铁氧化物纳米颗粒的绿色合成用于处理咖啡桃粉碎废水:环境影响
Thamaraiselvi Chandran1, Athira Sudarsanan Thulasi1, Manikandan Elayaperumal2
1Department of Biotechnology, Mother Teresa Women's University, Kodaikanal, Tamil Nadu, India.
Microscopy research and technique
|July 22, 2025
概括
绿色合成的氧化铁纳米粒子有效地处理咖啡废水. 这种可持续的方法减少了化学氧气需求,总溶解固体和颜色,为咖啡工业提供了一个环保的解决方案.
科学领域:
- 环境化学环境化学
- 纳米技术纳米技术
- 绿色化学 绿色化学
背景情况:
- 咖啡桃粉碎废水 (CPWW) 由于高有机负载,酸度和固体而带来重大环境危害.
- 污染物包括高化学氧需求 (COD),生物化学氧需求 (BOD5),总溶解固体 (TDS) 和总悬浮固体 (TSS).
- 对于农业工业部门来说,现有的处理方法可能不是可持续的或具有成本效益的.
研究的目的:
- 使用绿色方法从Ricinus communis L.种子提取物合成氧化铁纳米颗粒.
- 评估这些纳米颗粒在治疗CPWW中的有效性.
- 评估这种新型处理方法的环境效益和可扩展性.
主要方法:
- 绿色合成氧化铁纳米颗粒使用植物提取物.
- 使用X射线衍射 (XRD),扫描电子显微镜 (SEM) 和富里埃转换红外光谱 (FTIR) 进行纳米粒子的表征.
- 纳米颗粒用于CPWW处理和污染物去除效率的分析.
主要成果:
- XRD,SEM和FTIR证实了具有基和氨基功能组的稳定氧化铁纳米颗粒的形成.
- 最佳剂量为0.08g/100mL,可实现74%的COD去除,69%的TDS减少和92%的脱色.
- 对经过处理的污泥的FTIR分析表明了参与污染物结合的功能组.
结论:
- 绿色合成的氧化铁纳米颗粒为CPWW处理提供了可持续和高效的方法.
- 这种方法将与CPWW相关的环境风险降到最低,并促进更清洁的生产.
- 该研究通过为农业工业废物提供可扩展,环保的解决方案来支持循环经济原则.
相关概念视频
Microbes and Other Elemental Cycles
Microbial activity plays a pivotal role in the biogeochemical cycling of iron and manganese, especially at the redox gradients characteristic of stratified aquatic environments. These cycles are driven by microbial transformations between oxidized and reduced forms of the metals, allowing organisms to exploit them for metabolic energy and structural purposes.Iron Cycling Across Redox GradientsIn neutral, oxygen-rich surface waters, iron is predominantly found in its oxidized, insoluble ferric...
Microbial Leaching
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
Acid Mine Drainage
Mining activities that disturb sulfide-rich rocks, particularly those containing pyrite (FeS₂), initiate a cascade of geochemical and microbiological processes with serious environmental implications. When exposed to air and water, pyrite undergoes oxidation, releasing sulfate, ultimately forming sulfuric acid and mobilizing heavy metals into surrounding water systems. This phenomenon, known as acid mine drainage (AMD), results in low pH waters laden with toxic elements that threaten aquatic...


