晚期滞后和指数阶段的蓝藻适合不同的前化和凝固策略
Xuanxuan Xian1, Chen Luo2, Gang Lian3
1College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Zhejiang Province Ecological Environment Monitoring Centre, Hangzhou, 310012, China.
Environmental pollution (Barking, Essex : 1987)
|December 14, 2024
概括
化前去除蓝藻细菌的有效性取决于它们的生长阶段. 根据生长阶段优化和凝固剂的应用对于水处理中有效控制蓝藻细菌至关重要.
科学领域:
- 环境科学 环境科学
- 水处理工程水处理工程
- 微生物学 微生物学
背景情况:
- 预化通常用于帮助凝血,用于处理被菌污染的水.
- 前化和随后凝固的有效性随着蓝藻细菌生长阶段的变化而变化,影响治疗结果.
- 了解这些相位依赖反应对于优化水净化过程至关重要.
研究的目的:
- 为了比较Microcystis aeruginosa (M. aeruginosa) 在前化后的不同生长阶段 (延迟和指数) 的凝血去除效率.
- 为了研究不同化前剂量对蓝藻细菌去除的影响.
- 阐明影响凝血效率的因素,与蓝藻细菌生长阶段和预处理相关.
主要方法:
- 晚期滞后和指数阶段的微囊菌菌种植物经过了0.0.5,1.0和2.0毫克/升剂量的预化.
- 使用聚化 (PACl) 进行了凝血.
- 测量了去除效率,pH,浮力,Zeta潜力和疏水性,以评估治疗有效性和影响因素.
主要成果:
- 晚期滞后阶段的M. aeruginosa与指数阶段 (1-60%) 相比,表现出明显更高的去除效率 (48-86%).
- 较低的pH值,降低的浮力,更高的Zeta潜力和增加的疏水性有利于晚期滞后阶段的凝血.
- 预 (0.5-2.0 mg/L) 由于释放的亲水性湿土,在延迟阶段没有增强凝血,但在指数阶段改善了凝血 (在2.0 mg/L 和15 mg/L PAC1时增加了40%).
结论:
- 菌生长阶段极大地影响了前化和凝固过程的有效性.
- 预可以阻碍晚期滞后阶段的凝血,但可以在M. aeruginosa的指数阶段促进凝血.
- 根据特定的蓝藻细菌生长阶段量身定制预和凝固剂应用策略,对于有效的水处理和微囊素控制至关重要.
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