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增加的阴极水平对微生物燃料电池中阳极COD去除效率和生物电力产生的影响

Sudipa Bhadra¹, Vijaya Raghavan², Surajbhan Sevda³

¹Environmental Bioprocess Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal, 506004, Telangana State, India.

Environmental science and pollution research international

|March 21, 2025

概括

这项研究证明了微生物燃料电池 (MFC) 中的同时化和脱化 (SND),以实现高效的废水处理和生物发电. 在闭路模式下,化的最佳度为2g/L,产生了最高的功率和污染物去除.

科学领域:

环境科学环境科学
电化学电化学电化学
微生物学微生物学

背景情况:

在微生物燃料电池 (MFC) 中同时化和脱化 (SND) 为处理富含的废水提供了一种节能替代方案.
复合电池将废水处理与生物电力发电相结合,与传统方法相比降低了运营成本.

研究的目的:

研究SND在双室MFC中的有效性,用于处理富含的合成废水 (NRSW) 和产生生物电力.
确定最佳化 (NH4Cl) 度,以最大限度地提高功率输出和污染物清除效率.

主要方法:

一个双室的MFC在阳极中使用富含碳的合成废水 (CRSW),在阴极中使用NRSW (1,2,和3g/L NH4Cl).
在封闭电路 (CCV) 和开放电路 (OCV) 模式中进行了实验,以比较性能.
测量的主要参数包括电池电压,电流密度,功率密度,COD,TKN,化物和酸盐去除. 进行了微生物社区分析.

主要成果:

CCV-2配置 (2g/L NH4Cl,闭路) 实现了最高的电池电压 (80.56 mV),电流密度 (23.69 mA/m2) 和功率密度 (12.97 mW/m3).
在CCV-2中观察到最佳的去除效率:COD的90.25%,TKN的92.18%,酸盐的85.78%,酸盐的86.53%.
较高的NH4Cl度 (3g/L) 抑制了外电致细菌,降低了去除速度和功率. 封闭电路操作的性能优于开放电路.

结论:

在MFC中同时化和脱化是一种可行和高效的废水处理和生物能源生产技术.
在闭路模式下NH4Cl度为2g/L,代表了最大化MFC系统性能的最佳条件.
在阴极室中占主导地位的微生物属包括Brevendimonas,Sphingomonadaceae和Achromobacter.

关键词:

生物电力是一种生物电力.微生物燃料电池微生物燃料电池同时进行化和脱.总的氨基的总量基尔达尔的总.

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