Environmental sustainability and ions removal through electrodialysis desalination: Operating conditions and process parameters

Sedighi, Mehdi; Usefi, Mohammad Mahdi Behvand; Ismail, Ahmad Fauzi; Ghasemi, Mostafa

doi:10.1016/j.desal.2022.116319

Cited by 97 publications

(8 citation statements)

References 316 publications

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“…The weakly basic fixed groups of AEMs (primary and secondary amines) enter into specific interactions with proton-containing phosphoric acid anions. These interactions seem to be similar to those [ 15 , 26 , 27 , 28 , 29 , 30 , 39 , 40 , 41 , 42 , 43 , 44 ], which were already discussed in the Introduction. According to the electrostatic/hydrogen bond switching model, which describes such interactions [ 43 , 44 , 45 , 46 ], proton transfer reactions contribute to the formation of a “bound species” involving the proton-containing species of oxoacids and amino groups.…”

Section: Resultssupporting

confidence: 81%

“…Some of them [ 14 , 24 , 25 ] believe that steric hindrance is one of the main obstacles to the transport of multiply charged anions in conventional anion-exchange membranes (AEMs). Therefore, new generation AEMs were actively developed by many research teams [ 15 , 17 , 26 , 27 , 28 , 29 , 30 ] in recent years. Typically, these membranes have an ion exchange matrix that is less rigidly cross-linked compared to conventional membranes [ 17 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

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Phosphates Transfer in Pristine and Modified CJMA-2 Membrane during Electrodialysis Processing of NaxH(3−x)PO4 Solutions with pH from 4.5 to 9.9

et al. 2023

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Phosphate recovery from different second streams using electrodialysis (ED) is a promising step to a nutrients circular economy. However, the relatively low ED performance hinders the widespread adoption of this environmentally sound method. The formation of “bonded species” between phosphates and the weakly basic fixed groups (primary and secondary amines) of the anion exchange membrane can be the cause of decrease in current efficiency and increase in energy consumption. ED processing of NaxH(3−x)PO4 alkaline solutions and the use of intense current modes promote the formation of a bipolar junction from negatively charged bound species and positively charged fixed groups. This phenomenon causes a change in the shape of current–voltage curves, increase in resistance, and an enhancement in proton generation during long-term operation of anion-exchange membrane with weakly basic fixed groups. Shielding of primary and secondary amines with a modifier containing quaternary ammonium bases significantly improves ED performance in the recovery of phosphates from NaxH(3−x)PO4 solution with pH 4.5. Indeed, in the limiting and underlimiting current modes, 40% of phosphates are recovered 1.3 times faster, and energy consumption is reduced by 1.9 times in the case of the modified membrane compared to the pristine one. Studies were performed using a new commercial anion exchange membrane CJMA-2.

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Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Phosphates Transfer in Pristine and Modified CJMA-2 Membrane during Electrodialysis Processing of NaxH(3−x)PO4 Solutions with pH from 4.5 to 9.9

et al. 2023

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“…Sulfamic acid, also known as H2NSO3H, finds extensive use in various industrial sectors due to its diverse range of applications [1]. It is commonly employed for tasks such as mechanical cleaning and the elimination of deposits in various industrial processes [2]. Sulfamic acid in aqueous solutions does not produce corrosive fumes due to the presence of -NH2 and -OH functional groups [3].…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: The ability of Lupine plant extract to adhere to copper surfaces in sulphamic acid and prevent corrosion

Alatawi,

Keshk,

Alhawiti

et al. 2024

Preprint

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The application of lupine extract in a 2 M sulfamic acid (H2NSO3H) solution effectively prevented copper corrosion. Various techniques were employed to conduct these experiments, including mass loss ML, dynamic potential polarization PL, and electrochemical impedance EIS. Theoretical calculations, such as DFT, Fukui function, and Monte Carlo simulations, were also utilized. FT-IR spectroscopy was utilized to analyze the surface composition of Cu. The shape of the Cu surface was determined using advanced nanotechnology techniques, specifically scanning electron microscopy (SEM). The investigation focused on the impact of Lupine extract on Cu corrosion in sulfamic acid at a temperature of 250C. The inhibition rate of Cu corrosion was assessed using mass loss (ML) as the primary measurement method. After conducting a thorough analysis of its interaction with copper surfaces, it was determined that the substance exhibits chemical adsorption characteristics and adheres to the Langmuir isotherm model. Upon examining the PL curves, it becomes evident that the Lupine extract functions as a mixed-type inhibitor. The effectiveness of inhibition was observed to rise as the concentration of Lupine increased. Furthermore, the findings demonstrate that increased temperatures have a detrimental impact on the effectiveness of inhibition. The density functional theory (DFT) and Monte Carlo simulation (MC) were utilized to compare the experimental results with the theoretical calculations.

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“…Variations in pH can affect the effectiveness of ED, but the impact is less significant. [31] The pH determines the calco‐carbonic balance of water, its variation depends on the ionic strength, alkalinity and CO 2 concentration, according to the equation (3). [32] 3

…”

Section: Resultsmentioning

confidence: 99%

Evaluation Study of Ammonium Removal from Groundwater by Electrodialysis: Case Study of Real Groundwater from the City of Kenitra in Morocco

Hazra,

Ouzbair,

Maolida

et al. 2024

ChemistryOpen

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In this work, we investigated the feasibility of ammonium removal by electrodialysis (ED), a well‐known electro‐membrane process, based on the selective migration of anions and cations through anion exchange membranes (AEMs) and cation exchange membranes (CEMs). ED experiments are performed using a laboratory pilot. The ion exchange membranes (IEMs) pair used is AXE/CMX, AXE as an AEMs and CMX as a CEMs. The first tests are performed with real groundwater solutions from Kenitra city (Morocco), spiked with an initial concentration of 3 mg/L NH4Cl. The results gave a specific demineralization (SD) to NH4+ ions of 84.60 %; for a demineralization rate (DR) of 80 % and a time of 60 min. The multivariate principal component analysis (PCA) presents a total inertia of 99.23 %, the majority of the variables of which are positively correlated on the C1 axis with a variance of 95.5 % than that of C2 of 3.78 %. The quality of the diluted water determined by the Legrand‐Poirier method showed that the water was aggressive and that the addition of 4.54 mg/L Ca2+ was necessary to balance the water and make it fit for human consumption.

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Environmental sustainability and ions removal through electrodialysis desalination: Operating conditions and process parameters

Cited by 97 publications

References 316 publications

Phosphates Transfer in Pristine and Modified CJMA-2 Membrane during Electrodialysis Processing of NaxH(3−x)PO4 Solutions with pH from 4.5 to 9.9

Phosphates Transfer in Pristine and Modified CJMA-2 Membrane during Electrodialysis Processing of NaxH(3−x)PO4 Solutions with pH from 4.5 to 9.9

WITHDRAWN: The ability of Lupine plant extract to adhere to copper surfaces in sulphamic acid and prevent corrosion

Evaluation Study of Ammonium Removal from Groundwater by Electrodialysis: Case Study of Real Groundwater from the City of Kenitra in Morocco

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