Continuous antibiotic attenuation in algal membrane photobioreactor: Performance and kinetics

Claude Kiki; Xin Ye; Xi Li; Bob Adyari; Anyi Hu; Dan Qin; Chang-Ping Yu; Qian Sun

doi:10.1016/j.jhazmat.2022.128910

Continuous antibiotic attenuation in algal membrane photobioreactor: Performance and kinetics

J Hazard Mater. 2022 Jul 15:434:128910. doi: 10.1016/j.jhazmat.2022.128910. Epub 2022 Apr 14.

Authors

Claude Kiki¹, Xin Ye², Xi Li², Bob Adyari³, Anyi Hu², Dan Qin², Chang-Ping Yu⁴, Qian Sun⁵

Affiliations

¹ CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100043, China; National Institute of Water, University of Abomey-Calavi, 01 BP: 526 Cotonou, Benin.
² CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
³ CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100043, China.
⁴ CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Graduate Institute of Environmental Engineering, Taiwan University, Taipei 106.
⁵ CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China. Electronic address: qsun@iue.ac.cn.

PMID: 35452987
DOI: 10.1016/j.jhazmat.2022.128910

Abstract

The attenuation of 10 mixed antibiotics along with nutrients in a continuous flow mode by four freshwater microalgae (Haematococcus pluvialis, Selenastrum capricornutum, Scenedesmus quadricauda, and Chlorella vulgaris) was examined in membrane photobioreactors (MPBRs). At lab-scale, consistent removal of both antibiotic and nutrient was shown by H. pluvialis and S. quadricauda, respectively. The system exhibited better performance with enhanced removal at HRT 24 h compared to 12 h and 48 h. The highest removal efficiency of antibiotics was observed in H. pluvialis MPBR, with the mean antibiotic removal values of 53.57%- 96.33%. Biodegradation was the major removal pathway of the antibiotics in the algal-MPBR (AMPBR), while removal by bioadsorption, bioaccumulation, membrane rejection, and abiotic was minor. Then, the bacterial feature was studied and showed significant influence from system hydrodynamics. The kinetics of continuous flow antibiotic removal followed Stover-Kincannon and Grau second-order models, which revealed great potential of AMPBR to withstand antibiotic load. The latter coupled with the computational fluid dynamic simulation was successfully applied for the residual antibiotic prediction and potential system optimization. Overall, these results provide an important reference for continuous flow antibiotic removal using AMPBR.

Keywords: Antibiotics; Continuous flow; Degradation mechanisms; Kinetics; Microalgae.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Anti-Bacterial Agents / metabolism
Biomass
Chlorella vulgaris* / metabolism
Chlorophyceae*
Kinetics
Microalgae* / metabolism
Photobioreactors
Wastewater

Substances

Anti-Bacterial Agents
Waste Water