有机酸盐从度高的水中被化纳米复合材料吸附的基于复合的选择性
Chenhao Ni1, Ningyi Chen1, Jiahui He1
1College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China.
Water research
|October 12, 2023
概括
一种新的基于的纳米复合材料有效地从高盐度废水中去除有机酸盐. 这种吸附剂显示出出色的容量和稳定性,为工业废水处理挑战提供了有希望的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 有机酸盐是废水中常见的工业污染物.
- 传统的去除方法与复杂的水矩阵和高盐度作斗争.
- 从盐水环境中有效地去除酸盐仍然是一个重大挑战.
研究的目的:
- 开发一种新型吸附剂,有效地从高盐度废水中去除酸盐.
- 研究开发材料的吸附能力和机制.
- 在连续流和再生研究中评估吸附剂的性能.
主要方法:
- 制造一种基于的纳米复合材料 (HNdO@PsAX) 通过在聚烯离子交换器 (PsAX) 中固定化氧化物 (HNdO) 纳米颗粒.
- 批量吸附实验以评估高盐度介质中的容量和干扰效应.
- 固定床柱研究用于持续治疗评估.
- 进行FT-IR和XPS分析以阐明吸附机制.
主要成果:
- HNdO@PsAX在8g/L NaCl中对1-乙烯-1,1-二酸 (HEDP) 显示出高吸附能力 (∼90.5 mg P/g-Nd),其性能优于基PsAX.
- 吸附受到常见的共存物质 (如酸,酸和EDTA) 的最小影响.
- 该纳米复合材料在固定床实验中成功处理了超过4500个床体积,并且可以再生.
- 在HEDP和HNdO之间的内部球体复合被确定为主要的吸附机制.
结论:
- 基于的纳米复合材料 (HNdO@PsAX) 在去除高盐度废水中的酸盐方面非常有效.
- 该材料具有出色的选择性,稳定性和可再生性.
- HNdO@PsAX为具有挑战性的工业废水处理应用提供了一个有希望的解决方案.
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