碳纳米管对实际废水中某些营养物质和重金属的修复动力学研究

IF 1 Q4 ENGINEERING, ENVIRONMENTAL

Journal of Environmental Engineering and Science Pub Date : 2022-01-05 DOI:10.1680/jenes.21.00003

N. Shehata, M. M. Faisle, A. Farghali, MM EL-Rabiei, N. H. Mahmoud

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引用次数: 0

摘要

不同污染物颗粒内扩散到碳纳米管中的阻力被认为是废水处理中的主要挑战。因此，在本研究中，我们讨论了影响不同污染物从城市废水扩散到碳纳米管（CNTs）基质中的动力学参数。研究了不同的模型（伪一阶、伪二阶、颗粒内扩散、Avrami和混合一阶和二阶模型），以描述在碳纳米管存在的情况下，除了某些营养物质和重金属离子的动力学特征外，还降低了城市污水化学和生化需氧量的吸附特性。最后，提出了这些主要污染物的吸附机理。

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Kinetic Studies for the Remediation of Some Nutrients and Heavy Metals from Real Wastewater onto Carbon Nanotubes

The resistance of the intraparticle diffusion of different pollutants into CNTs is considered the main challenge in the wastewater treatment. Hence in this investigation, we discuss the kinetic parameters affecting the diffusion of different pollutants from municipal wastewater into the carbon nanotubes (CNTs) matrix. Different models (Pseudo first order, Pseudo second order, intraparticle diffusion, Avrami and mixed first and second order models) were studied to describe the adsorption characteristics of the reduction in chemical and biochemical oxygen demand of municipal wastewater in addition to the kinetic profile of some nutrients and heavy metals ions in the existence of CNTs. Finally, the mechanism of sorption of these main pollutants was proposed.

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来源期刊

Journal of Environmental Engineering and Science 环境科学-工程：环境

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

12 months

期刊介绍： Journal of Environmental Engineering and Science is an international, peer-reviewed publication providing a forum for the dissemination of environmental research, encouraging interdisciplinary research collaboration to address environmental problems. It addresses all aspects of environmental engineering and applied environmental science, with the exception of noise, radiation and light.