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| Effects of graphene on the transport of quinolone antibiotics in saturated porous media |
| Received:June 14, 2021 |
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| KeyWord:graphene;antibiotics;porous media;transport;model |
| Author Name | Affiliation | E-mail | | CAO Huihui | Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Guangdong Polytechnic of Water Resources and Electric Engineering, Guangzhou 510000, China | | | WU Ming | Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China | wumingnj@foxmail.com | | CHENG Zhou | Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, China | | | HU Bill X | Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China | | | MO Cehui | Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China | |
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| Abstract: |
| In this study, ciprofloxacin(CIP) and norfloxacin(NOR) were selected as typical antibiotics. Batch adsorption and column experiments were conducted to investigate the effect of graphene on the transport of antibiotics in porous media. The results from batch experiments indicated the strong absorption capacity of GN on the two antibiotics with maximum Langmuir adsorption capacities of 270.68 mg·g-1 and 178.36 mg·g-1, respectively. Sand column experiments showed that the mobility of CIP and NOR decreased with the increase of GN in porous media, and the removal rate decreased with the increase of flow velocity and ionic strength(Na+ and Ca2+). The migration processes of CIP and NOR in the sand column was simulated using the BDST model. The results of BDST are consistent with experimental observations, suggesting that the BDST model is suitable for predicting the effect of GN on the mobility of CIP and NOR in porous media. |
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