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生物质作为污染水中的重金属的有效生物吸收剂

Chetsada Phaenark¹, Sarunya Nasuansujit¹, Natdanai Somprasong²

¹Conservation Biology Program, School of Interdisciplinary Studies, Mahidol University, (Kanchanaburi Campus), 199 Moo 9 Lumsum, Sai Yok District, Kanchanaburi 71150, Thailand.

|July 18, 2024

概括

来自两种物种的生物质有效地从水中去除和. 这种可持续的生物吸收剂显示出高效率和快速吸附动力学,使其成为废水处理的理想选择.

科学领域:

环境科学环境科学
环境化学环境化学
生物技术是生物技术.

背景情况:

水的重金属污染对环境和健康构成重大风险.
传统的水处理方法可能是昂贵的,并产生二次污染物.
基于生物质的吸附剂为重金属修复提供了一个可持续的替代方案.

研究的目的:

评估巴布拉血族和Hyophila involuta生物质在从水溶液中去除 (Cd (II)) 和 (Pb (II)) 离子方面的效率.
研究各种参数对吸附过程的影响.
用同热和动力模型阐明吸附机制和动力学.

主要方法:

使用生物质进行了批量吸附实验.
在不同的条件下 (pH,接触时间) 评估了去除效率.
用兰格穆尔,弗洛因利希,埃洛维奇,西普斯,雷德利希-彼得森模型和伪二阶动力学分析了吸附机制. 进行了FTIR和EDS分析.

主要成果:

这两种物种在30分钟内显示出高的Cd(II) (高达89%) 和Pb(II) (高达94%) 清除率.
Pb(II) 的吸附依赖于pH值 (在pH值5.0-5.5处是最佳的),而Cd(II) 的去除则与pH值无关.
吸附遵循伪二次动力学,表明化学吸附,最好用多个异温模型来描述,表明异质表面.
FTIR和EDS证实了参与金属结合的功能组和离子交换机制的存在.

结论:

来自B.consanguinea*和H.involuta*的生物质是Cd (II) 和Pb (II) 除去的高效和可持续的生物吸收剂.
*B.同血种*由于其较高的负泽塔潜力而表现出更高的吸附能力.
该研究强调了使用生物质作为废水处理中重金属整治的成本效益和环保解决方案的潜力.

关键词:

生物吸收生物吸收环境友好型的环境友好型盆地植物盆地植物整治整治整治整治可持续的可持续的

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