使用 sepiolite-MgO纳米复合材料有效地从水环境中去除和:制备,表征,去除性能和机制
Sheng-Hui Yu1, Xin-Yi Feng2, Mei-Ying Fan2
1School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China. yu2008hefei@163.com.
Environmental science and pollution research international
|February 11, 2024
概括
一种新型的 sepiolite 支持的 MgO (S-MgO) 纳米复合材料有效地从水生环境中去除酸盐. 这种具有成本效益的材料还可以去除氨,为废水处理和水资源管理显示出前景.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 过多的会导致水生生态系统的环氧化.
- 高效的除对于废水工程和地表水管理至关重要.
研究的目的:
- 制造一个类似纳米的MgO (S-MgO) 纳米复合材料,以有效去除酸盐.
- 为了研究S-MgO在各种条件下的性能,并探索去除机制.
主要方法:
- 微波辅助制造和化S-MgO纳米复合材料.
- 批量实验研究pH的影响,吸附剂剂量,接触时间,初始酸盐度,Ca2+添加和N/P比.
- 用于 struvite 识别的定量和定性分析.
主要成果:
- 在广泛的pH范围 (3.010.0) 中,S-MgO证明了有效的酸盐去除 (02.0 mM).
- 纳米复合材料同时去除了高容量的酸盐和 (> 2.0 mM) (188.49 mg P/g 和 89.78 mg N/g).
- 在高酸盐废水中证实了斯特鲁维特结晶.
结论:
- 该S-MgO纳米复合材料提供高效和成本效益的酸盐去除.
- 协同吸附和斯特鲁维特结晶机制提高了去除效率.
- 在水生环境中,S-MgO对管理具有显著的潜力.
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