使用电助力自营养过程进行地下水脱化:在单反应堆中探索细菌社区动态
Javiera Toledo-Alarcón1, Eduardo Ortega-Martinez1, Javier Pavez-Jara2
1Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Viña del Mar, Chile.
Frontiers in bioengineering and biotechnology
|February 6, 2025
概括
生物电化学反应堆 (BER) 有效地从地下水中去除酸盐. 应用1V在4天内实现了完全的酸盐去除,展示了为更清洁的饮用水提供环保解决方案.
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:
- 地下水中的酸盐污染是一个重大的环境和健康问题.
- 生物电化学反应器 (BER) 提供了一种可持续的方法,通过微生物脱去除酸盐.
- 了解微生物动态和操作参数对于优化BER效率至关重要.
研究的目的:
- 评估两批不同电压 (1V和2V) 的生物电化学反应器 (BER) 对从地下水中去除酸盐的有效性.
- 为了分析细菌社区在脱过程中发生的变化.
- 评估使用简单,无膜设计的BER用于地下水整治的可行性.
主要方法:
- 两批生物电化学反应堆 (BER) 在1V和2V下运行,并配有控制系统.
- 无氧消化剂作为注射剂.
- 监测包括酸盐,亚酸盐,硫酸盐,总氨和16SrRNA基因测序用于细菌社区分析.
主要成果:
- 1V和2V BER都显示出有效的酸盐去除,性能优于对照组.
- 将酸盐完全转化为气 (N2) 在1V时4天,在2V时14天内实现.
- 细菌分析确定了诸如*Desulfosporosinus*和*Leptolinea*等电活性属,并且*Hydrogenophaga*在2V时得到增强.
- 没有观察到硫酸盐或总氨的显著减少.
结论:
- 生物电化学反应器在地下水整治过程中有效进行自性脱.
- 与2V相比,1V的配置显示出更快的酸盐去除动力学,这可能是由于在更高的电压下抑制氧气.
- 该研究证实了使用传统电源用于地下水处理的无膜BER系统扩展的潜力.
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