Effects of Graphene on the Transport of Quinolones in Porous Media

Zhou Cheng; Cehui Mo; Ming Wu; Huihui Cao; Yanru Hao; Guoping Lu; Qusheng Li; Jianfeng Wu; Jichun Wu; Bill X. Hu

doi:10.3390/w15030593

Water (Feb 2023)

Effects of Graphene on the Transport of Quinolones in Porous Media

Zhou Cheng,
Cehui Mo,
Ming Wu,
Huihui Cao,
Yanru Hao,
Guoping Lu,
Qusheng Li,
Jianfeng Wu,
Jichun Wu,
Bill X. Hu

Affiliations

Zhou Cheng: Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Cehui Mo: Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Ming Wu: Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Huihui Cao: Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Yanru Hao: Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Guoping Lu: Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Qusheng Li: Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China
Jianfeng Wu: Key Laboratory of Surficial Geochemistry, Ministry of Education, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
Jichun Wu: Key Laboratory of Surficial Geochemistry, Ministry of Education, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
Bill X. Hu: School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China

DOI: https://doi.org/10.3390/w15030593
Journal volume & issue: Vol. 15, no. 3
p. 593

Abstract

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The effect of graphene (GN) on the transport of CIP and NOR in porous media is investigated by a combination of batch experiments, column experiments and mathematical models. The results obtained by batch experiments show that GN has great adsorption capacity to two antibiotic contaminants, and the maximum adsorption amounts based on the Langmuir model calculation are 270.67 mg/g and 178.36 mg/g, respectively. The column experiments suggest the mobility of CIP and NOR decreases with the mass fraction of GN packed in porous media, and the mass recovery rates of CIP and NOR increase with flow velocity. As the concentration of Na+ increases, the mobility of CIP and NOR is enhanced. However, Ca2+ has a significant enhancement effect on the mobility of CIP and NOR. Moreover, the transport processes of CIP and NOR in the column are predicted by a BDST mathematical model, and the calculated results are in good agreement with the experimental results. The relationships between kinetic parameters related to QNs’ mobility and GN content, flow velocity and ionic strength are obtained by a regression analysis, which can be used to predict the mobility of CIP and NOR in porous media.

Published in Water

ISSN: 2073-4441 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Hydraulic engineering; Technology: Environmental technology. Sanitary engineering: Water supply for domestic and industrial purposes
Website: http://www.mdpi.com/journal/water/

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