相关实验视频
Updated: Jun 16, 2025

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Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
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电化学和生物电化学回收从N载荷流使用疏水膜膜
Zainab Ul1, Mariella Belén Galeano1, Mira Sulonen1
1GENOCOV, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain.
Bioelectrochemistry (Amsterdam, Netherlands)
|June 13, 2025
概括
生物电化学系统有效地从废水中回收氨,产生缩气流. 优化正极电极和操作条件实现了高回收率,证明了可持续管理的潜力.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 废水处理 废水处理
背景情况:
- 生物电化学系统 (BES) 从废水中提供低能耗的氨回收.
- 缩气流是有价值的副产品.
- 优化BES对于有效的氨去除和回收至关重要.
研究的目的:
- 研究用于回收的正极电极配置.
- 优化运行条件 (电流强度,氨度,应用潜力).
- 确定带有疏水膜的三室BES的性能值.
主要方法:
- 测试了不同电流强度 (50-75 mA) 和初始氨度 (0.3-3 g L-1 N-NH4+) 的非生物电化学系统.
- 使用基于的气体扩散电极 (GDE) 和分离的阴极 (不钢,泡) 在不同的应用电位 (0.8-1.4V) 进行评估的生物电化学氨去除/回收.
- 测量氨的回收率 (Rrec) 和去除率 (Rrem).
主要成果:
- 75mA的电流实现了55gN-NH4+m−2d−1的最大回收率,从3gL−1初始度中去除了97%的.
- 1.4V的不钢正极产生了最高的去除率 (21gN-NH4+ m−2 d−1) 由于增加了电流密度和离子迁移.
- 这导致回收率为17 gN-NH4+ m−2 d−1.1.
结论:
- 带有疏水膜的三室BES配置对回收有效.
- 阴极材料和应用潜力显著影响氨去除和回收效率.
- 优化条件证明了废水中可持续和高效的管理的潜力.
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