Ammonia recovery from anaerobic digester centrate using onsite pilot scale bipolar membrane electrodialysis coupled to membrane stripping

Ferrari, Federico; Pijuan, Maite; Molenaar, Sam; Duinslaeger, Nick; Sleutels, Tom; Kuntke, Philipp; Radjenović, Jelena

doi:10.1016/j.watres.2022.118504

Cited by 38 publications

(23 citation statements)

References 56 publications

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“…Recent literature has suggested that Donnan dialysis can be economically competitive with existing technologies. For example, Donnan dialysis achieved higher ammonia recovery and lower energy consumption than electrodialysis in a 150-L pilot-scale system for treatment of anaerobic digester centrate . The performance of the ligand-enabled Donnan dialysis can also be improved through optimization of several parameters in future efforts .…”

Section: Resultsmentioning

confidence: 99%

“…For example, Donnan dialysis achieved higher ammonia recovery and lower energy consumption than electrodialysis in a 150-L pilot-scale system for treatment of anaerobic digester centrate. 51 The performance of the ligandenabled Donnan dialysis can also be improved through optimization of several parameters in future efforts. 23 According to eqs 1 and 2, a higher draw solution concentration would increase the overall P(V) recovery.…”

Section: Selective P(v) Recovery From Alum-based Sludge By Ligand-ena...mentioning

confidence: 99%

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Ligand-Enabled Donnan Dialysis for Phosphorus Recovery from Alum-Laden Waste Activated Sludge

Shashvatt

Amurrio

Blaney

2022

Environ. Sci. Technol.

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While many nutrient recovery technologies target liquid waste streams, new strategies are required for effective phosphorus recovery from solid waste. This study reports an innovative ligand-enabled Donnan dialysis process to recover orthophosphate (P(V)) from alum-laden waste activated sludge (WAS). Four ligands, namely acetate, citrate, ethylenediaminetetraacetate (EDTA), and oxalate, were evaluated for P(V) release from a synthetic sludge containing 5 mM P(V) and 25 mM Al(III) and a real, alum-laden WAS with similar contents. Citrate and EDTA released more than 95% of P(V) at doses of 30 mM, outperforming acetate and oxalate. The ligand-based solubilization strategy was coupled with Donnan dialysis to recover P(V) into a clean sodium chloride draw solution. After Donnan dialysis with the synthetic sludge, the P(V) recovery's order was as follows: EDTA (54.4%) > citrate (41.7%) > oxalate (4.3%). The P(V) recovery efficiencies were slightly lower for Donnan dialysis with real, alum-laden WAS, namely 45.1% and 25.2% for EDTA and citrate addition, respectively, due to competitive effects exerted by other dissolved species. These promising results successfully demonstrated the proof-of-concept for ligand-enabled Donnan dialysis.

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Section: Resultsmentioning

confidence: 99%

Section: Selective P(v) Recovery From Alum-based Sludge By Ligand-ena...mentioning

confidence: 99%

Ligand-Enabled Donnan Dialysis for Phosphorus Recovery from Alum-Laden Waste Activated Sludge

Shashvatt

Amurrio

Blaney

2022

Environ. Sci. Technol.

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“…The potential application of EDBM for NH4 + removal has been studied at the lab scale with synthetic waters [15,16] and the pilot scale with digester supernatant [17]. Transmembrane chemisorption (TMCS) is used to remove gas compounds from an aqueous stream by using a hydrophobic membrane.…”

Section: Electrodialysis With Bipolar Membranes (Edbm)mentioning

confidence: 99%

Ammonium recovery from residual aqueous streams

Mubita

Appelman

Dijk³

et al. 2023

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This report contains the main findings of studies carried out by different partners in the context of the TKI project: Valorization of Biomass (Biovalor). The studies were focused on evaluating and testing state-of-theart technologies for ammonium (NH4 + ) removal and recovery from different streams: organic residual flows and industrial wastewater. These streams consisted of digester supernatants, i.e., the liquid fraction of digestates, with and without pretreatment, produced at Attero, Loonwerkersbedrijf, van Amstel, Groot Zevert, and Cosun Beet Company.One of the evaluated technologies was transmembrane chemisorption (TMCS), which is used for the recovery of NH4 + in the form of high-purity ammonium salts, e.g., (NH4)2SO4. During TMCS ammonia (NH3) is stripped from the feed stream and recovered in an acid solution as fertilizer. The complexity of the digestates' matrix-the presence of organic compounds and dissolved salts, among other compounds-in which NH3 is dissolved greatly influences the recovery efficiency of the TMCS process. Therefore, often pretreatment processes are required to efficiently recover NH4 + .The application of pressure and electrically driven technologies as pretreatment for TMCS were evaluated.Electrocoagulation was evaluated to improve the quality of digester supernatants by removing COD before membrane filtration processes. Additionally, microfiltration, high-pressure nanofiltration, conventional electrodialysis, and electrodialysis with bipolar membranes were evaluated for the removal of NH4 + .

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“…[212] This osmotic energy can be integrated into the organic redox flow battery. [213] We also employ these materials as components of bipolar membranes, and their application in bipolar membrane electrodialysis may recover ammonia, [214] one of the resources for fuel cells, and dissociate water into H + and OH − . [215,216] We are evaluating the performance of our developed AEMs in some of these devices and will reoptimize the structures according to feedback.…”

Section: Alkaline-resistant Aems For Energy and Carbon Neutralitymentioning

confidence: 99%

Ion Exchange Membranes: Constructing and Tuning Ion Transport Channels

Zuo

Zhu

et al. 2022

Adv Funct Materials

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Ion exchange membranes (IEMs) that can selectively transport ions are crucial to a variety of applications, such as ion extraction/separation, fuel cells, redox flow batteries, and water electrolysis. IEM performance, in terms of membrane permeability/conductivity and selectivity, relies heavily on the formation of effective ion transport channels within the membranes, and there exists a tradeoff between permeability/conductivity and selectivity, which obstructs the development and widespread adoption of IEM-based processes. To overcome this tradeoff and to advance IEM-related applications, extensive research efforts are devoted to the construction and tuning of ion transport channels, and various strategies are proposed. These strategies mainly include 1) inducing microphase separation by properly regulating the polymer architecture, 2) introducing a third phase/region for ion transfer, 3) realizing a high free volume with polyrotaxanes or polymers with sterically bulky groups, and 4) constructing ion transport channels with nanoporous materials. These strategies are outlined and summarized in this review. Perspectives and future research directions are also discussed.

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Ammonia recovery from anaerobic digester centrate using onsite pilot scale bipolar membrane electrodialysis coupled to membrane stripping

Cited by 38 publications

References 56 publications

Ligand-Enabled Donnan Dialysis for Phosphorus Recovery from Alum-Laden Waste Activated Sludge

Ligand-Enabled Donnan Dialysis for Phosphorus Recovery from Alum-Laden Waste Activated Sludge

Ammonium recovery from residual aqueous streams

Ion Exchange Membranes: Constructing and Tuning Ion Transport Channels

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