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Updated: Jun 11, 2025

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Hydrogen Production and Utilization in a Membrane Reactor
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通过电化学水分裂生成的作为电子供体,用于从微污染的水库水中去除酸盐
Xinxin Shi1, Zhuolin Ma1, Stanislav A Evlashin2
1Shaanxi Key Laboratory of Environmental Engineering, Key Laboratory of Northwest Water Resource, Environment and Ecology, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Journal of hazardous materials
|September 29, 2024
概括
一个新的系统使用电解来生产气,以加强储水池中的脱. 这种方法显著提高了酸盐去除率,同时保持稳定的pH值和减少有机污染物.
科学领域:
- 环境科学 环境科学
- 水处理工程水处理工程
- 微生物学 微生物学
背景情况:
- 由于有机碳和有氧条件有限,微污染的水库水对传统的脱化提出了挑战.
- 在水库中总 (TN) 水平的升高经常超过监管标准,影响水质.
- 现有的脱方法在缺乏合适的电子捐赠体的储环境中往往是低效的.
研究的目的:
- 开发和评估一种新型系统,以有效地从微污染的水库水中去除酸盐.
- 为了研究使用现场生成的的小型提水和通风系统 (迷你WLAS) 的性能.
- 了解微生物动力学和环境参数影响开发系统中的脱化.
主要方法:
- 建设一个小型提水和通风系统 (迷你WLAS) 用于水库水处理.
- 在现场生产 (H2) 通过储水的电解,没有添加电解质.
- 在迷你WLAS内的有氧环境中培养性脱细菌 (HDB).
- 监测脱率,化合物 (NH4+-N,NO2--N,N2O),化学氧气需求 (CODmn) 和pH值.
- 微生物社区结构的分析,重点关注HDB的丰富性.
主要成果:
- 迷你WLAS的最大脱率为0.29 mg (L·d) -1,是对照组的6.04倍.
- 高水平的溶氧 (DO) (6-8毫克L-1) 并没有抑制被归因于空气性HDB的脱化.
- 显著减少CODmn (55.2%),NH4+-N,NO2--N和N2O的积累最小.
- 在整个过程中保持了稳定的近中性pH值.
- 与对照组相比,性无化细菌 (HDB) 的丰度增加了两个数量级.
结论:
- 迷你WLAS提供了一种有效和新的方法,用于从微污染的水库水中完全去除.
- 在现场生成的作为有效的电子捐赠者用于脱,即使在有氧条件下.
- 该系统展示了同时降低酸盐,去除有机物质和稳定的水化学的潜力.
- 这项技术为改善水库水质和解决肥胖问题提供了有前途的解决方案.
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