2019
DOI: 10.1016/j.bioelechem.2019.04.008
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Electrodes boost microbial metabolism to mineralize antibiotics in manure

Abstract: Livestock manures are potential sources of antibiotics in the environment. Sulfamethazine (SMZ), frequently used in veterinary medicine, can enter the environment by using manure as soil fertilizer due to its incomplete absorption in the animal gut and its unmetabolized excretion. The objective of this study was to evaluate the mineralization of 14 C-labelled SMZ in manure under a new redox scenario provided by microbial electrochemical reactors, termed microbial electroremediating cells (MERC). These devices … Show more

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Cited by 13 publications
(3 citation statements)
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References 45 publications
(54 reference statements)
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“…Microorganisms interacting with electrodes are presently boosting a myriad of biotechnological processes ( Clauwaert et al, 2008 ; Rosenbaum and Franks, 2014 ; Rodrigo Quejigo et al, 2019 ; Prévoteau et al, 2020 ), but little is known yet about halophiles with this capacity ( Carmona-Martínez et al, 2013 ; Shrestha et al, 2018 ). Although not directly comparable in terms of growth yield, data from cultures grown here by using a polarized electrode as the electron acceptor show that they developed in the same time frame of those growing on fumarate, exhibiting a doubling time of approximately 6 days and reaching the maximal current beyond day 12 ( Figure 1 and Table 1 ).…”
Section: Resultsmentioning
confidence: 99%
“…Microorganisms interacting with electrodes are presently boosting a myriad of biotechnological processes ( Clauwaert et al, 2008 ; Rosenbaum and Franks, 2014 ; Rodrigo Quejigo et al, 2019 ; Prévoteau et al, 2020 ), but little is known yet about halophiles with this capacity ( Carmona-Martínez et al, 2013 ; Shrestha et al, 2018 ). Although not directly comparable in terms of growth yield, data from cultures grown here by using a polarized electrode as the electron acceptor show that they developed in the same time frame of those growing on fumarate, exhibiting a doubling time of approximately 6 days and reaching the maximal current beyond day 12 ( Figure 1 and Table 1 ).…”
Section: Resultsmentioning
confidence: 99%
“…At higher anode polarization, + 600 mV (vs. Ag/AgCl), the TOC removal decreased to 63%, while CBZ and SMX showed a slight decrease compared to the operation at lower anode potentials. The reduced electrobioremediation efficiency at potentials as high as + 600 mV has been previously reported and is most likely due to an alteration in the permeability of the bacterial membrane (Rodrigo Quejigo et al, 2019), resulting in lower microbial viability.…”
Section: Microbial Electrochemical Fluidized Bed Reactor Is An Efficient Technology For Removing Carbamazepine and Sulfamethoxazole From mentioning
confidence: 65%
“…Furthermore, MET have been historically evaluated regarding wastewater treatment capacity through three different approaches: microbial fuel cells (MFC) (Logan, 2008;Domínguez-Garay et al, 2016;Cecconet et al, 2018;Gajda et al, 2018;Gao et al, 2020;Lin et al, 2020), microbial electrolysis cells (MEC) (Srikanth et al, 2008;Zhang and Angelidaki, 2014;Scott and Yu, 2015;Bajracharya et al, 2016;Leon-Fernandez et al, 2019), and microbial electrochemical snorkel (MES) (Yang et al, 2013(Yang et al, , 2015Viggi et al, 2017;Hoareau et al, 2019;Pun et al, 2019;Ramírez-Vargas et al, 2019). Among them, dual-chamber MEC has been the most evaluated system for removing pharmaceutical pollutants like CBZ and SMX due to successful performance at lab scale (Harnisch et al, 2013;Rodrigo Quejigo et al, 2019;Tahir et al, 2019). Nevertheless, some bottlenecks, such as the ionic exchange membrane (IEM) cost or a large limitation in mass transfer, have delayed the further scaling of such a system.…”
Section: Introductionmentioning
confidence: 99%