Solar photo-Fenton disinfection of 11 antibiotic-resistant bacteria (ARB) and elimination of representative AR genes. Evidence that antibiotic resistance does not imply resistance to oxidative treatment

Giannakis, Stefanos; Le, Truong-Thien Melvin; Entenza, José M.; Pulgarín, C.

doi:10.1016/j.watres.2018.06.062

Cited by 145 publications

(37 citation statements)

References 61 publications

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“…There are also several reports on the application of solar Fenton in pilot plants for the degradation of different micropollutants [ 16 , 17 , 18 ]. More recently, some researchers have also demonstrated the simultaneous disinfection or removal of antibiotic-resistant genres using solar Fenton [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Degradation of the Nonsteroidal Anti-Inflammatory Drug Piroxicam by Iron Activated Persulfate: The Role of Water Matrix and Ultrasound Synergy

Frontistis

2018

IJERPH

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This work examined the oxidation of Piroxicam (PIR), a representative nonsteroidal anti-inflammatory drug using iron activated persulfate. The effect of persulfate dosing was vital for the efficiency of the process. The addition of 20 mg/L sodium persulfate (SPS) eliminated 500 μg/L of PIR in less than 20 min at natural pH. PIR decomposition followed pseudo-first-order kinetics, and the observed kinetic constant increased by 2.1 times when the initial concentration of PIR decreased from 2000 to 250 μg/L. Acidic pH favored the PIR destruction, while both sulfate and hydroxyl radicals are involved in PIR destruction at natural pH. The effect of inorganic ions like bicarbonate and chlorides was almost insignificant on PIR removal. The presence of humic acid reduced PIR removal from 100% to 67% after 20 min of treatment with 2 mg/L Fe2+ and 20 mg/L SPS. The experiment that was performed with bottled water showed similar efficiency with ultrapure water, while in the case of secondary effluent, PIR removal decreased by 26% after 30 min of treatment. The Fe2+/SPS/ultrasound hybrid process showed a low degree of synergy (18.3%). The ecotoxicity of aqueous solution using the Vibrio fischeri as an indicator was reduced during the treatment, although with a different trend from the removal of PIR, possibly due to byproducts derived from the oxidation of secondary effluent and PIR.

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Section: Introductionmentioning

confidence: 99%

Degradation of the Nonsteroidal Anti-Inflammatory Drug Piroxicam by Iron Activated Persulfate: The Role of Water Matrix and Ultrasound Synergy

Frontistis

2018

IJERPH

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“…Indeed, the question of the evolution of ARB will remain relevant only if the ROS produced during AOP is not sufficient enough to kill the bacteria. A graphical representation of ROS induced effects on bacterial survival/death is described in Figure 1 (Giannakis et al, 2018). In another study, the perineal exposure of E. coli to photocatalysis was found to have an accelerated impact on the ARB evolution (Yin et al, 2020).…”

Section: Stress Response and Abr-the Extended Role Of Ros In Disinfecmentioning

confidence: 99%

Advanced Oxidation Process Based Water Disinfection- the Microbiology Beyond Bacterial Inactivation

Mishra¹,

Cs²,

Sk³

2020

Preprint

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Different water treatment regiments are revealed to have potential in enriching antibiotic resistant bacteria (ARB). Advanced oxidation processes (AOPs) based disinfection techniques have been studied widely in the recent times due to their advantages over conventional treatment methods. However, bacterial response and adaptations against the hostile environments of AOPs is not clearly understood yet. Based on the existing knowledge on the ways in which bacteria surpass the antibiotic treatment, here we propose few important aspects of bacterial adaptation which could be true for AOPs as well since both antibiotics and AOPs generate reactive oxygen species (ROS) during their modes of action. We discuss the plausible role of ROS in the selection of ARB and bacterial heterogeneity as a strategy to bypass the lethal action of AOPs. Understanding bacterial adaptation during disinfection plays a vital role in devising strategies to outclass the bacterial survival. Hence, more importance should be given to such studies in the near future for the successful implementation of AOPs.

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“…H 2 O 2 can destroy the barrier structure of bacteria and change the osmotic pressure and permeability of bacteria, which is conducive to the other substances entering the bacteria [33]. The •OH can oxidize amino acids, proteins, sugars, lipids, and nucleic acids in bacterial cells by addition reaction, electron transfer, and dehydrogenation to attain the aim of killing the bacteria.…”

Section: The Disinfection Mechanism Of Fenton-like Reactionmentioning

confidence: 99%

Study on the Inactivation of Pseudomonas sp and the Degradation of Trichloroethylene by Fenton-Like Reaction

Zhong¹,

He²,

Ma³

et al. 2018

Water

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The present work intended to use goethite, one of the main compositions of pipe deposit, to combine with H2O2 to degrade TCE or disinfect drinking water. Goethite exhibited excellent degradation performance for TCE, outstanding inactivation ability for Pseudomonas and the disinfection effect for filter water of water treatment plants. The TCE degradation efficiency could reach 87.4%, while the inactivation efficiency of Pseudomonas and the bacterial mortality rate in filtered water were more than 99.9% in this study. In order to effectively reduce the disinfection by-products (chlorine-resistant bacteria) and conduct permanent disinfection, the Fenton-like and chlorine combined disinfection method was also investigated. Experimental results indicated that the bacteria could be effectively killed by this combined method and the chlorine residual was 0.41m g/L, ensuring sustainable disinfection. This work verified that the pipe deposit from the water distribution network is multifunctional, which is a potential candidate for pollutant removal and sterilization. The results could also offer theoretical support for water quality security in water distribution networks in the future.

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Solar photo-Fenton disinfection of 11 antibiotic-resistant bacteria (ARB) and elimination of representative AR genes. Evidence that antibiotic resistance does not imply resistance to oxidative treatment

Cited by 145 publications

References 61 publications

Degradation of the Nonsteroidal Anti-Inflammatory Drug Piroxicam by Iron Activated Persulfate: The Role of Water Matrix and Ultrasound Synergy

Degradation of the Nonsteroidal Anti-Inflammatory Drug Piroxicam by Iron Activated Persulfate: The Role of Water Matrix and Ultrasound Synergy

Advanced Oxidation Process Based Water Disinfection- the Microbiology Beyond Bacterial Inactivation

Study on the Inactivation of Pseudomonas sp and the Degradation of Trichloroethylene by Fenton-Like Reaction

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