Economical approach to nitrate removal via membrane capacitive deionization

Uzun, Halil İbrahim; Debik, Eyüp

doi:10.1016/j.seppur.2018.09.037

Cited by 46 publications

(22 citation statements)

References 38 publications

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“…126 The MCDI system used for comparison presented a nitrate over chloride selectivity (r) of E2 and a sulfate over chloride selectivity of E1.3, following the same trend of other studies in MCDI literature. 127 The selectivities of NO 3 À /Cl À and NO 3 À /SO 4 2À were enhanced to E3.7 and 1.3, respectively after replacing the AEM with the resin-coated electrode. A similar result was obtained by Kim and Choi (NO 3 À /Cl À E 3.2) using a nitrate-selective resin.…”

Section: Anion Selectivitymentioning

confidence: 94%

Recent advances in ion selectivity with capacitive deionization

Gamaethiralalage

Singh

Şahin

et al. 2021

Energy Environ. Sci.

281

128

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Section: Anion Selectivitymentioning

confidence: 94%

Recent advances in ion selectivity with capacitive deionization

Gamaethiralalage

Singh

Şahin

et al. 2021

Energy Environ. Sci.

281

128

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“…As a nitrate ion is negatively charged, the transport of nitrate can be augmented by an electric field, which has been employed in capacitive desalination devices. [26,27] An increase in electrode surface area and porosity will contribute to the uptake of nitrate in the catalyst layer.…”

Section: Kinetic Mechanisms Of Electrochemical Nitrate Reductionmentioning

confidence: 99%

Restoring the Nitrogen Cycle by Electrochemical Reduction of Nitrate: Progress and Prospects

et al. 2020

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The increasing amount of anthropogenic nitrogen has resulted in alarming levels of nitrate in bodies of water and caused a cascade of damage to the environment and human health. Electrochemical nitrate reduction is an efficient strategy ancillary to biological nitrogen cycle management, which utilizes electrons as green reductants and rebalances the N 2 cycle. In this review, the fundamental principles and implementation of electrochemical nitrate reduction are described to lay the foundation for the eventual large-scale application in the remediation of nitrate-laden wastewaters. Factors that influence the activity and selectivity of electrochemical nitrate reduction are also discussed. Moreover, electrolytic cell design and construction are discussed via a rational choice of critical components and assembly. Finally, a roadmap for the development of highly selective nitrate reduction catalysts is proposed. This review attempts to provide a practical strategy for electrochemical nitrogen cycle management and aims to stimulate future research for final implementation.

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“…Lead ion is seen as a long-standing environmental contaminant which is highly toxic and hazardous to the aquatic ecosystem and poses possible human health risk. Due to the harmful effect of lead on human health and environment, World Health Organization (WHO) has already imposed strict law on the maximum permissible concentration for lead in drinking water as 0.05 mg/L (Uzun and Debik 2019).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of lead(II) from aqueous solution using Africa elemi seed, mucuna shell and oyster shell as adsorbents and optimization using Box–Behnken design

et al. 2020

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The aim of this study was to model and optimize the adsorption of Pb(II) ions from an aqueous solution using Africa elemi seed, mucuna shell and oyster shell modified with orthophosphorous acid used as adsorbents. The influence of operational parameters such as adsorbent dosage, initial pH and contact time was evaluated by response surface methodology (RSM). The interactions between the operational parameters were evaluated using Box-Behnken design of response surface methodology. The optimum conditions for maximum removal of Pb(II) ions were observed at pH of 2.0, 100 mg adsorbent dosage and 70 min of contact time, with correlation coefficient R 2 , 0.996 for Africa elemi seed adsorbent; pH of 6.0, 100 mg adsorbent dosage and 40 min contact time with R 2 0.996 for mucuna shell adsorbent; and pH of 6.0, 100 mg adsorbent dosage and contact time of 40 min for oyster shell adsorbent. The ANOVA results obtained from the RSM were analyzed using secondorder polynomial equations, and the contour plots showed the interaction among the variables of the adsorption. This shows that the prepared low-cost adsorbents can be effectively adopted for the removal of Pb(II) ions from industrial wastewaters.

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Economical approach to nitrate removal via membrane capacitive deionization

Cited by 46 publications

References 38 publications

Recent advances in ion selectivity with capacitive deionization

Recent advances in ion selectivity with capacitive deionization

Restoring the Nitrogen Cycle by Electrochemical Reduction of Nitrate: Progress and Prospects

Adsorption of lead(II) from aqueous solution using Africa elemi seed, mucuna shell and oyster shell as adsorbents and optimization using Box–Behnken design

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