相关实验视频

Updated: Jul 23, 2025

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

生物炭/Fe修饰的生物载体同时驱动NDFO和Feammox,以从有机水中去除

Lang Cheng¹, Hong Liang¹, Wenbo Yang¹

¹Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.

|July 13, 2023

概括

这项研究开发了一种新型的铁改性生物载体,用于增强自的自移除自的水. 生物载体有效地促进了铁循环,通过Feammox和NDFO工艺显著地去除了和酸盐.

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
生物地质化学生物地质化学

背景情况:

欧化对水生生态系统构成重大威胁,原因是过度的营养物质负载,特别是.
自营去除为传统方法提供了可持续的替代方案,但需要高效的微生物过程.
铁循环与无氧氧化 (Feammox) 和依赖酸盐的Fe (II) 氧化 (NDFO) 结合,为同时去除提供了一种新的途径.

研究的目的:

开发和评估一种铁基修饰的生物载体,以提高从有机水中去除的效果.
调查生物炭作为电子运输工具的有效性,以提高铁的生物可用性.
阐明通过Feammox和NDFO去除的微生物机制.

主要方法:

用铁改性生物载体的制备,其铁与生物炭的比率各不相同.
在70天内使用模拟的环氧化水进行批量实验,以评估去除效率.
用X射线光电子光谱 (XPS) 和X射线衍射 (XRD) 进行表面特征.
现场活动测试和现场实验以确认微生物过程并确定关键细菌群落.

主要成果:

具有1:1的铁与生物炭比率 (BC1) 的生物载体实现了最高的66.74%的去除效率.
XPS和XRD分析证实了Fe (III) 和Fe (II) 化合物的存在,表明一个功能性的Fe (III) /Fe (II) 循环.
功能活性与铁含量呈正相关性,现场测试证实了Feammox和NDFO的发生.
丰富了特定的细菌,包括Gallionellaceae (NDFO) 和Alicycliphilus (Feammox),突出了微生物的合作.

结论:

用铁修改的生物载体在催化自性水中的自性去除方面表现出卓越的性能.
结合的NDFO和Feammox工艺,由铁改性生物载体促进,为可持续的管理提供了一个有希望的方法.
这项研究强调了工程生物载体在水生环境中有效去除营养物的潜力.

关键词:

生物炭是一种生物炭.欧特罗菲性水是一种水.在Feammox中使用Feammox.改性生物载体改性生物载体这是NDFO.

更多相关视频

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

Published on: December 5, 2019

相关概念视频

Bioremediation

Bioremediation

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.

Metabolism of Chemolithotrophs

Metabolism of Chemolithotrophs

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.

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

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...