Ammonium sulfate production from wastewater and low-grade sulfuric acid using bipolar- and cation-exchange membranes

Guo, Hui; Yuan, Pengyi; Pavlović, Vladimir; Barber, John B.; Kim, Younggy

doi:10.1016/j.jclepro.2020.124888

Cited by 24 publications

(7 citation statements)

References 64 publications

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“…), which enter the electrostatic interactions with membrane fixed groups, made it possible to reduce fouling, increase current efficiency and reduce energy consumption by 14% as compared to those achieved in case of conventional ED ( Figure 26 b). Similar success was achieved by Guo et al [ 166 ], who used only CEMs in BMED.…”

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

confidence: 79%

“…Most often, the elementary unit of membrane stacks consists of two or three compartments ( Figure 11 ). Taking into account the reaction NH 4 + + OH − NH 3 ∙H 2 O, which occurs in an alkaline medium, bipolar membrane electrodialysis (BMED) is very attractive for the reagent-free conversion of ammonium to ammonia [ 6 , 166 , 167 , 169 , 183 , 184 ].…”

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

“…The replacement of cation-exchange end membranes with anion-exchange end membranes markedly reduced these losses. Meanwhile, Guo et al [ 166 ] showed that a small amount of ammonium ends up in the cathode compartment even when an anion-exchange end membrane is used. Thus, solving the problem of ammonium transport through monopolar AEMs or BPM anion-exchange layers is still an acute problem and requires additional research efforts.…”

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

confidence: 99%

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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...supporting

confidence: 79%

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

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

confidence: 99%

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

2022

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“…A BPM is an ion exchange membrane that consists of an AEM layer and a CEM layer. It dissociates water molecules into protons and hydroxide ions in the presence of a strong electrical field [ 47 , 48 , 49 , 50 ]. The production of concentrated acid and alkali solution by BPM integrated ED facilitates ammonia recovery by the generation of NH 3 •H 2 O when treating wastewater [ 51 , 52 ].…”

Section: Electrochemical Systems For Ammonia Recoverymentioning

confidence: 99%

The Application of Cation Exchange Membranes in Electrochemical Systems for Ammonia Recovery from Wastewater

Yang

Qin

2021

Membranes

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Electrochemical processes are considered promising technologies for ammonia recovery from wastewater. In electrochemical processes, cation exchange membrane (CEM), which is applied to separate compartments, plays a crucial role in the separation of ammonium nitrogen from wastewater. Here we provide a comprehensive review on the application of CEM in electrochemical systems for ammonia recovery from wastewater. Four kinds of electrochemical systems, including bioelectrochemical systems, electrochemical stripping, membrane electrosorption, and electrodialysis, are introduced. Then we discuss the role CEM plays in these processes for ammonia recovery from wastewater. In addition, we highlight the key performance metrics related to ammonia recovery and properties of CEM membrane. The limitations and key challenges of using CEM for ammonia recovery are also identified and discussed.

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“…While BMED stacks are built with AEMs, we only employed CEMs and BPMs, since anion separation is not of interest. [12] In previous studies, Li et al and Lv et al successfully recovered ammonium from synthetic ammonium chloride solution using BMED. [9][10] However, dewatering centrate has high levels of organics (487-800 mg-COD/L); [6] as a result, the organics can potentially cause serious membrane fouling and decrease separation efficiency as well as membrane lifetime.…”

Section: Introductionmentioning

confidence: 99%

Ammonia separation from wastewater using bipolar membrane electrodialysis

Mohammadi

Guo

Yuan

et al. 2021

Electrochemical Science Adv

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Nitrogen pollution is a serious environmental challenge in natural water and thus selective ammonia separation in wastewater treatment is of great importance to decrease the nitrogen load to natural water systems. BipolarThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Ammonium sulfate production from wastewater and low-grade sulfuric acid using bipolar- and cation-exchange membranes

Cited by 24 publications

References 64 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

The Application of Cation Exchange Membranes in Electrochemical Systems for Ammonia Recovery from Wastewater

Ammonia separation from wastewater using bipolar membrane electrodialysis

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