Adsorption Models and Kinetic Analysis of Molybdenum on the Sediment of the Yellow River in China
Publication: Journal of Environmental Engineering
Volume 150, Issue 12
Abstract
The Yellow River basin is rich in sediment that provides a transport carrier for the transport and diffusion of pollutants. Molybdate ions contained in the tributaries of the Yellow River are dispersed with the water and sediment movement to the whole basin, which will result in water pollution and soil pollution within a certain range. The static adsorption method is adopted to study the adsorption of molybdate ions onto the Yellow River sediment, the adsorption model of molybdate on sediment can be obtained from the experimental data and kinetic analysis can be carried out to lay a good foundation for exploring molybdenum adsorption and removal in actual water flow. The effects of contact time, pollutant concentration, sediment concentration, and agitation frequency on the molybdenum adsorption onto sediment were investigated. In the process of sediment-molybdenum adsorption, the kinetics and isothermal adsorption conformed to the Lennard-Jones equation model and the Freundlich model, respectively. Simultaneously increasing the molybdenum concentration, sediment content, and agitation frequency enhances the adsorption of molybdate onto sediment particles. Higher concentrations within a specific range have a more pronounced effect.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request. No data was provided by the corresponding author.
Acknowledgments
This research is supported by the National Key R & D Program of China (Grant No. 2022YFC3801000), the Open Research Fund of MWR Key Laboratory of Lower Yellow River Channel and Estuary Regulation (Grant No. LYRCER202202), the Program for Innovative Research Team (in Science and Technology) in University of Henan Province (Grant No. 23IRTSTHN004), the Key Scientific Research Projects of Colleges and Universities in Henan Province (Grant No. 22A570009), the China Postdoctoral Science Foundation funded project (Grant Nos. 2022M712904 and 2022M712904), the Scientific and Technological Research Program of Henan Province (Grant No. 232102321099), the Open Research Fund of Key Laboratory of Water-saving Irrigation Engineering of the Ministry of Agriculture and Rural Affairs (MARA) (Grant No. FIRI2021020201), the Open Funding of State Key Laboratory of Water Resources and Hydropower Engineering Science (Wuhan University) (Grant No. 2022SWG03), the Yellow River Laboratory (Zhengzhou University) first-class project special fund project (Grant Nos. YRL221R11 and YRL22YL03), the Special Scientific Research Project of Yellow River Water Resources Protection Institute (Grant No. KYY-KYZX-2022-01).
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Published In
Journal of Environmental Engineering
Volume 150 • Issue 12 • December 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Nov 29, 2023
Accepted: May 20, 2024
Published online: Oct 7, 2024
Published in print: Dec 1, 2024
Discussion open until: Mar 7, 2025
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