快速去除,使用活生生的土著微藻群落,用于水处理应用
Amr Nasr Fekry1, Hazim Qiblawey1, Fares Almomani1
1Department of Chemical Engineering, Qatar University, Qatar.
Chemosphere
|October 30, 2025
概括
活生生的混合土著微藻 (MIMA) 有效地从水中去除,迅速达到89-94%的效率. 即使在营养有限的条件下,MIMA仍然是可行的和有效的,为水中污染提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 生物修复是一种生物修复.
- 微藻生物技术 微藻生物技术
背景情况:
- 污染对水生生态系统和人类健康构成重大威胁.
- 有效和可持续的生物修复策略对于减轻污染至关重要.
- 微藻有潜力去除重金属,但它们的效率和弹性需要进一步研究.
研究的目的:
- 调查活生生的混合土著微藻 (MIMA) 的生物修复潜力.
- 为了确定MIMA的去除效率,动力学和生物吸收能力.
- 评估MIMA在营养有限条件下的可行性和性能,并阐明底层机制.
主要方法:
- 使用MIMA在环境相关度 (10-100μg/L) 的生物修复实验.
- 动力和同热分析 (杜比宁-拉杜什凯维奇,伪二阶模型).
- 使用SEM,FTIR,XPS和光学显微镜进行高级表征.
主要成果:
- 在快速平衡 (2分钟) 的情况下,MIMA实现了高去除效率 (89-94%).
- 最大生物吸收能力为0.10mg/g在100μg/L;MIMA在没有营养物质的情况下维持了3天的生存能力和效率.
- 物理吸附占主导地位 (Dubinin-Radushkevich模型),由伪二次动力学建议的二次化学相互作用;通过光谱学证实了表面修饰和Hg (II) 结合.
结论:
- 活着的MIMA在水生环境中的生物修复过程中表现出了显著的效率和快速动力学.
- 在营养物质有限的条件下,MIMA表现出弹性和持续的性能,突出其强度.
- MIMA为水中污染提供了可持续和有效的解决方案,有效降低了含量.
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