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Separation Science and Technology Volume 56, 2021 - Issue 12
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Adsorption

Role of adsorption during nanofiltration of sulfamethoxazole and azithromycin solution

Danyan LiSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
,
Haidong ZhouSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, ChinaCorrespondence[email protected]
,
Liping HuangSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
,
Jingyuan ZhangSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
,
Jinyu CuiSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
&
Xin LiSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
Pages 1996-2010 | Received 23 May 2020, Accepted 01 Aug 2020, Published online: 18 Aug 2020
 
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ABSTRACT

Nanofiltration, one of the effective water-purification technologies, can have a certain adsorption effect on two typical antibiotics sulfamethoxazole and azithromycin. In this paper, the effects of operating pressure, temperature, pH value and initial feed concentration on the adsorption during nanofiltration of the two antibiotics were investigated. The results showed that the adsorption rate of two antibiotics by nanofiltration was 40%−99%. The temperature had a significant effect on the adsorption. The change of pH would affect the nature of antibiotics, while pressure only affected the flux. Changing the initial feed concentration might lead to a critical point in the adsorption rate.

Acknowledgements

This work was financially supported by the Natural Science Foundation of Shanghai, China (18ZR1426100), and the USST Program of Science and Technology Development (2018KJFZ117).

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