Facile synthesis of copper-substituted Prussian blue analog immobilized ion exchange resins for high-performance ammonium recovery from wastewater: Adsorption kinetics, isotherms, and regeneration

Kang, Seung-Gul; Lee, Bongjae; Ahn, Kwang–Ho; Im, Seongwon; Kim, Bokseong; Kim, Tae Hyun; Hwang, Yuhoon; Chae, Soryong

doi:10.1016/j.cej.2022.141128

Cited by 21 publications

(5 citation statements)

References 65 publications

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“…By interacting with the iron atoms in PB, PVP controls the rate of etching. 86 A greater PVP layer thickness inhibits etching, whereas a deficiency in PVP may lead to the formation of porous particles that are not uniform in appearance. The composition of the phases of iron oxide resulting from the calcination of these particles was dependent on the particle size and temperature.…”

Section: Methods For the Synthesis Of Prussian Blue And Prussian Blue...mentioning

confidence: 99%

From lab to field: Prussian blue frameworks as sustainable cathode materials

Anil Kumar,

Sana,

Ramachandran

et al. 2024

Dalton Trans.

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Section: Methods For the Synthesis Of Prussian Blue And Prussian Blue...mentioning

confidence: 99%

From lab to field: Prussian blue frameworks as sustainable cathode materials

Anil Kumar,

Sana,

Ramachandran

et al. 2024

Dalton Trans.

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“…Considering this information, the effect of the initial NH 3 -N concentration on electrolysis efficacy was investigated. The initial NH 3 -N concentration varied at 0.1, 0.3, and 0.5 M, as the adsorbent possibly produced the highest concentration (0.5 M) [11]. A current density of 60 mA cm −2 , indicating the most energy-effective condition (as shown in Figure 6), was selected for the experiments.…”

Section: Effect Of Initial Nh 3 Concentrationmentioning

confidence: 99%

“…Text S1. A method to adjust NH 3 -N concentration in SW [11]; Text S2. A procedure for particle separation; Text S3.…”

Section: Conclusion and Future Scopementioning

confidence: 99%

“…Therefore, recent research has been devoted to developing adsorbents that exhibit selectivity to NH 3 -N alongside a superb recovery ability [10]. In order to better the applications for NH 3 -N removal, we have synthesized a nanostructure-based, selective ammonium-exchange resin (AmER) that exhibits considerable performance in terms of both high selectivity for NH 4 + and the adsorption capacity [11]. In addition to its outstanding efficacy, the adsorbent synthesis was facile.…”

Section: Introductionmentioning

confidence: 99%

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Direct Electrooxidation of Ammonia-Enriched Wastewater Using a Bipolar Membrane-Integrated Electrolytic Cell

Kang,

Oh,

Lee

et al. 2024

Water

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The treatment of reject water containing concentrated ammonia and non-biodegradable organics is a challenging task in wastewater treatment plants. To address this problem, we propose a novel process consisting of a selective ammonium-exchange resin and an ammonia electrooxidation reaction (AmER-AOR). Because an alkaline condition is essential for direct ammonia oxidation, the use of a bipolar membrane (BPM) was helpful. Nonetheless, an initial pH of 13 and KOH addition were required to maintain a high alkalinity for the complete elimination of ammonia. The linear sweep voltammogram elucidated the high pH requirement and ammonia oxidation promotion. When the current density varied from 30 to 80 mA cm−2, 60 mA cm−2 showed the highest current efficiency (30.39%) and the lowest specific energy demand (95.3 kWh/kg-N), indicating the most energy-effective condition. Increasing the initial concentration of ammonia from 0.1 M to 0.5 M improved the current efficiency (51.57%), demonstrating an additional energy-effective strategy for the AmER-AOR. The energy efficiency of pure H2 production in the cathodic chamber was 30%. To estimate the viability for practical applications, reject water collected from a local wastewater treatment plant was applied in the AmER-AOR. Notably, no significant difference in the ammonia removal rate was observed with synthetic wastewater. To the best of our knowledge, this is the first study that employs a BPM as a separator and OH− supplier for direct ammonia oxidation. Our findings reveal that the AmER-AOR with a BPM has promising practical applicability in the treatment of reject water and energy production.

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“…The biosorbents present several advantages in comparison to traditional adsorbents, such as they are produced by simple and low-cost processes, they have high efficiency, and they are ease to use and environmentally friendly. Whereas the traditional synthetic adsorbents are mainly manufactured from non-biosourced materials, such as synthetic polymers 33 – 35 , ion exchange resins 36 , 37 and activated carbon 38 – 40 ; this means that they are not biodegradable. Their production consumes great amounts of raw materials and energy and can generate toxic by-products and have net negative environmental fingerprint.…”

Section: Introductionmentioning

confidence: 99%

High biosorption of cationic dye onto a novel material based on paper mill sludge

Merah,

Boudoukha,

Avalos Ramirez

et al. 2023

Sci Rep

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The valorization of paper mill sludge (PMS) is the main goal of this study. The emissions of PMS continue to increase at global scale, especially from packaging paper and board sectors. The raw sludge was used to prepare an adsorbent to remove toxic pollutants from wastewater, the methylene blue (MB), an organic dye. Firstly, the physico-chemical characterization of PMS was done determining the crystalline phases of PMS fibers, the content of main elements, and the pH zero point charge, which was determined at around pH 7. The adsorption of MB on PMS powder was studied at 18 °C with an agitation of 200 rpm, being the best operating conditions 30 min of contact time, 250 mg L−1 of initial MB concentration and 0.05 g in 25 mL of adsorbent dose. Experimental data of MB adsorption was fitted to Langmuir and Freundlich isotherm equations. The Langmuir model was more accurate for the equilibrium data of MB adsorption at pH 5.1. The PFOM and PSOM were adjusted to experimental adsorption kinetics data, being PSOM, which describes better the MB adsorption by PMS powder. This was confirmed by calculating the maximum adsorption capacity with PSOM, which was 42.7 mg g−1, being nearly similar of the experimental value of 43.5 mg g−1. The analysis of adsorption thermodynamics showed that the MB was adsorbed exothermically with a ΔH0 = − 20.78 kJ mol−1, and spontaneously with ΔG0 from − 0.99 to − 6.38 kJ mol−1 in the range of temperature from 291 to 363 K, respectively. These results confirm that the sludge from paper industry can be used as biosorbent with remarkable adsorption capacity and low cost for the treatment of wastewater. PMS can be applied in the future for the depollution of the effluents from the textile industry, which are highly charged with dyes.

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Facile synthesis of copper-substituted Prussian blue analog immobilized ion exchange resins for high-performance ammonium recovery from wastewater: Adsorption kinetics, isotherms, and regeneration

Cited by 21 publications

References 65 publications

From lab to field: Prussian blue frameworks as sustainable cathode materials

From lab to field: Prussian blue frameworks as sustainable cathode materials

Direct Electrooxidation of Ammonia-Enriched Wastewater Using a Bipolar Membrane-Integrated Electrolytic Cell

High biosorption of cationic dye onto a novel material based on paper mill sludge

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