在有氧膜生物反应器 (aMBR) 中使用回收超膜:一个验证研究
Laura Rodríguez-Sáez1,2, Junkal Landaburu-Aguirre1, Eloy García-Calvo1,2
1IMDEA Water Institute, Av. Punto Com, 2, Alcalá de Henares, 28805 Madrid, Spain.
Membranes
|July 26, 2024
概括
回收超过 (r-UF) 膜为有氧膜生物反应器 (aMBR) 提供了可持续且具有成本效益的解决方案. 这些r-UF膜表现出卓越的性能,与商业选择相美,减少了污染和改善了废水处理中的稳定性.
科学领域:
- 环境科学与工程环境科学与工程
- 水处理技术水处理技术
- 膜科学与技术 膜科学与技术
背景情况:
- 空气膜生物反应器 (aMBR) 对于先进的废水处理至关重要.
- 膜污染和更换是aMBR中的重大运营挑战.
- 在aMBR中使用回收膜之前没有得到验证.
研究的目的:
- 在aMBR系统中验证回收超 (r-UF) 膜的性能.
- 与商业UF膜相比,评估r-UF膜的污染行为和透质量.
- 评估r-UF膜作为可持续和成本有效的替代品的潜力.
主要方法:
- 对四种聚硫 (PES) 膜进行实验验证:r-UF,改性r-UF (mr-UF),商用150 kDa (c-150 kDa) 和商用20 kDa (c-20 kDa).
- 测试是在aMBR设置中使用合成城市废水进行的.
- 膜表征涉及SEM,AFM,EDX和CLSM;透性,污垢和透质量得到评估.
主要成果:
- r-UF和mr-UF膜实现了优异的透质量,与商业膜相美.
- 随着时间的推移,r-UF和mr-UF膜表现出更稳定的性能.
- r-UF膜显示出明显较低的污染倾向 (Rf) 和出色的抗生素污染特性.
结论:
- 回收超膜是 aMBR 中废水处理的可行和有效的选择.
- r-UF膜为商业膜提供了一个可持续且具有成本效益的替代品.
- 实施r-UF膜可以帮助减轻膜污染,降低更换成本.
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