通过电解生物炭生物过器的低度的去除能力,铁和形式以及微生物分布
Yan Gao1, Yuanyuan Jin1, Jiawen Mei1
1School of Environment Science and Engineering, Nanjing Tech University, Nanjing, 211816, China.
Journal of environmental management
|November 15, 2025
概括
这项研究表明,铁阳极电解和生物炭有效地去除 (P). 电解释放的铁离子与生物炭结合,显著提高了水处理中的P去除效率.
科学领域:
- 环境工程 环境工程
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
背景情况:
- (P) 污染是一个主要的环境问题,需要先进的水处理解决方案.
- 传统的P去除方法通常面临效率和成本效益的局限性.
- 生物炭和电化学方法对P的去除有希望,但它们的联合有效性需要进一步研究.
研究的目的:
- 研究铁阳极电解和生物炭基质在从水中去除的协同效应.
- 为了阐明由铁载生物炭介导的增强P去除背后的机制.
- 为了评估铁阳极电解生物炭生物过器在不同操作条件下的性能.
主要方法:
- 使用分布式废水的铁阳极电解生物过器的建造和运行.
- 电化学分析包括循环电量计 (CV) 和电化学阻抗光谱 (EIS).
- 使用X射线粉末衍光仪 (XRD) 进行材料表征,并通过16SrRNA测序对微生物群落进行分析.
主要成果:
- 铁阳极电解被确定为P去除的主要驱动因素,在5V下达到高达98.37%的PO43-P去除.
- 生物炭有效吸附释放的铁离子 (Fe (II) /Fe (III)),其铁负荷为4.3 ± 0.62 mg/g生物炭.
- 含铁的生物炭 (含FeOOH和Fe3O4) 即使在关机条件下也显示出高P去除率 (95.92%±2.61%),促进酸盐固定并改善P资源利用.
结论:
- 铁阳极电解和生物炭生物过的联合系统提供了一种高效和强大的去除方法.
- 生物炭作为电化学释放铁的有效吸附剂和微生物载体,增强了整体P的去除.
- 该研究强调了含铁生物炭在可持续管理和资源回收方面的潜力.
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