Degradation of antibiotic resistance contaminants in wastewater by atmospheric cold plasma : kinetics and mechanisms

This work employed the atmospheric cold plasma technology to efficiently control the antibiotic resistance contaminants in the wastewater effluent. We found that the plasma inactivated the antibiotic-resistant Escherichia coli through multiple damages on the cell membranes and intracellular componen...

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Veröffentlicht in:Environmental technology. - 1993. - 42(2021), 1 vom: 01. Jan., Seite 58-71
1. Verfasser: Liao, Xinyu (VerfasserIn)
Weitere Verfasser: Liu, Donghong, Chen, Shiguo, Ye, Xingqian, Ding, Tian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Antibiotic resistance contaminants atmospheric cold plasma kinetics mechanisms wastewater Anti-Bacterial Agents Plasma Gases Waste Water
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520 |a This work employed the atmospheric cold plasma technology to efficiently control the antibiotic resistance contaminants in the wastewater effluent. We found that the plasma inactivated the antibiotic-resistant Escherichia coli through multiple damages on the cell membranes and intracellular components (enzymes and DNA). Plasma treatment at an influence of 0.71 kJ/cm2 resulted in a more than 3 log10 CFU/ml reduction (>99.999%) of E. coli in an actual wastewater system. We further estimated the effect of plasma on the ampicillin (blaTEM ) and tetracycline (tet) resistance genes. The results demonstrated that an applied plasma dose of 1.06 kJ/cm2 could significantly (P < .05) eliminate the extracellular (e-) blaTEM and tet genes by 3.26 and 3.14 log10 copies/ml, respectively. Higher plasma intensity was required for the efficient reduction of intracellular (i-)antibiotic resistance genes (ARGs) than extracellular (e-)ARGs due to the shielding effect of the outer envelopes or intracellular components. The inactivation of E. coli and the degradation of e- and i-ARGs can be well described by the Weibull models. The results here provide the evidence for the potential of the plasma technology as a water/wastewater treatment technology 
650 4 |a Journal Article 
650 4 |a Antibiotic resistance contaminants 
650 4 |a atmospheric cold plasma 
650 4 |a kinetics 
650 4 |a mechanisms 
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650 7 |a Plasma Gases  |2 NLM 
650 7 |a Waste Water  |2 NLM 
700 1 |a Liu, Donghong  |e verfasserin  |4 aut 
700 1 |a Chen, Shiguo  |e verfasserin  |4 aut 
700 1 |a Ye, Xingqian  |e verfasserin  |4 aut 
700 1 |a Ding, Tian  |e verfasserin  |4 aut 
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