Application of activated persulfate for the inactivation of fecal bacterial indicators in water

Venieri, Danae; Karapa, Alexandra; Παναγιωτοπούλου, Μαρία; Gounaki, Iosifina

doi:10.1016/j.jenvman.2020.110223

Cited by 29 publications

(6 citation statements)

References 34 publications

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“…The necessary equipment (e.g., glass vessels, Eppendorf tubes, pipette tips, stirring magnets, beakers, nutrient medium, ultrapure water, and 0.8% w/v NaCl aqueous solution) for carrying out all inactivation experiments was sterilized in an autoclave. Details of bacteria cultivation, concentration estimation, and the execution of inactivation experiments can be found in the supplementary material [65][66][67].…”

Section: Experimental Procedures Of Disinfectionmentioning

confidence: 99%

Assessing the Efficacy of A Mo2C/Peroxydisulfate System for Tertiary Wastewater Treatment: A Study of Losartan Degradation, E. coli Inactivation, and Synergistic Effects

Ioannidi,

Vlachodimitropoulou,

Frontistis

et al. 2023

Catalysts

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This work examines the use of pristine Mo2C as an intriguing sodium persulfate (SPS) activator for the degradation of the drug losartan (LOS). Using 500 mg/L Mo2C and 250 mg/L SPS, 500 μg/L LOS was degraded in less than 45 min. LOS decomposition was enhanced in acidic pH, while the apparent kinetic constant decreased with higher LOS concentrations. According to experiments conducted in the presence of scavengers of reactive species, sulfate radicals, hydroxyl radicals, and singlet oxygen participated in LOS oxidation, with the latter being the predominant reactive species. The presence of competitors such as bicarbonate and organic matter reduced the observed efficiency in actual matrices, while, interestingly, the addition of chloride accelerated the degradation rate. The catalyst showed remarkable stability, with complete LOS removal being retained after five sequential experiments. The system was examined for simultaneous LOS decomposition and elimination of Escherichia coli. The presence of E. coli retarded LOS destruction, resulting in only 30% removal after 3 h, while the system was capable of reducing E. coli concentration by 1.23 log. However, in the presence of simulated solar irradiation, E. coli was reduced by almost 4 log and LOS was completely degraded in 45 min, revealing a significant synergistic effect of the solar/Mo2C/SPS system.

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Section: Experimental Procedures Of Disinfectionmentioning

confidence: 99%

Assessing the Efficacy of A Mo2C/Peroxydisulfate System for Tertiary Wastewater Treatment: A Study of Losartan Degradation, E. coli Inactivation, and Synergistic Effects

Ioannidi,

Vlachodimitropoulou,

Frontistis

et al. 2023

Catalysts

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“…( 4) and ( 5)), resulting in the formation of a critical PS concentration (Moreno-Andrés et al, 2019). For example, Venieri et al (2020) showed that for the Fe 2+ /PS system, the inactivation efficiency first increased with the increase of PS concentration, while the inactivation efficiency decreased instead when the PS concentration increased from 0.8 mmol/L to 1.3 mmol/L. Later, Wang et al (2020a) introduced magnetic hydrochar (MHC) into the VL/PS system, and the results showed that the introduction of MHC enhances the inactivation rate…”

Section: Inactivation Kineticsmentioning

confidence: 99%

“…Venieri et al (2020) explored the inactivation effect of UVA/PS on E. coli and found that 300 mg/L PS can inactivate 6 log of E. coli after UVA irradiation for 180 min Rodríguez-Chueca et al (2017b). investigated the inactivation efficiency of several bacteria by PMS under UV-A LED and fitted their inactivation kinetics.…”

mentioning

confidence: 99%

Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

Zhou

Ren

et al. 2022

Front. Environ. Sci. Eng.

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Sulfate radicals have been increasingly used for the pathogen inactivation due to their strong redox ability and high selectivity for electron-rich species in the last decade. The application of sulfate radicals in water disinfection has become a very promising technology. However, there is currently a lack of reviews of sulfate radicals inactivated pathogenic microorganisms. At the same time, less attention has been paid to disinfection by-products produced by the use of sulfate radicals to inactivate microorganisms. This paper begins with a brief overview of sulfate radicals’ properties. Then, the progress in water disinfection by sulfate radicals is summarized. The mechanism and inactivation kinetics of inactivating microorganisms are briefly described. After that, the disinfection by-products produced by reactions of sulfate radicals with chlorine, bromine, iodide ions and organic halogens in water are also discussed. In response to these possible challenges, this article concludes with some specific solutions and future research directions.

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“…Advanced oxidation processes (AOPs) generate various free radicals, and recently, AOPs have been proposed to treat sewage and sludge. Fenton and Fenton-like processes have been indicated to effectively remove pathogenic microorganisms in sewage (Tong et al, 2020;Venieri et al, 2020;Wang et al, 2020). The persulfate at 0.5 mM activated by solar energy may contribute to a 6.0 log unit reduction in bacteria in sewage after 2 h of reaction (Ferreira et al, 2020).…”

Section: Chemical Oxidationmentioning

confidence: 99%

Inactivation and risk control of pathogenic microorganisms in municipal sludge treatment: A review

Song

Liu

et al. 2021

Front. Environ. Sci. Eng.

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The rapid global spread of coronavirus disease 2019 (COVID-19) has promoted concern over human pathogens and their significant threats to public health security. The monitoring and control of human pathogens in public sanitation and health facilities are of great importance. Excessive sludge is an inevitable byproduct of sewage that contains human and animal feces in wastewater treatment plants (WWTPs). It is an important sink of different pollutants and pathogens, and the proper treatment and disposal of sludge are important to minimize potential risks to the environment and public health. However, there is a lack of comprehensive analysis of the diversity, exposure risks, assessment methods and inactivation techniques of pathogenic microorganisms in sludge. Based on this consideration, this review summarizes the control performance of pathogenic microorganisms such as enterovirus, Salmonella spp., and Escherichia coli by different sludge treatment technologies, including composting, anaerobic digestion, aerobic digestion, and microwave irradiation, and the mechanisms of pathogenic microorganism inactivation in sludge treatment processes are discussed. Additionally, this study reviews the diversity, detection methods, and exposure risks of pathogenic microorganisms in sludge. This review advances the quantitative assessment of pathogenic microorganism risks involved in sludge reuse and is practically valuable to optimize the treatment and disposal of sludge for pathogenic microorganism control.

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Application of activated persulfate for the inactivation of fecal bacterial indicators in water

Cited by 29 publications

References 34 publications

Assessing the Efficacy of A Mo2C/Peroxydisulfate System for Tertiary Wastewater Treatment: A Study of Losartan Degradation, E. coli Inactivation, and Synergistic Effects

Assessing the Efficacy of A Mo2C/Peroxydisulfate System for Tertiary Wastewater Treatment: A Study of Losartan Degradation, E. coli Inactivation, and Synergistic Effects

Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

Inactivation and risk control of pathogenic microorganisms in municipal sludge treatment: A review

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