微藻-细菌中的单个和混合微藻的比较MB-MBR:从废水处理的效率,生物活性和膜污染
Hao Zhang1, Yi Ding2, Huishan Hou1
1Marine College, Shandong University, Weihai, 264209, China.
Journal of environmental management
|May 11, 2025
概括
混合微藻-细菌生物反应器有效处理废水. 使用特定的微藻和细菌的L2系统,通过增强生物膜形成,实现了高营养物质的去除和减少膜污染.
科学领域:
- 环境生物技术 环境生物技术
- 微生物学 微生物学
- 水处理工程水处理工程
背景情况:
- 污水处理面临的挑战是效率和膜污染.
- 微藻-细菌共同培养为增强生物废水处理提供了一种可持续的方法.
- 移动床膜生物反应器 (MB-MBR) 将生物处理与膜过相结合.
研究的目的:
- 评估和比较两种微藻-细菌MB-MBR用于废水处理的性能.
- 为了研究营养去除效率,生物活性和膜污染特征.
- 了解细胞外聚合物 (EPS) 和生物膜形成在MB-MBR性能中的作用.
主要方法:
- 两个MB-MBR的建设和运营,具有不同的微藻联盟 (L1和L2) 和活性污泥.
- 监测营养物质的去除 (氨,TOC,COD) 和生物活性 (DHA).
- 使用3D-EEM分析污泥形态,EPS成分 (蛋白质,多糖),使用XDLVO理论分析膜污垢.
主要成果:
- 两种MB-MBR都表现出强大的性能,其中L2表现出卓越的功能.
- L2实现了几乎完全的氨去除 (99.33%),高TOC (73.72%) 和COD (92.93%) 的去除.
- L2表现出更高的脱酶活性,更紧的污泥,减少了膜污垢.
- 在EPS中的蛋白质和多糖,特别是酸和芳香蛋白质,影响了生物膜的形成和污染.
结论:
- 混合微藻-细菌MB-MBR协同增强废水处理效率.
- 由于其特殊的微藻-细菌混合,L2系统提供了卓越的性能和减少了膜污染.
- EPS组成和生物膜特征是MB-MBR运行和膜寿命的关键因素.
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