通过Fe/Al复合物与从残留污泥中提取的细胞外聚合物的多态去除的性能和机制
Jingyun Ge1, Yasong Chen2, Yunpeng Zhao2
1State Key Laboratory of Regional Environment and Sustainability, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
Journal of environmental management
|December 2, 2025
概括
这项研究使用废水污泥与细胞外聚合物 (Fe/Al-EPS) 产生Fe/Al复合物,以有效地去除多种形式的. 这种方法解决了污泥废物和废水处理中严格的标准.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废水处理技术 废水处理技术
背景情况:
- 人们越来越担心废水处理厂 (WWTP) 的残渣污泥.
- 对排放的越来越严格的法规需要先进的去除方法.
- 需要可持续的污泥利用和管理解决方案.
研究的目的:
- 从城市废水污泥中用细胞外聚合物 (Fe/Al-EPS) 制备和表征Fe/Al复合物.
- 评估Fe/Al-EPS在废水中去除多种形式的有效性.
- 建立除性能评估框架,并确定关键影响因素.
主要方法:
- 使用城市废水污泥作为原材料.
- 用细胞外聚合物 (Fe/Al-EPS) 制备的Fe/Al复合物.
- 使用FTIR和ICP-OES分析了构成表面特性.
- 应用了因子分析来建立去除性能评估框架.
主要成果:
- 在Fe/Al-EPS中,有高的无机的去除率 (约. 94%) 和颗粒 (87.36%) 的含量.
- 显著地去除了溶解的有机 (约. 达到了69.67%) 的目标.
- 总度从3-4毫克/升降至0.50毫克/升以下.
- 电中和复杂化被确定为关键的去除因素.
结论:
- Fe/Al-EPS是一种有效的材料,用于从废水中多种形式的去除.
- 该研究提供了一种用于选除材料和再利用污泥的新方法.
- 这些发现有助于可持续的废水处理和资源回收.
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