Advances Made in Understanding the Interaction of Ferrate(VI) with Natural Organic Matter in Water

Darko, Beatrice; Jiang, Jia‐Qian; Kim, Hyunook; Machala, Libor; Zbořil, Radek; Sharma, Virender K.

doi:10.1016/b978-0-12-411645-0.00008-0

Cited by 7 publications

(4 citation statements)

References 70 publications

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“…NOM is a complex organic and slightly water-soluble component that is available in surface water and groundwater. Plant and animal material and waste (dead plants/plant waste such as leaves/bush and tree trimmings/animal manure), wastewater effluents, algal extracellular organic matter, humic and fulvic acids, and free amino acids are mainly available as NOM in water. , During disinfection, the disinfectant reacts with the NOM, resulting in the formation of DBPs. ,,,− However, it is impossible to recognize the specific organic substances (components of the NOM responsible for DBPs) accountable for specific DBPs . The NOM concentration in surface water and groundwater varies between 2 and 10 mg/L .…”

Section: Overview Of Dbp Formationmentioning

confidence: 99%

Assessing the Health Impact of Disinfection Byproducts in Drinking Water

Kalita,

Kamilaris,

Havinga

et al. 2024

ACS EST Water

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This study provides a comprehensive investigation of the impact of disinfection byproducts (DBPs) on human health, with a particular focus on DBPs present in chlorinated drinking water, concentrating on three primary DBP categories (aliphatic, alicyclic, and aromatic). Additionally, it explores pivotal factors influencing DBP formation, encompassing disinfectant types, water source characteristics, and environmental conditions, such as the presence of natural materials in water. The main objective is to discern the most hazardous DBPs, considering criteria such as regulation standards, potential health impacts, and chemical diversity. It provides a catalog of 63 key DBPs alongside their corresponding parameters. From this set, 28 compounds are meticulously chosen for in-depth analysis based on the above criteria. The findings strive to guide the advancement of water treatment technologies and intelligent sensory systems for the efficient water quality surveillance. This, in turn, enables reliable DBP detection within water distribution networks. By enriching the understanding of DBP-associated health hazards and offering valuable insights, this research is aimed to contribute to influencing policy-making in regulations and treatment strategies, thereby protecting public health and improving safety related to chlorinated drinking water quality.

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Section: Overview Of Dbp Formationmentioning

confidence: 99%

Assessing the Health Impact of Disinfection Byproducts in Drinking Water

Kalita,

Kamilaris,

Havinga

et al. 2024

ACS EST Water

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“…During the formation and growth of flocs, the residual MC-LR was further removed by adsorption and precipitation [59]. Fe(II)-based solidification significantly improved the oxidation and flocculation efficiency of Fe(VI); so, the removal rate of MC-LR was also substantially improved [37,68]. In summary, although the combination of Fe(VI) and Fe(II) can dramatically promote the removal of algal cells, AOM, and algal toxins, the selection of Fe(VI) and Fe(II) doses should be carefully considered to avoid excessive pre-oxidation leading to severe cell lysis, IOM leakage, and severe impairment of coagulation.…”

Section: Fe(vi) Combined With Fe(ii) For Algal Removalmentioning

confidence: 99%

The Role of Ferrate (VI) in the Pretreatment of Algal Cells and Algal Organic Matters: A Review

Wang,

Yang,

Chen

et al. 2024

Water

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Algal blooms are caused by excessive levels of nitrogen, phosphorus, and other plant nutrients in water. Algae and algal organic matter (AOM) pose a great threat to the quality of drinking water. This manuscript offers a systematic review of algal removal by ferrate (Fe(VI)) oxidation, including the conditions for the removal of different algae by Fe(VI) and the factors affecting the removal efficiency. On this basis, the oxidation and coagulation mechanisms of algae removal by Fe(VI) are discussed. Then, the review introduces the process combining Fe(VI) pre-oxidation with aluminum sulfate action. The addition of aluminum sulfate can further enhance the coagulation effect and reduce the formation of disinfection byproducts (DBPs) in the subsequent chlorination process by effectively removing AOM, which is recognized as a precursor of DBPs. In addition, recent studies on the combined application of Fe(VI) and Fe(II) are also reviewed. In a reasonable dose range, the synergistic effect of Fe(VI) and Fe(II) can significantly improve the removal of algae and algal toxins. Finally, this review provides a comprehensive evaluation of the applicability of Fe(VI) in removing algal material, offers guidance for the harmless treatment of algae with Fe(VI), and identifies future research questions.

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“…In this review, we also consider DOM, a class of water-soluble NOM, since not all NOMs ( e.g. , humins and humic acid at low pH) are soluble in water . We also include the influence of effluent organic matter (EfOM), consisting of NOM, soluble microbial products (SMPs), and trace organic chemicals. , …”

Section: Comparison Of Radical and Nonradical Oxidation Processesmentioning

confidence: 99%

“…In this review, we also consider DOM, a class of watersoluble NOM, since not all NOMs (e.g., humins and humic acid at low pH) are soluble in water. 129 We also include the influence of effluent organic matter (EfOM), consisting of NOM, soluble microbial products (SMPs), and trace organic chemicals. 130,131 For radical systems, coexisting substances in natural waters can either inhibit or promote the degradation efficiency of contaminants.…”

Section: Water Matrixmentioning

confidence: 99%

Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes

Yan

Wei

Duan

et al. 2023

Environ. Sci. Technol.

189

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Urbanization and industrialization have exerted significant adverse effects on water quality, resulting in a growing need for reliable and eco-friendly treatment technologies. Persulfate (PS)-based advanced oxidation processes (AOPs) are emerging as viable technologies to treat challenging industrial wastewaters or remediate groundwater impacted by hazardous wastes. While the generated reactive species can degrade a variety of priority organic contaminants through radical and nonradical pathways, there is a lack of systematic and in-depth comparison of these pathways for practical implementation in different treatment scenarios. Our comparative analysis of reaction rate constants for radical vs. nonradical species indicates that radical-based AOPs may achieve high removal efficiency of organic contaminants with relatively short contact time. Nonradical AOPs feature advantages with minimal water matrix interference for complex wastewater treatments. Nonradical species (e.g., singlet oxygen, high-valent metals, and surface activated PS) preferentially react with contaminants bearing electron-donating groups, allowing enhancement of degradation efficiency of known target contaminants. For byproduct formation, analytical limitations and computational chemistry applications are also considered. Finally, we propose a holistically estimated electrical energy per order of reaction (EE/O) parameter and show significantly higher energy requirements for the nonradical pathways. Overall, these critical comparisons help prioritize basic research on PS-based AOPs and inform the merits and limitations of system-specific applications.

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Advances Made in Understanding the Interaction of Ferrate(VI) with Natural Organic Matter in Water

Cited by 7 publications

References 70 publications

Assessing the Health Impact of Disinfection Byproducts in Drinking Water

Assessing the Health Impact of Disinfection Byproducts in Drinking Water

The Role of Ferrate (VI) in the Pretreatment of Algal Cells and Algal Organic Matters: A Review

Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes

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