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微电解集成的建筑湿地与海绵铁填充剂,同时增强和的去除
Xiaoxiao Hou1, Linglong Chu1, Yifei Wang1
1College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, PR China.
Bioresource technology
|June 8, 2023
概括
使用海绵铁 (e-SICW) 的新型微电解辅助建造湿地有效减少了氨积累,并改善了和的去除. 这种创新设计提高了废水处理效率,以实现更清洁的水排放.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 废水整治 废水整治 废水整治 废水整治
背景情况:
- 建筑湿地 (CWs) 在和去除方面存在局限性.
- 氨 (NH4+-N) 的积累和有限的总 (TP) 的去除是关键的挑战.
- 铁 (SI) 和微电解被单独使用,但面临效率问题.
研究的目的:
- 开发和评估使用SI作为围绕着阴极的填充物 (e-SICW) 的微电解辅助CW.
- 评估e-SICW在改善废水中和的去除方面的表现.
- 调查e-SICW对氨积累和整体处理效率的影响.
主要方法:
- 建立一个e-SICW系统,用SI作为阴极填充物.
- 电子SICW与传统的SI填充CW (SICW) 的比较.
- 废水分析NH4+-N,酸盐 (NO3--N),总 (TN) 和TP度.
- 微生物社区分析以确定关键的功能细菌.
主要成果:
- 与SICW相比,e-SICW显著减少了NH4+-N积累 (39.2-53.2%的下降).
- 在e-SICW中实现了高清除效率:95.7%的NO3--N,79.8%的TN,和98.0%的TP.
- 微生物分析表明,在e-SICW.中,自无氧化细菌 (Hydrogenophaga) 的丰富.
结论:
- 电子SICW系统有效地克服了单个SI和微电解处理的局限性.
- 这种综合方法提供了增强的和的去除,包括有问题的氨.
- 丰富特定的细菌,如Hydrogenophaga有助于提高e-SICW的性能.
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