Inactivation of pathogenic microorganisms by sulfate radical: Present and future

Xiao, Ruiyang; Li, Kai; Bai, Lu; Minakata, Daisuke; Seo, Young-Woo; Göktaş, Recep Kaya; Dionysiou, Dionysios D.; Tang, Chong–Jian; Wei, Zongsu; Spinney, Richard

doi:10.1016/j.cej.2019.03.296

Cited by 129 publications

(42 citation statements)

References 98 publications

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“…The sulfate concentration for 0K media and inoculum was 7.28 gL -1 , and 14.59 gL -1 respectively, which were contributed by the total acid added media components, and sulfur oxidation. Several studies on the influence of sulphate ions on microbial activity have motivated to count the viable cells and understand the microbial dynamics [22]. Improvement in biodegradation process of either waste/waste water it is critical to control the process water carefully for a better understanding of the microbial system [23].…”

Section: Methodsmentioning

confidence: 99%

Bench scale microbial catalysed leaching of mobile phone PCBs with an increasing pulp density

Garg

Nagar

Ellamparuthy

et al. 2019

Heliyon

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The study reports the effect of increasing pulp density on the bio-catalyzed leaching of metals from waste mobile phone printed circuit boards. Mixed microbial consortia of iron and sulfur-oxidizing microorganisms were used for batch bioleaching at varying pulp density of 7%, 10% and 15% (w/v). The copper content in the feed material was 26.3% (w/w) and the prime focus was to recover maximum copper along with other minor metals, such as zinc, aluminum, and nickel. All the bioleaching experiments resulted with 98–99% of copper recovery together with reasonable extraction Zn, Al, and Ni. The optimum copper recovery from bioleaching experiments demonstrates the possibility of scaling up with high pulp density, which could be economical as well as eco-friendly.

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Section: Methodsmentioning

confidence: 99%

Bench scale microbial catalysed leaching of mobile phone PCBs with an increasing pulp density

Garg

Nagar

Ellamparuthy

et al. 2019

Heliyon

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show abstract

“…and chemical disinfectants (hydrogen peroxide and chlorine dioxide etc.) [ 87 ]. However, the exact mechanisms underlying microbial inactivation by EW have not been fully elucidated.…”

Section: Disinfection Mechanisms Of Ewmentioning

confidence: 99%

New Clinical Applications of Electrolyzed Water: A Review

Yan

Daliri

2021

Microorganisms

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As the situation of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is still deteriorating, there has been a huge increase in the demand and use of disinfectants. Electrolyzed water (EW), as a novel broad-spectrum disinfectant and cleaner, has been widely used for several years. EW can be produced in an electrolysis chamber which contains dilute salt and tap water. It is an effective antimicrobial and antibiofilm agent, with several advantages such as on-the-spot, cheap, environmentally friendly and safe for human beings. Therefore, EW holds potential significance for high-risk settings in hospitals and other clinical facilities. EW can also be applied for wound healing, advanced tissue care, and dental clinics. The present review article highlights the latest developments and new perspectives of EW, especially in clinical fields. Furthermore, the main action modes of antibiofilm and antimicrobial will be summarized.

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“…Moreover, the UV-B component in solar irradiation is confirmed to have a direct damaging effect upon DNA (Feng et al 2020 ). Although pathways of inactivation of biomolecules—carbohydrates, lipids, proteins, and DNA—via OH • have been intensely discussed in the literature, reaction mechanisms between SO 4 • − and these molecules are not yet fully elucidated (Xiao et al 2019 ). A recent study suggests that higher inactivation of ARB via sulfate radical–based AOPs may be related to the coexistence of OH• and SO 4 •− radicals in the system at neutral pH (Xiao et al 2019 ).…”

Section: Resultsmentioning

confidence: 99%

“…Results obtained by Esteban García et al (2018) for E. coli removal via solar/Fe/H 2 O 2 were similar to those observed here for solar/Fe/S 2 O 8 2− . Although it is still necessary to investigate mechanisms of cell damage via sulfate radical-based oxidation processes, it is known that external and internal cell photo-Fenton reactions occur via oxidation by hydroxyl radicals (Feng et al 2020;Xiao et al 2019). (Serna-Galvis et al 2019b).…”

Section: Impact Of Treatments On Acute Toxicity and Disinfectionmentioning

confidence: 99%

Persulfate mediated solar photo-Fenton aiming at wastewater treatment plant effluent improvement at neutral PH: emerging contaminant removal, disinfection, and elimination of antibiotic-resistant bacteria

Starling

Costa

Souza

et al. 2021

Environ Sci Pollut Res

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This work investigated an innovative alternative to improve municipal wastewater treatment plant effluent (MWWTP effluent) quality aiming at the removal of contaminants of emerging concern (caffeine, carbendazim, and losartan potassium), and antibiotic-resistant bacteria (ARB), as well as disinfection (E. coli). Persulfate was used as an alternative oxidant in the solar photo-Fenton process (solar/Fe/S2O82−) due to its greater stability in the presence of matrix components. The efficiency of solar/Fe/S2O82− at neutral pH using intermittent iron additions is unprecedented in the literature. At first, solar/Fe/S2O82− was performed in a solar simulator (30 W m−2) leading to more than 60% removal of CECs, and the intermittent iron addition strategy was proved effective. Then, solar/Fe/S2O82− and solar/Fe/H2O2 were compared in semi-pilot scale in a raceway pond reactor (RPR) and a cost analysis was performed. Solar/Fe/S2O82− showed higher efficiencies of removal of target CECs (55%), E. coli (3 log units), and ARB (3 to 4 log units) within 1.9 kJ L−1 of accumulated irradiation compared to solar/Fe/H2O2 (CECs, 49%; E. coli, 2 log units; ARB, 1 to 3 log units in 2.5 kJ L−1). None of the treatments generated acute toxicity upon Allivibrio fischeri. Lower total cost was obtained using S2O82− (0.6 € m−3) compared to H2O2 (1.2 € m−3). Therefore, the iron intermittent addition aligned to the use of persulfate is suitable for MWWTP effluent quality improvement at neutral pH.

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Inactivation of pathogenic microorganisms by sulfate radical: Present and future

Cited by 129 publications

References 98 publications

Bench scale microbial catalysed leaching of mobile phone PCBs with an increasing pulp density

Bench scale microbial catalysed leaching of mobile phone PCBs with an increasing pulp density

New Clinical Applications of Electrolyzed Water: A Review

Persulfate mediated solar photo-Fenton aiming at wastewater treatment plant effluent improvement at neutral PH: emerging contaminant removal, disinfection, and elimination of antibiotic-resistant bacteria

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