Removal and inactivation of virus by drinking water treatment in the presence of bromide or iodide

Zhang, Q.; Liu, B.; Liu, Y.; Cai, Xuan; Liu, X.; Dai, Ruwei

doi:10.3103/s1063455x15020095

Cited by 5 publications

(5 citation statements)

References 18 publications

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“…In that previous case, the maximum value of 0.16 mgO 3 /L corresponding to 30 s of treatment was required to achieve total E. coli depletion [26]. The presence of real wastewater and its constituents such as organic matter and ionic species affects significantly the disinfection treatment [20,25,32], which will entail a higher ozone dose required for an effective disinfection. The initial E. coli concentration determined to be in the secondary municipal wastewater was of about 4 log which is not significantly different from the load tested with the spiked ultrapure water [26].…”

Section: E Coli Removal From Municipal Wastewatermentioning

confidence: 94%

Removal of Enteric Pathogens from Real Wastewater Using Single and Catalytic Ozonation

Gomes

Frasson

Quinta‐Ferreira

et al. 2019

Water

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Water scarcity is one of the main problems of this century. Water reclamation appears as an alternative due to the reuse of treated wastewater. Therefore, effluents treatment technologies (activated sludge, rotary biological discs, percolating beds) must be improved since they are not able to remove emerging contaminants such as enteric pathogens (bacteria and virus). These pollutants are difficult to remove from the wastewater and lead to adverse consequences to human health. Advanced oxidation processes, such as single and catalytic ozonation, appear as suitable complements to conventional processes. Catalytic ozonation was carried out using a low-cost material, a volcanic rock. Single and catalytic ozonation were capable of promoting total Escherichia coli removal from municipal wastewater after 90 min of contact. The presence of volcanic rock increases disinfection efficiency since E. coli regrowth was not observed. The identified viruses (Norovirus genotype I and II and JC virus) were completely removed using catalytic ozonation, whereas single ozonation was not able to eliminate JC virus even after 150 min of treatment. The higher performance of the catalytic process can be explained by the formation of hydroxyl radicals, proving that disinfection occurs in the liquid bulk and not due to adsorption at the volcanic rock.

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Section: E Coli Removal From Municipal Wastewatermentioning

confidence: 94%

Removal of Enteric Pathogens from Real Wastewater Using Single and Catalytic Ozonation

Gomes

Frasson

Quinta‐Ferreira

et al. 2019

Water

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“…replace oxygen of carbonyl with S atom (Scheme 10a). RSP derivative (14) served as a useful platform to construct colorimetric naked eye and fluorescence-based turn-on sensors by taking the advantage of the opening of spirolactam ring. This sensing probe, upon coordination with Hg + 2 and ClO 4 , serves as a selective fluorescent probe for iodide ions.…”

Section: R E V I E W T H E C H E M I C a L R E C O R Dmentioning

confidence: 99%

“…[12] Apart from its roles of inadequacy or disproportionate availability, iodine plays a significant role in treating skin diseases caused by fungi, bacteria, and amoebas. [14] Elemental iodine has been widely used in the synthesis of organic compounds, dyes, and medicines; so recently a very high concentration of iodine has been observed in groundwater and soil due to unrestrained and unregulated industrial activities. [15] Thus, vital ecological and health-related effects necessitate the sensitive, rapid, selective, and reproducible tracking of iodine or iodide ions in pharmaceutical products, food samples, biological samples such as urine and blood, and environmental samples.…”

Section: Impact Of Halide Ions On Human Healthmentioning

confidence: 99%

“…Similarly, the excessive intake of iodine into the body can lead to hyperthyroidism (HT) and ailments like Hashimoto's disease and Grave's disease [12] . Apart from its roles of inadequacy or disproportionate availability, iodine plays a significant role in treating skin diseases caused by fungi, bacteria, and amoebas [14] . Elemental iodine has been widely used in the synthesis of organic compounds, dyes, and medicines; so recently a very high concentration of iodine has been observed in groundwater and soil due to unrestrained and unregulated industrial activities [15] .…”

Section: Introductionmentioning

confidence: 99%

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Optical Chemical Sensing of Iodide Ions: A Comprehensive Review for the Synthetic Strategies of Iodide Sensing Probes, Challenges, and Future Aspects

Mansha

Khan

Abdulaziz

et al. 2022

The Chemical Record

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Among several anions, iodide (I−) ions play a crucial role in human biological activities. In it's molecular form (I2), iodine is utilized for several industrial applications such as syntheses of medicines, fabric dyes, food additives, solar cell electrolytes, catalysts, and agrochemicals. The excess or deficiency of I− ions in the human body and environmental samples have certain consequences. Therefore, the selective and sensitive detection of I− ions in the human body and environment is vital for monitoring their overall profile. Amongst various analytical techniques for the estimation of I− ions, optical–chemical sensing possesses the merits of high sensitivity, selectivity, and utilizing the least amount of sensing materials. The distinctive aims of this manuscript are (i) To comprehensively review the development of optical chemical sensors (fluorescent & colorimetric) reported between 2001–2021 using organic fluorescent molecules, supramolecular materials, conjugated polymers, and metal‐organic frameworks (MOFs). (ii) To illustrate the design and synthetic strategies to create specific binding and high affinity of I− ions which could help minimize negative consequences associated with its large size and high polarizability. (iii) The challenges associated with sensitivity and selectivity of I− ions in aqueous and real samples. The probable future aspects concerning the optical chemical detection of I− ions have also been discussed in detail.

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“…Over the past decades, traditional disinfection methods can inactivate viruses to some extent. Chlorination, chlorine dioxide [3], ozone, bromide, and iodide [4], as well as combined technologies [5], are widely used to control waterborne pathogens, even though many byproducts with harmful long-term effects are produced, along with operational problems of onsite generation [6]. Therefore, there is an extreme demand for a low-budget, efficient and environmentally-friendly viral inactivation technology.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Inactivation of Bacteriophage f2 with Ag3PO4/g-C3N4 Composite under Visible Light Irradiation: Performance and Mechanism

Cheng

Shen

et al. 2018

Catalysts

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Water-borne virus pollution has caused great harm and attracted widespread attention in many countries. Visible-light-driven photocatalysis is considered as a promising process for disinfection. In this study, Ag3PO4/g-C3N4 (AgCN) composites were synthesized by hydrothermal method. The photocatalytic disinfection was investigated using bacteriophage f2 as the model virus. Moreover, the effects of pH and humic acid on photocatalytic disinfection were studied. Meanwhile, the mechanism of enhanced disinfection by Ag3PO4/g-C3N4 was systematically investigated by radical scavenger experiments. The results show that Ag3PO4 particles were uniformly distributed on g-C3N4 sheets. By means of photoluminescence spectrometer analysis, it is confirmed that a lower carrier recombination rate for Ag3PO4/g-C3N4 was achieved compared with Ag3PO3 and g-C3N4. Meanwhile, complete inactivation of f2 with concentration of 3 × 106 PFU/mL was reached within 80 min in the presence of Ag3PO4/g-C3N4 composite. The pH had little effect on removal efficiency overall, while the existence of humic acid resulted in a significant negative effect on the inactivation of f2 due to the optical shielding and absorption of humic acid. Recycling tests of Ag3PO4/g-C3N4 confirmed that Ag3PO4/g-C3N4 presented superior stability. The results from radical scavenger experiments indicated that holes (h+) and hydroxyl radicals (·OH) played important roles in photocatalytic disinfection process.

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Removal and inactivation of virus by drinking water treatment in the presence of bromide or iodide

Cited by 5 publications

References 18 publications

Removal of Enteric Pathogens from Real Wastewater Using Single and Catalytic Ozonation

Removal of Enteric Pathogens from Real Wastewater Using Single and Catalytic Ozonation

Optical Chemical Sensing of Iodide Ions: A Comprehensive Review for the Synthetic Strategies of Iodide Sensing Probes, Challenges, and Future Aspects

Photocatalytic Inactivation of Bacteriophage f2 with Ag3PO4/g-C3N4 Composite under Visible Light Irradiation: Performance and Mechanism

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