揭示了微藻-细菌共生系统中固定化的作用,用于从废水中去除营养
Lai Peng1, Minglei Shu2, Linchuan Fang3
1Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China; Shenzhen Research Institute of Wuhan University of Technology, Shenzhen 518000 Guangdong, China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China.
Bioresource technology
|August 10, 2025
概括
固定微藻和细菌可以增强废水中的污染物去除. 协同固定改善了总去除,提供了具有成本效益的废水处理和资源回收解决方案.
科学领域:
- 环境微生物学 环境微生物学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 在微藻-细菌系统中对固定作用的理解有限,用于去除污染物.
- 需要高效,具有成本效益的废水处理技术.
研究的目的:
- 研究悬浮,固定和联合固定微藻-细菌系统中的营养去除性能和途径.
- 评估酸盐固定对生物质回收和沉降速度的影响.
- 在不同的系统配置中确定细菌化和脱的贡献.
主要方法:
- 在三个系统中进行营养去除的比较:悬浮,固定和联合固定的微藻-细菌.
- 酸盐封装技术用于固定.
- 对总,和去除效率的分析.
- 评估生物质沉速度和化学氧气需求.
主要成果:
- 酸盐固定化产生了高效的生物质回收,沉降速度为1.88 cm s-1 .
- 由于质量转移的限制,联合固定实现了最高的总去除 (50%),但较低的氨去除 (84%).
- 细菌化是主要的氨去除途径,在各个系统中都有不同的贡献.
- 在所有系统中通过微藻同化观察到完全的去除 (>90%).
- 协同固定增强了细菌脱 (17%) 促进了更高的总去除.
结论:
- 藻土固定提供高效的生物质回收和解决废水处理.
- 协同固定增强了通过改进的脱的总去除,尽管的潜在质量转移限制.
- 固定化的微藻-细菌系统为同时处理废水和资源回收提供了可行的替代方案,并降低了分离成本.
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