污染水中的和的生物吸收使用L.花废物,通过langmuir和freundlich模型证明了这一点
Priti Chauhan1, Ritu Panwar1, Sudhakar Srivastava2
1Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, Rajasthan, India.
International journal of phytoremediation
|September 17, 2025
概括
花废物有效地从废水中去除有毒的和. 这项研究展示了一种可持续的方法,可以同时管理废物和水污染.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 由于有毒污染物,如 (Pb) 和 (Cd) 等污染物,废水排放对环境构成重大风险.
- 增加的城市有机废物,包括花废物,对废物管理和环境整治提出了双重挑战.
研究的目的:
- 调查 (Tagetes erecta L.) 花废物的潜力,作为从污染水中去除Pb (II) 和Cd (II) 的生物吸收剂.
- 探索一种同时处理花废物和有毒金属污染物的方法.
主要方法:
- 使用原子吸收光谱法 (AAS),扫描电子显微镜-能量分散X射线光谱法 (SEM-EDX) 和里埃变换红外分析 (FTIR) 进行Tagetes erecta花废物的表征.
- 在室温下进行的生物吸收实验,用兰格穆尔和弗朗德利希模型分析吸附等温.
- 为了确定吸附率,按照伪二次动力学进行的动力学研究.
主要成果:
- 确定最大吸附能力为Cd (II) 的52.6mgg-1和Pb (II) 的21.74mgg-1.
- 在pH值6和150分钟时发现了金属去除的最佳条件,达到80%的Pb (II) 和91.8%的Cd (II) 消除.
- 吸附平衡数据与伪二次动力模型相吻合.
结论:
- Tagetes erecta花废物是一种有希望的,低成本的生物吸收剂,可以有效地从废水中去除和.
- 这项研究强调了一种可持续的战略,即同时进行废物管理和水污染控制.
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