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Updated: Jul 23, 2025

Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
轻稀土元素对Anammox工艺的长期影响
Xingxing Xiong1, Yun Li2, Xin Yang1
1School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang, 330013, China.
新 (Nd(III)) 显著抑制无氧氧化 (Anammox) 细菌,在高度下导致Anammox反应堆崩. 洗EDTA-2Na有效地恢复了去除,这对于处理受污染的废水至关重要.
科学领域:
- 环境科学 环境科学
- 环境生物技术 环境生物技术
- 废水处理 废水处理
背景情况:
- 含有新的氨废水因稀土矿产开采和磁处理而增加.
- 新 (Nd(III)) 对生物废水处理过程 (如Anammox) 构成潜在威胁.
研究的目的:
- 为了研究 Nd ((III) 对 Anammox 性能,动力学,微生物群落和污泥形态学的影响.
- 评估EDTA-2Na作为Nd(III) 抑制Anammox过程的恢复策略.
主要方法:
- 在不同度的Nd(III) 下监测Anammox反应堆的性能.
- 毒性评估的基础是Nd(III) 细胞内化.
- 使用修改的博尔兹曼模型进行动力建模.
- 通过16S rRNA基因测序进行微生物社区分析.
- 使用SEM和EDS进行泥形态检查.
主要成果:
- 亚纳莫克斯反应堆的效率在20和40毫克L-1Nd下崩.
- 在30天内,EDTA-2Na冲洗使TNRR恢复到最初值的41.60%.
- Nd(III) 降低了关键的Anammox细菌 (Planctomycetes,Candidatus Brocadia) 的丰富性.
- 在Anammox污泥上观察到类似晶体的粒子.
结论:
- Nd(III) 对Anammox细菌具有毒性,其值低于20毫克L-1.1.
- EDTA-2Na是一种有效的策略,用于恢复由阻的Anammox过程.
- 了解的毒性和实施回收策略对于处理含有的废水至关重要.
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