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Updated: May 12, 2025

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交替电流驱动的生物电极用于加强从硫化物丰富的有机废水中去除硫化物
Ye Yuan1, Xing Zong1, Jiayi Huang1
1School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, PR China.
Journal of environmental management
|May 9, 2025
概括
本研究引入了交流电 (AC) 生物电极,以有效地从废水中去除硫化物. 交流系统实现了高的去除率,减少了能源消耗,并促进了有益的微生物活动,以实现可持续的处理.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 电化学 电化学 电化学
背景情况:
- 传统的生物废水处理方法在有效去除硫化物方面面临着挑战.
- 富含硫化物有机废水带来了严重的环境和运营问题.
- 直流 (DC) 生物电极系统在硫化物清除效率和电极污染方面存在局限性.
研究的目的:
- 开发一个创新的和可持续的生物电极系统,以有效地去除硫化物.
- 为了研究交流电 (AC) 生物电极的性能,用于处理富含硫化物有机废水.
- 为了比较交流生物电极方法与传统直流 (DC) 系统.
主要方法:
- 使用交流电 (AC) 驱动的生物电极进行周期性微生物氧化和减少.
- 应用了AC生物电极来处理富含硫化物有机废水.
- 分析了硫化物去除,元素硫生产,化学氧需求 (COD) 去除和能源消耗.
- 通过酶基因表达特征分析,研究生物膜形成,电催化活性和微生物社区组成.
主要成果:
- 实现了93.2%的硫化物去除,64.5%的元素硫生产,75.8%的化学氧需求 (COD) 去除.
- 与传统方法相比,能源消耗下降了25%.
- 交流刺激有效地减轻了元素硫的积累,并促进了生物膜的殖民.
- 增强双向电催化活性,从而提高活性生物质和电子利用效率.
- 丰富的功能性微生物组具有氧化硫,减少硫和电子运输能力.
结论:
- 交流生物电极为处理富含硫化物有机废水提供了一种高效和可持续的解决方案.
- 交流系统通过增强微生物活动和减少污染来克服直流系统的缺点.
- 这种方法提供了资源效率和改善的废水处理性能.
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