评估基于自然的解决方案的有效性,以减轻蓝藻细菌的繁殖,并从污染水中去除毒素
Roseline Prisca Aba1, Richard Mugani1, Sofyan Sbahi2
1National Center for Studies and Research on Water and Energy (CNEREE), Cadi Ayyad University, Av. Abdelkarim El Khattabi, P.O. Box: 511, 40000 Marrakech, Morocco; Laboratory of Water Sciences, Microbial Biotechnologies and Natural Resources Sustainability, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco.
Aquatic toxicology (Amsterdam, Netherlands)
|October 9, 2025
概括
多层土壤 (MSL) 有效地从水中去除有害的蓝藻细菌和毒素. 这种可持续的生态技术在实验室试验中实现了99%以上的蓝菌和微囊的去除.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 生态毒理学 生态毒理学
背景情况:
- 菌繁殖 (CyanoHABs) 威胁到公众健康和水质.
- 毒素,如微囊 (MC-LR),是菌产生的强毒素.
- 有效和可持续的清除CyanoHABs的方法至关重要.
研究的目的:
- 评估多层土壤 (MSL) 在去除蓝藻和毒素方面的有效性.
- 评估MSL在不同土壤类型 (沙土壤与土壤丰富土壤) 的性能.
- 确定MSL作为淡水整治可持续生态技术的潜力.
主要方法:
- 实验室规模的研究使用两个MSL中等宇宙,土壤成分各不相同.
- 污染的井水的处理 Microcystis aeruginosa 和 MC-LR.
- 在液压负载率为200 L m-2的一天-1的连续养.
主要成果:
- 在MSL系统中,有机物和营养物质的去除率高达90%.
- 两种MSL介质宇宙都实现了99%以上的蓝藻细菌细胞和微囊的去除.
- MSL基板有效地吸附和生物降解MC-LR.
结论:
- MSL生态技术在去除蓝藻细菌和微囊方面表现出高效率.
- 无论土壤中的粘土含量如何,MSL系统都是有效的.
- 在淡水生态系统中,MSL提供了一个有前途的可持续解决方案,用于管理淡水生态系统中的CyanoHABs.
相关概念视频
Bioremediation
22.0K
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.
22.0K
Biological Methods for Microbial Control
783
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
783
Environmental Applications of Microorganisms
956
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...
956
Coagulation
1.2K
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
1.2K
Bacterial Phylum Cyanobacteria
503
Cyanobacteria are a diverse group of oxygenic, phototrophic bacteria that played a pivotal role in converting Earth’s atmosphere from anoxic to oxygen-rich billions of years ago. They exhibit remarkable morphological diversity, ranging from unicellular forms to filamentous types, with cell sizes varying between 0.5 μm and 100 μm. Cyanobacteria are classified into five groups: Chroococcales (unicellular, dividing by binary fission), Pleurocapsales (unicellular, dividing by...
503
Antimicrobial Effectiveness
904
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
904


