快速吸附:聚化 (PAC) 改性玻璃石灰 (MPAC-G) 具有特殊的可再生性,用于低度水产养殖废水
Junming Li1, Jie Yang2, Xiangying Wei2
1Institute of Oceanography, Department of Geography and Oceanography, Minjiang University, Fuzhou, China; College of Environment & Safety Engineering, Fuzhou University, Fuzhou, China.
Environmental research
|December 20, 2025
概括
这项研究介绍了MPAC-G,一种由回收玻璃制成的新型吸附剂,有效地从水产养殖废水中去除. 它表现出优越的吸附率和容量,为营养管理提供了可持续的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废弃物价值化 废弃物价值化 废弃物价值化
背景情况:
- 水产养殖废水由于大量和低度而构成重大挑战.
- 现有的去除方法在大型水产养殖业务中往往是低效或昂贵的.
研究的目的:
- 开发和评估一种新型的巨孔玻璃石吸附剂 (MPAC-G) 用聚化 (PAC) 修饰,以有效去除.
- 为了比较MPAC-G与其他改性玻璃石膏和原始玻璃石膏的性能.
主要方法:
- 从回收废玻璃中合成巨孔玻璃石灰,用聚化 (PAC) 修饰.
- 使用不同度的酸盐进行吸附实验,并评估去除效率和动力学.
- 使用朗格穆尔等热量,伪二次动力学,拉曼,FTIR和XPS的吸附剂的表征.
- 在多个循环中评估吸附剂的再生和可重复使用性.
主要成果:
- MPAC-G在2小时内表现出最高的去除效率,在最初的10分钟内吸附率比原始玻璃石快19倍.
- 兰穆尔异温表示单层化学吸收,伪二次动力学显示高速率常数 (1.2 g mg-1 min-1) 和短半衰期 (7.13 分).
- 酸盐和金属活性位点之间的共价键被确定为主要的去除机制,由静电相互作用支持.
- 性再生允许MPAC-G超过其最初的吸附能力,在五个周期中保持高效率.
结论:
- MPAC-G 是一种高效,可持续的吸收剂,用于从水产养殖废水中去除,它来自回收废玻璃.
- 与现有材料相比,吸附剂在吸附率,容量和可再生性方面表现出卓越的性能.
- 这项研究提出了一种有前途的方法,用于将废弃物利用成用于环境修复的功能吸附剂.
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