Emergency water treatment with ferrate(<scp>vi</scp>) in response to natural disasters

Cui, Junkui; Zheng, Lei; Deng, Yang

doi:10.1039/c7ew00467b

Cited by 27 publications

(16 citation statements)

References 41 publications

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“…The ferrate(VI) injection is a fundamental parameter as it influences the elimination performances of different pollutants and touches the size distributions of iron and metal/metalloid contaminants following ferrate(VI) degradation [43].…”

Section: Discussionmentioning

confidence: 99%

“…Cui et al [43] performed bench-scale trials to estimate ferrate(VI) for treating simulated disaster-polluted water. They proved that ferrate(VI) treatment can together and efficiently demobilize microbial parameters, eliminate metal and metalloid pollutants, decompose dissolved organic matter, and decrease turbidity, whereas insignificantly augmenting total dissolved solids (TDS) to guarantee an allowable TDS ≤ 1000 mg/L (the recommended minimum TDS standard for an emergency water supply) [43]. The ferrate(VI) injection possessed a fundamental contribution, as it immediately affected the elimination rates and also influenced the size distributions of iron [44] [45] and metal/metalloid pollutants after treatment.…”

Section: Ferrate(vi) For Emergency Water Treatment (Ewt)mentioning

confidence: 99%

“…Removals of total coliforms and E. coli at various ferrate(VI) injections during the ferrate(VI) treatment of sewage polluted surface water[43].…”

mentioning

confidence: 99%

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Mechanistic Insight into Disinfection Using Ferrate(VI)

Ghernaout¹,

Elboughdiri²

2019

OALib

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Disinfection, chemical oxidation, and coagulation are key methods in water treatment. A chemical that may be used for all these targets is ferrate(VI). This work tries to bring some light into mechanisms implied throughout killing microbes using ferrate(VI). In acidic pH, the oxidation and reduction capacity of ferrate(VI) is superior to all currently utilized oxidizers and disinfectants in water and wastewater treatment. The technology of using ferrate(VI) for coagulation, chemical oxidation and disinfection of water and wastewater in a reactor simultaneously, can reduce the size of water and wastewater treatment plants and increase the treatment efficiency. Ferrate(VI) allows a novel emergency water treatment design for disaster-affected populations through the repercussions of natural disasters, through the concurrent and efficient elimination of microbial and chemical pollutants. The ferrates' elevated performance and utilization as a green element for water treatment propose that these techniques remain greatly convenient for usage as pre-or post-treatment in traditional wastewater plants. It seems that there is no big difference in terms of ferrate's action on pathogens with other chemical disinfectants. However, ferrate was found to be requiring lower needed doses as compared with other chemicals. More researches on disinfection by-products formation following ferrate injection as a disinfectant are required. Finally, ferrate(VI) deserves more attention to be used more largely through worldwide wastewater treatment plants.

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Section: Discussionmentioning

confidence: 99%

Section: Ferrate(vi) For Emergency Water Treatment (Ewt)mentioning

confidence: 99%

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Mechanistic Insight into Disinfection Using Ferrate(VI)

Ghernaout¹,

Elboughdiri²

2019

OALib

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“…There are, of course, disadvantages of Fe(VI) as compared to O3, including the handing of ferric iron solids (Yates et al, 2014b). Most Fe(VI) adaptation has been in treatment of industrial wastes, and utilization for drinking water treatment is limited (Cui et al, 2018;, partly due to lack of information on performance, and extant research needs. No research has directly compared the effects of ferrate and ozone pre-oxidation on DBP formation from chlorination or chloramination, especially when there are elevated levels of bromide and iodide.…”

Section: Introductionmentioning

confidence: 99%

Comparison of ferrate and ozone pre-oxidation on disinfection byproduct formation from chlorination and chloramination

et al. 2019

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This study investigated the effects of ferrate and ozone pre-oxidation on disinfection byproduct (DBP) formation from subsequent chlorination or chloramination. Two natural waters were treated at bench-scale under various scenarios (chlorine, chloramine, each with ferrate pre-oxidation, and each with pre-ozonation). The formation of brominated and iodinated DBPs in fortified natural waters was assessed. Results indicated ferrate and ozone pre-oxidation were comparable at molar equivalent doses for most DBPs. A net decrease in trihalomethanes (including iodinated forms), haloacetic acids (HAAs), dihaloacetonitrile, total organic chlorine, and total organic iodine was found with both pre-oxidants as compared to chlorination only. An increase in chloropicrin and minor changes in total organic bromine yield were caused by both pre-oxidants compared to chlorination only. However, ozone led to higher haloketone and chloropicrin formation potentials than ferrate. 2 The relative performance of ferrate versus ozone for DBP precursor removal was affected by water quality (e.g., nature of organic matter and bromide concentration) and oxidant dose, and varied by DBP species. Ferrate and ozone pre-oxidation also decreased DBP formation from chloramination under most conditions. However, some increases in THM and dihaloacetonitrile formation potentials were observed at elevated bromide levels.

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“…El incremento de O2 disuelto se debe a que el ferrato (VI) oxida el agua liberando oxígeno, de acuerdo con la siguiente reacción (Cui, Zheng y Deng, 2018;Goff, Kidwell, Lauher y Murmann, 1973…”

Section: Construcción De Curva De Crecimiento De La Bacteria Salmonelunclassified

Estudio de eficacia de desinfección en base a iones ferrato para la remediación de agua contaminada con Salmonella typhimurium destinada al riego de cultivos

Mogrovejo-García¹,

Cocchella-Beas²

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Emergency water treatment with ferrate(vi) in response to natural disasters

Abstract: The frequency and magnitude of natural disasters (e.g. hurricanes) have increased globally over the past century.

Cited by 27 publications

References 41 publications

Mechanistic Insight into Disinfection Using Ferrate(VI)

Mechanistic Insight into Disinfection Using Ferrate(VI)

Comparison of ferrate and ozone pre-oxidation on disinfection byproduct formation from chlorination and chloramination

Estudio de eficacia de desinfección en base a iones ferrato para la remediación de agua contaminada con Salmonella typhimurium destinada al riego de cultivos

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