Modified cation-exchange membrane for phosphate recovery in an electrochemically assisted adsorption–desorption process

Petrov, Kostadin Veselinov; Paltrinieri, Laura; Półtorak, Łukasz; Smet, Louis C. P. M. de; Sudhölter, Ernst J. R.

doi:10.1039/c9cc09563b

Cited by 8 publications

(4 citation statements)

References 27 publications

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“…The use of IEMs coated with layers that selectively sorb phosphates is another promising direction for increasing the current efficiency in the recovery of phosphates. For example, Petrov et al [ 244 ] propose to use CEM modified with high surface area adsorbent with iron oxide nanoparticles (Fe 3 O 4 NPs) coated with polyhexamethylene guanidine. This polyelectrolyte enters into a selective interaction with phosphate [ 245 ].…”

Section: Innovations In Nutrient Recovery Processes With Ion-exchange...mentioning

confidence: 99%

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

2022

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The review describes the place of membrane methods in solving the problem of the recovery and re-use of biogenic elements (nutrients), primarily trivalent nitrogen NIII and pentavalent phosphorus PV, to provide the sustainable development of mankind. Methods for the recovery of NH4+ − NH3 and phosphates from natural sources and waste products of humans and animals, as well as industrial streams, are classified. Particular attention is paid to the possibilities of using membrane processes for the transition to a circular economy in the field of nutrients. The possibilities of different methods, already developed or under development, are evaluated, primarily those that use ion-exchange membranes. Electromembrane methods take a special place including capacitive deionization and electrodialysis applied for recovery, separation, concentration, and reagent-free pH shift of solutions. This review is distinguished by the fact that it summarizes not only the successes, but also the “bottlenecks” of ion-exchange membrane-based processes. Modern views on the mechanisms of NH4+ − NH3 and phosphate transport in ion-exchange membranes in the presence and in the absence of an electric field are discussed. The innovations to enhance the performance of electromembrane separation processes for phosphate and ammonium recovery are considered.

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Section: Innovations In Nutrient Recovery Processes With Ion-exchange...mentioning

confidence: 99%

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

2022

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“…The phenomena of the rejection and adsorption on the surfaces and interfaces of the self-assembled multilayers driven by electrostatic interaction are closely related to their applications such as ion adsorption, separation, and desalination. − For example, Armstrong et al reported that a 30 nm-sized pore structure modified by poly(styrene sulfonate)/protonated poly(allylamine) (PAH) multilayers showed Br – /SO 4 2– selectivity of 3.4 with a SO 4 2– rejection rate of 85%. This is due to the selective electrostatic rejection of the negatively charged pore and the divalent anions.…”

Section: Introductionmentioning

confidence: 99%

Construction of Self-Assembled Polyelectrolyte/Cationic Microgel Multilayers and Their Interaction with Anionic Dyes Using Quartz Crystal Microbalance and Atomic Force Microscopy

Zhang

Wang

et al. 2021

ACS Omega

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This study aimed to reveal the interaction between selfassembled multilayers and dye molecules in the environment, which is closely related to the multilayers' stable performance and service life. In this work, the pH-responsive poly (N-isopropylacrylamide-co-2-(dimethylamino) ethyl methacrylate) microgels were prepared by free-radical copolymerization and self-assembled with sodium alginate (SA) into multilayers by the layer-by-layer deposition method. Quartz crystal microbalance (QCM) and atomic force microscopy (AFM) results confirmed the construction of multilayers and the absorbed mass, resulting in a decrease in the frequency shift of the QCM sensor and the deposition of microgel particles on its surface. The interaction between the self-assembled SA/microgel multilayers and anionic dyes in the aqueous solution was further investigated by QCM, and it was found that the electrostatic attraction between dyes and microgels deposited on the QCM sensor surface was much larger than that of the microgels with SA in multilayers, leading to the release of the microgels from the self-assembled structure and a mass loss ratio of 27.6%. AFM observation of the multilayer morphology exposed to dyes showed that 29% of the microgels was peeled off, and the corresponding microgel imprints were generated on the surface. In contrast, the shape and size of the remaining self-assembled microgel particles did not change.

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“…Adsorptive membranes are an emerging class of materials with improved separation performance compared to conventional membranes (4,(10)(11)(12)(13)(14). However, limited tunability, capacities, and selectivities remain major challenges in their development (4).…”

mentioning

confidence: 99%

“…Adsorptive membranes are an emerging class of materials that have been shown to exhibit improved performance in numerous separations when compared with conventional membranes, including for water purification (4,(9)(10)(11)(12)(13). However, improvements are needed in the capacities, selectivities, and regenerabilities achievable with these materials to enable their wide-scale use, which is also currently hindered by the limited structural and chemical tunability of most adsorptive membranes (4).…”

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confidence: 99%

Ion-capture electrodialysis using multifunctional adsorptive membranes

Uliana

Bui

Kamcev

et al. 2021

Science

189

104

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Technologies that can efficiently purify nontraditional water sources are needed to meet rising global demand for clean water. Water treatment plants typically require a series of costly separation units to achieve desalination and the removal of toxic trace contaminants such as heavy metals and boron. We report a series of robust, selective, and tunable adsorptive membranes that feature porous aromatic framework nanoparticles embedded within ion exchange polymers and demonstrate their use in an efficient, one-step separation strategy termed ion-capture electrodialysis. This process uses electrodialysis configurations with adsorptive membranes to simultaneously desalinate complex water sources and capture diverse target solutes with negligible capture of competing ions. Our methods are applicable to the development of efficient and selective multifunctional separations that use adsorptive membranes.

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Modified cation-exchange membrane for phosphate recovery in an electrochemically assisted adsorption–desorption process

Abstract: A novel ion separation methodology using a cation-exchange membrane modified with iron oxide nanoparticles (Fe3O4 NPs) coated with polyhexamethylene guanidine (PHMG) is proposed.

Cited by 8 publications

References 27 publications

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

Construction of Self-Assembled Polyelectrolyte/Cationic Microgel Multilayers and Their Interaction with Anionic Dyes Using Quartz Crystal Microbalance and Atomic Force Microscopy

Ion-capture electrodialysis using multifunctional adsorptive membranes

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