullivan1,2
1Department of Civil and Environmental Engineering, University of Canterbury, Private Bag, 4800, Christchurch, 8140, New Zealand.
Environmental science and pollution research international
|January 27, 2026
概括
用铁改性大麦草生物炭 (Fe-BSBC) 有效地从水中去除酸盐和酸盐. 这种可持续吸附剂显示出高容量,并支持环保的水处理解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 水的化学 水的化学
背景情况:
- 水中过度的酸盐和酸盐会导致严重的环境和健康问题.
- 有效和可持续的水处理方法对于污染物去除至关重要.
研究的目的:
- 为了评估铁改性大麦草生物炭 (Fe-BSBC) 从水中去除酸盐和酸盐的效率.
- 研究吸附机制和影响污染物去除的因素.
主要方法:
- 进行了批量吸附实验,以测试Fe-BSBC的性能.
- 通过改变接触时间,pH值,吸附剂剂量和竞争性离子来优化吸附.
- 用同热和动力模型 (Sips,伪二阶) 分析了吸附数据.
- 用特征技术 (FTIR,EDS,XRD) 和泽塔电位测量来阐明吸附机制.
主要成果:
- -BSBC的吸附能力为酸盐13.7 mg/g,酸盐2.0 mg/g.
- 最佳条件包括pH6.5,酸盐的剂量为5g/L,酸盐的剂量为15g/L.
- 酸盐在8小时内达到吸附平衡,酸盐在24小时内达到吸附平衡.
- Sips模型和伪二阶动力学最好地描述了吸附过程,表明了多层化学吸附.
- 酸盐的去除主要是通过静电吸引,而酸盐的去除则涉及连接物交换和静电相互作用.
结论:
- Fe-BSBC 是一种高效的吸附剂,可以从水中去除酸盐和酸盐.
- 该研究确定了关键机制,包括静电吸引和带交换.
- Fe-BSBC为可持续的水处理提供了具有成本效益和可扩展的解决方案,与可持续发展目标保持一致.
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