Transformation pathways of arsenic species: SRB mediated mechanism and seasonal patterns

Shi, Wen‐Jing; Song, Wenjie; Luo, Yu; Qile, Geer; Zheng, Jiaxuan; Lü, Changwei; He, Jing

doi:10.1016/j.chemosphere.2020.128255

Cited by 9 publications

(2 citation statements)

References 65 publications

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“…Similarly, the redox sensitive element S can also impact the mobilization and toxicity of arsenic during its oxidation–reduction transformations. Shi et al 130 . stated that the seasonal mobilization of arsenic was controlled by SRB‐mediated reduction, which significantly enhanced arsenic (V) reduction and its endogenous release and which displayed strong seasonal variability.…”

Section: Drawbacks Of the New Processesmentioning

confidence: 99%

“…Similarly, the redox sensitive element S can also impact the mobilization and toxicity of arsenic during its oxidation-reduction transformations. Shi et al 130 stated that the seasonal mobilization of arsenic was controlled by SRB-mediated reduction, which significantly enhanced arsenic (V) reduction and its endogenous release and which displayed strong seasonal variability. Therefore, Feammox and Sulfammox may not be a good choice for NH 4 + removal in natural environments due to its effects on the mobilization of arsenic, a hazardous material responsible for lung and skin cancers.…”

Section: Drawbacks Of the New Processesmentioning

confidence: 99%

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A review on new ammonium oxidation alternatives for effective nitrogen removal from wastewater

Zhao

Feng

et al. 2022

J of Chemical Tech & Biotech

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As a highly oxidizing ion, ammonium (NH4+) is easily reduced by other reducing substances. Recently, NH4+ oxidation coupled with Fe3+, SO42−, and Mn4+ reduction (i.e., Feammox, Sulfammox, and Mnammox) has been confirmed and their collaborative roles in removing NH4+ have been revealed in several studies. However, only limited knowledge could be obtained on observed interactions with several variable parameters due to the exiguous research in this field, which makes it challenging to draw basic and mechanistic conclusions. This review focuses on these new NH4+ oxidation alternatives and provides a systematic and comprehensive overview of recent advances in these processes. Specifically, based on the summaries of their reaction conditions, nine influencing factors (including microorganisms, concentrations of reactants, pH, redox potential, temperature, organic carbon, oxygen concentration, salinity, and inhibitory substances) are discussed in detail. Then, the drawbacks of the three processes are pointed out. The results show that, at present, the practical engineering applications for NH4+ removal are not suitable due to their harsh reaction conditions and low removal efficiency. Finally, suggestions for further research on these processes are presented to inspire more interest from researchers in related fields and to promote and realize their large‐scale engineering application in the near future. © 2022 Society of Chemical Industry (SCI).

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Section: Drawbacks Of the New Processesmentioning

confidence: 99%

Section: Drawbacks Of the New Processesmentioning

confidence: 99%