通过将功能性细菌添加到Sesuvium portulacastrum建造的湿地中,提高了低碳盐水废水中的提取的能力
1Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, China.
Ecotoxicology and environmental safety
|July 7, 2023
概括
功能性的细菌群体显著提高了建筑湿地中的去除. 这提高了废水处理的效率,提高了溶解的总,酸盐,酸盐和的去除效率.
科学领域:
- 环境微生物学 环境微生物学
- 水处理技术水处理技术
- 生物地质化学循环的过程
背景情况:
- 功能性细菌群落 (FBC) 对于生态系统中营养循环至关重要.
- 建筑湿地利用植物微生物相互作用来处理废水.
- 清除是废水管理的一个关键挑战.
研究的目的:
- 为了研究生物膜电极反应器中的FBC如何在Sesuvium potulacastum构建的湿地中增强去除.
- 为了阐明由FBCs增强的去除的潜在机制.
主要方法:
- 使用上游三维生物膜电极反应器来培养FBCs.
- 将FBC集成到Sesuvium potulacastum构建的湿地系统中.
- 分析了细菌群体的组成,基因表达 (DEGs) 和大量的脱基因 (napA,narG,nirK,nirS,qnorB,NosZ).
- 评估了溶解的总 (DTN),酸盐 (NO3--N),酸盐 (NO2--N) 和氨 (NH4+--N) 的去除效率.
主要成果:
- 在FBC中检测到大量的脱细菌,这表明降低的代谢潜力.
- 在S. potulacastum中,FBC治疗导致差异表达基因 (DEGs) 的过度表达,丰富了细胞化合物.
- 在FBC治疗期间观察到关键脱基因 (napA,narG,nirK,nirS,qnorB,NosZ) 的拷贝数量增加.
- 根细菌群落 (RBCs) 中的代谢是由FBCs激活的.
- 在去除效率方面有显著的改进:DTN (84.37%),NO3--N (87.42%),NO2--N (67.51%) 和NH4+--N (92.57%).
- 最终的度达到中国的排放标准.
结论:
- 在Sesuvium potulacastum建造的湿地中,FBC显著提高了去除效率.
- 该机制涉及激活根细菌群体中的代谢,并增加脱基因丰富度.
- 这种方法显示了先进的废水处理技术的巨大潜力.
更多相关视频
15:19Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
9.7K
08:09Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity
Published on: August 19, 2018
9.2K
相关概念视频
00:46Bioremediation
19.1K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
19.1K
01:30Environmental Applications of Microorganisms
67
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
67
02:02Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
01:15Metabolism of Chemolithotrophs
52
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
52