电力生产性能和MFCs的pH优化使用丰富的粉降解培养
Sheng-Chao Gao1, Hui-Chun Jiang1, Zhen Zhang1
1Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi Province 712100, P.R. China.
iScience
|March 3, 2025
概括
这项研究开发了一个电活性微生物联盟 (EHN) 用于处理粉废水. 对于粉降解和发电的最佳性能发生在pH值9.0时.
科学领域:
- 环境微生物学 环境微生物学
- 电化学 电化学 电化学
- 废水处理 废水处理
背景情况:
- 未经处理的粉生产废水破坏了水生生态系统.
- 微生物联盟为生物修复和生物能源生产提供了潜力.
研究的目的:
- 用电化学和粉降解能力丰富混合培养 (EHN).
- 为了研究pH值对废水处理和生物电力发电的EHN性能的影响.
主要方法:
- 混合微生物培养 (EHN) 的丰富.
- 在pH值范围为5.5-9.5.5的范围内培养EHN.
- 测量电化学参数 (电流密度,功率密度,电压).
- 使用高性能液态染色学 (HPLC) 分析粉降解和酸盐生产.
- 微生物群体分析 (主要属的鉴定).
主要成果:
- 在pH值5.5-9.5.5的情况下,EHN表现出增长.
- 最大电流密度 (556.83 μA cm−2),功率密度 (1,499.93 mW m−2) 和电压 (631.00 mV) 在pH值9.0时实现.
- 在pH值9.0下,Bacillus是占主导地位的基因.
- 在pH 9.0下,HPLC分析表明粉降解和酸盐生成速度更快,这是由于粉酶活性增加.
- 与中性pH值 (7.2) 相比,更高的pH值 (9.0) 显著提高了EHN的发电量.
结论:
- 丰富混合培养 (EHN) 显示出同时处理粉废水和产生生物电力的巨大潜力.
- 性pH值 (pH9.0) 条件优化了EHN的代谢活动,导致增强粉降解和增加电力输出.
- 这项研究强调了一种有希望的生物电化学方法,用于可持续地管理粉行业的废水.
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