合成和天然织微纤维和洗衣表面活性剂的联合有氧生物降解
Francisco Ríos1, Cristina Tapia-Navarro1, Juan F Martínez-Gallegos1
1Department of Chemical Engineering, Faculty of Sciences, University of Granada, Avda. Fuente Nueva s/n., 18071 Granada, Spain.
Journal of hazardous materials
|November 25, 2024
概括
棉花微纤维 (MFs) 是部分生物降解,而聚MFs不是. 与SLS和PGE-OE6等洗衣表面活性剂的相互作用显著改变水生环境中的MF和表面活性剂生物降解率.
科学领域:
- 环境科学 环境科学
- 聚合物科学 聚合物科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 微纤维 (MFs) 是水生系统中主要的微塑料污染物.
- 织品洗释放出含有表面活性剂的MF和洗衣剂.
研究的目的:
- 研究棉花和聚MF的生物降解性.
- 评估表面活性剂 (SLS,PGE-OE6) 对MF生物降解的影响.
- 分析生物降解动力学上的MF-表面活性剂相互作用.
主要方法:
- 使用经合组织301F测试进行生物降解评估.
- 对生物降解数据应用了伪第一阶和物流动力学模型.
- 研究了MF和表面活性剂的单独和组合作用.
主要成果:
- 棉花MF显示了74.9%的矿化;聚MF是不可生物降解的.
- 聚MF抑制了SLS生物降解;棉花MF增强了它.
- 棉花MFs与PGE-OE6相结合,减缓了两者的生物降解.
- 表面活性剂没有影响聚MF的生物降解性.
结论:
- 在水生环境中,MF与表面活性剂的相互作用极大地影响了生物降解.
- 了解这些相互作用对于环境监测和减缓至关重要.
- 需要对现实世界环境矩阵进行进一步的研究.
更多相关视频
07:47Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils
Published on: April 7, 2023
7.8K
16:33Methods for Facilitating Microbial Growth on Pulp Mill Waste Streams and Characterization of the Biodegradation Potential of Cultured Microbes
Published on: December 12, 2013
9.4K
相关概念视频
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K
Environmental Applications of Microorganisms
2
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...
2
Bioremediation
18.2K
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.
18.2K
Lipid Catabolism
1
Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
1
