PVA-TiO2纳米复合材料水凝作为气流液体废水处理的固定载体
Riham Surkatti1,2, Mark C M van Loosdrecht2, Ibnelwaleed A Hussein1
1Gas Processing Center, Qatar University, Doha 2713, Qatar.
Nanomaterials (Basel, Switzerland)
|February 9, 2024
概括
这项研究开发了用纳米粒子增强的聚乙烯醇 (PVA) 水凝,用于废水处理. PVA-TiO2水凝显示出增强的稳定性和机械强度,证明对生物质固定有效.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 生物技术是生物技术.
背景情况:
- 生物质固定对于有效的废水处理至关重要.
- 聚乙醇 (PVA) 水凝作为载体具有潜力,但需要增强机械稳定性.
- 纳米粒子增强可以改善生物反应器应用的水凝特性.
研究的目的:
- 开发和描述基于PVA的纳米复合材料水凝用于生物质固定.
- 研究氧化铁 (Fe2O3) 和氧化 (TiO2) 纳米颗粒对水凝特性的影响.
- 为了评估在废水处理中最稳定的PVA-纳米复合物水凝的性能.
主要方法:
- 使用冷解交联方法合成PVA水凝.
- 结合Fe2O3和TiO2纳米粒子,制造了PVA纳米复合材料.
- 水凝的表征包括形态分析 (SEM),化学结合 (FTIR) 和机械测试 (Young的模量).
- 性能测试涉及生物反应器用于废水处理的应用.
主要成果:
- 纳米颗粒的结合导致了规律的孔分布和增强的水凝矩阵相互作用.
- 机械强度和Young的模量显著提高,特别是TiO2.
- 在PVA-TiO2水凝中,Young的模量得到了900%以上的改善.
- 增强TiO2增强了水凝的稳定性,而不妨碍有机污染物的生物降解.
结论:
- PVA-TiO2纳米复合材料水凝表现出优越的机械性能和稳定性.
- 这些水凝是废水处理中的生物质固定的有效载体.
- 开发的PVA-TiO2水凝显示了环境应用的巨大潜力.
更多相关视频
08:59Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
Published on: November 30, 2022
4.5K
06:34Validation of Therapeutic Agent Conjugation to Polyvinyl Alcohol-Coated Medical Devices
Published on: November 29, 2024
220
相关概念视频
Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
Biological Treatment of Effluent and Waste Water
Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...
