相关实验视频
Updated: Jan 30, 2026

08:24
Mesocosm-Scale Constructed Wetland Design for Wastewater Treatment
Published on: May 2, 2025
1.0K
改进了废水处理厂污水排放所建造的湿地的脱性能,使用零价值铁基混合固体碳来源
Ye Zhu1, Qian Chen2, Tanveer M Adyel3
1Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
Bioresource technology
|January 28, 2026
概括
一种新的铁碳材料增强了废水处理中的去除. 这种材料增强了微生物活动,在建造的湿地中达到97%以上的酸盐去除,性能稳定.
科学领域:
- 环境工程 环境工程
- 环境微生物学 环境微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 市政废水处理废水往往含有高酸盐水平,造成环境风险.
- 有效的生物脱是从废水中去除的关键.
- 现有的固体碳来源可能在生物可用性和释放率方面存在限制.
研究的目的:
- 开发和评估一种新的零价值铁基混合固体碳源 (ZVI-MSCSs),用于增强去除.
- 研究提高脱性能背后的机制.
- 评估ZVI-MSCS在建筑湿地 (CW) 的应用.
主要方法:
- 开发ZVI-MSCS嵌入纤维素,聚3-基酸-co-3-基酸) 和ZVI的开发.
- 漏实验以确定碳释放特征.
- 在CW中应用ZVI-MSCS以评估酸盐去除效率.
- 机制研究包括酶活性测定和电子载体分析.
- 高通量测序用于微生物社区分析.
主要成果:
- 在ZVI-MSCS中,碳释放率中等,生物可用性高.
- 使用ZVI-MSCS的CW实现了高达97%的酸盐去除率,在不同的液压保留时间下显示稳定性.
- 零价值铁 (ZVI) 促进了纤维素的降解,供应了NADH并调节了电子载体,增强了电子转移和脱酶活动.
- 微生物社区分析显示,从蛋白质细菌转变为克洛斯特里迪奥伊德,这表明过渡到铁碳混合化脱.
结论:
- ZVI-MSCSs有效地提高了CW中的生物脱.
- ZVI和固体碳来源的协同作用改善了微生物的新陈代谢和电子转移以实现脱.
- 这项技术为利用固体碳来源有效地从废水中去除提供了一个有希望的解决方案.
更多相关视频
相关概念视频
Sources of Self-Esteem II: Performance Feedback
189
Self-esteem is intricately tied to our perception of competence and our ability to exert control over our lives. One of the primary sources of this perception is performance feedback — the ongoing evaluation of our actions in terms of success and failure. According to Franks and Marolla (1976), people derive self-worth from experiencing themselves as causal agents, capable of achieving goals and overcoming obstacles. This process nurtures a critical component of self-esteem:...
189
Key Elements for Plant Nutrition
24.2K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.2K
The Carbon Cycle
43.7K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
43.7K
Network Covalent Solids
16.2K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.2K
Plant Tissue Culture
40.6K
Plant tissue culture is widely used in both primary and applied science. Applications range from plant development studies to functional gene studies, crop improvement, commercial micropropagation, virus elimination, and conservation of rare species.
40.6K
Metallic Solids
20.6K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.6K

