Impact of tobramycin on the performance of microbial fuel cell

Wu, Wenguo; Lesnik, Keaton Larson; Xu, Shoutao; Wang, Luguang; Liu, Honghong

doi:10.1186/s12934-014-0091-6

Cited by 43 publications

(15 citation statements)

References 33 publications

(22 reference statements)

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“…Patil et al (2010) observed no response of electroactive biofilms to antibiotics (sulfamethaxozole and sulfadiazin) and disinfectants (chloramine B at low concentrations). Wu et al (2014) observed a toxic effect of antibiotics (tobramycin) but only at high concentrations (100 mg/L), far exceeding levels observed in wastewater treatment plants. However, inhibition of current generation was reported for pesticides such as aldicarb (King et al, 2014) or organophosphorus compounds (Kim et al, 2007), and for PCBs (Polychlorobiphenyls) (Kim et al, 2007).…”

Section: Introductionmentioning

confidence: 83%

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Godain

Spurr

Boghani

et al. 2020

Front. Environ. Sci.

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The upstream protection of the biomass present in biological treatment processes is a vital challenge as the consequences of failure could include exposure of water users to hazardous chemicals in addition to loss of treatment performance. Online detection of toxic compounds in wastewater could enable processes to be monitored in real-time and promote pro-active responses to pollution incidents. Recently, Microbial Fuel Cells (MFCs) which generate electricity from organic matter oxidation have shown potential as sensors for online detection of toxicity. In this study, the detection of a model toxicant (4-nitrophenol) was investigated using a multi-stage MFC-based toxicity sensor. MFCs were operated with synthetic wastewater to maintain realistic conditions while enabling organic carbon levels to be controlled. A positive correlation was observed between the 4-NP concentrations and the current drop area showing that the response was proportional to the toxicity level. In addition, the sensor anodic biofilm exhibited resilience to acute toxic events with recovery of 75% of the initial current following a toxic event comprising 500 mg/L 4-NP after 4 h. However, repetitive toxicity events could lead to the selection of resistant bacteria able to degrade the toxic compounds. In this study, a maximal 4-NP degradation rate of 36 mg/h was observed. This limitation could be overcome by re-calibration after a determined number of toxic events. An additional feature of the multi-stage configuration of the sensor is that a drop in output caused by the presence of a toxic compound could be distinguished from a drop in output caused by a decrease in BOD. The microbial community on the sensor anode was characterized by 16S rRNA gene sequencing and shown to comprise an anaerobic community of fermentative bacteria capable of producing volatile fatty acids and hydrogen that were consumed by electrogenic Geobacter spp (2.76 to 21.39% of the anode community) that generated the electrical signal in the sensor. The multi-stage MFC biosensor could provide an early warning system capable of alerting process operators to the presence and level of toxicity in influent wastewater.

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Section: Introductionmentioning

confidence: 83%

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Godain

Spurr

Boghani

et al. 2020

Front. Environ. Sci.

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“…One more example was that the voltage output of MFC had relatively high reported to be stable when the 500 mg/L to 1.0 mg/L. Finally, these scientific studies have shown considerable impact load capacity, providing scientific-reference for the treatment of antibiotic-containing pharmaceutical wastewater by bioelectrochemical systems [118].…”

Section: Removal Efficiency Of Antibioticsmentioning

confidence: 99%

Removal of antibiotics from wastewater and its problematic effects on microbial communities by bioelectrochemical Technology: Current knowledge and future perspectives

Hassan

Zhu

et al. 2020

Environmental Engineering Research

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In this review, antibiotics are considered an emerging pollutant that has drawn worldwide attention in recent years. Therefore, the effective removal of antibiotic contaminants has become a hot issue in the field of environmental research. Most antibiotics applied to humans eventually enter municipal Wastewater Treatment Plants (WWTPs), because there are no appropriate commercially available pretreatment techniques. However, increasing anthropogenic activities, the high demand for animal-protein in developing countries as a nutritional alternative, and the extensive usage of antibiotics are mainly responsible for the persistence of antibiotic pollutants. One of the serious concerns regarding the presence of antibiotics in water and their potential role in exacerbating the emergence of antibiotics-resistance bacteria (ARB) and antibiotics-resistance genes (ARGs). In recent years, bioelectrochemical technologies are found promising for suppressing antibiotic contaminants through microbial metabolism and electrochemical redox reactions. Therefore, this review provides up-to-date insight research on bioelectrochemical systems (BESs), which improves the removal of the antibiotic in an efficient way. The focus of this review has been on the environmental sources of antibiotics, their health effects and possible degradation pathways, bacterial-antibiotics resistance mechanisms, and treatment of antibiotic-contained water using BES technology.

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“…Microbial fuel cells (MFCs) are a type of bioreactor, which directly harvests electricity from chemical energy by exoelectrogens (i.e., microorganisms transferring electrons to an electrode). Recently, they have been widely used in power generation, wastewater treatment and biosensors [1][2][3][4][5][6][7]. In particular, the electron transfer occurs between: Redox-active outer membrane c-type cytochromes (OM c-Cyts) of the microbe, or redox-active mediators secreted by the cells/added outside, or microbially generated nanowires and the electrode surface [8].…”

Section: Introductionmentioning

confidence: 99%

Controlled Layer-By-Layer Deposition of Carbon Nanotubes on Electrodes for Microbial Fuel Cells

Niu

Yang

et al. 2019

Energies

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Carbon nanotubes (CNTs) and polyelectrolyte poly(allylamine hydrochloride) (PAH) composite modified indium tin oxide (ITO) electrodes, by a layer-by-layer (LBL) self-assembly technique, was evaluated as an anode for microbial fuel cells (MFCs). The bioelectrochemistry of Shewanella loihica PV-4 in an electrochemical cell and the electricity generation performance of MFCs with multilayer (CNTs/PAH)n-deposited ITO electrodes as an anode were investigated. Experimental results showed that the current density generated on the multilayer modified electrode increased initially and then decreased as the deposition of the number of layers (n = 12) increased. Chronoamperometric results showed that the highest peak current density of 34.85 ± 2.80 mA/m2 was generated on the multilayer (CNTs/PAH)9-deposited ITO electrode, of which the redox peak current of cyclic voltammetry was also significantly enhanced. Electrochemical impedance spectroscopy analyses showed a well-formed nanostructure porous film on the surface of the multilayer modified electrode. Compared with the plain ITO electrode, the multilayered (CNTs/PAH)9 anodic modification improved the power density of the dual-compartment MFC by 29%, due to the appropriate proportion of CNTs and PAH, as well as the porous nanostructure on the electrodes.

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Impact of tobramycin on the performance of microbial fuel cell

Cited by 43 publications

References 33 publications

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Removal of antibiotics from wastewater and its problematic effects on microbial communities by bioelectrochemical Technology: Current knowledge and future perspectives

Controlled Layer-By-Layer Deposition of Carbon Nanotubes on Electrodes for Microbial Fuel Cells

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