通过g-C3N4纳米粒子介导的新型光催化细菌-藻类合系统:微生物比对性能和微生物群的影响
Zhijun Ren1, Peng Sun2, Huixue Li2
1School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China; School of Chemical Engineering and Technology, Xinjiang University, Xinjiang 830017, China.
Bioresource technology
|September 12, 2025
概括
在石墨碳化物增强系统中,细菌与藻类的均衡1:1比率优化了废水处理. 这种协同作用促进了营养物质的去除和微生物聚合,以实现可持续的水资源整治.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 先进的废水处理需要有效的营养去除和微生物社区管理.
- 石墨碳化物 (g-C3N4) 显示出增强光催化降解过程的潜力.
- 细菌-藻类共生系统为水治理提供了一种可持续的方法.
研究的目的:
- 通过g-C3N4.4研究不同细菌-藻类比对废水处理效率的影响.
- 分析对营养物质去除,微生物聚合和社区结构的影响.
- 了解在共生系统中提高性能背后的机制.
主要方法:
- 使用g-C3N4增强的细菌藻类系统的测序批量反应器.
- 测试了三种细菌-藻类比: 10: 1, 5: 1 和 1: 1.
- 评估化学氧气需求 (COD) 和氨去除,微生物聚合 (EPS) 和社区动态 (微生物分析).
主要成果:
- 1:1比率 (R3) 实现了最佳性能:98.7%的COD去除和92.4%的氨去除.
- 通过增加的细胞外聚合物物 (EPS),R3显著增加了微生物聚合,减少了静电排斥.
- 微生物概况显示蛋白质细菌和蓝藻细菌增加,促进同化和综合降解途径.
结论:
- 在g-C3N4增强废水处理中,平衡的细菌-藻类比对优化共生相互作用至关重要.
- 1:1比率促进了有效的营养物质去除,微生物稳定性和协同降解机制.
- 这项研究为开发可持续和节能水利技术提供了洞察力.
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