Development and optimization of a bioelectrochemical system for ammonium recovery from wastewater as fertilizer

Losantos, Diana; Aliaguilla, Martí; Molognoni, Daniele; González, M.A. Camacho; Bosch‐Jimenez, Pau; Sanchis, S.; Guisasola, Albert; Borràs, Eduard

doi:10.1016/j.clet.2021.100142

Cited by 15 publications

(7 citation statements)

References 28 publications

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“…The BES working with synthetic wastewater recovered 45.3% of the initial nitrogen at a current density of 2.5 A m −2 . When using real blackwater as the anolyte, the BES achieved a poor performance due to its low content of organic matter and nitrogen [ 32 ]. Energy consumption for gas stripping can be also avoided by a passive separation method, facing the cathode directly to the gas phase.…”

Section: Nitrogen Recovery Using Membranes In Bessmentioning

confidence: 99%

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

2023

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Bioelectrochemical systems (BESs) have emerged as a technology that is able to recover resources from different kinds of substrates, especially wastewater. Nutrient recovery, mostly based on membrane reactor configuration, is a clear niche for BES application. The recovery of nitrogen or phosphorus allows for treatment of wastewater while simultaneously collecting a concentrated stream with nutrients that can be reintroduced into the system, becoming a circular economy solution. The aim of this study is to review recent advances in membrane-based BESs for nitrogen and phosphorus recovery and compare the recovery efficiencies and energy requirements of each system. Finally, there is a discussion of the main issues that arise from using membrane-based BESs. The results presented in this review show that it would be beneficial to intensify research on BESs to improve recovery efficiencies at the lowest construction cost in order to take the final step towards scaling up and commercialising this technology.

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Section: Nitrogen Recovery Using Membranes In Bessmentioning

confidence: 99%

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

2023

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“…N recovery methods are not widely applied yet, although there are technologies available for N-stripping from digestate (e.g., Baldi et al 2018 [15]). However, in most cases, the stripping of N is done only at higher concentrations and from solutions that are relatively clean, like UASB effluent [16]. Producing blackwater with higher COD, N and P concentrations is beneficial for all anaerobic treatment and subsequent post treatment for recovery [17].…”

Section: Opportunities For Increased Resource Recovery From Toilet Wastewatermentioning

confidence: 99%

Practical Performance and User Experience of Novel DUAL-Flush Vacuum Toilets

Todt¹,

Bisschops²,

Chatzopoulos³

et al. 2021

Water

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Vacuum toilets have gained increasing attention in circular urban development projects, because of their marked water saving qualities compared to conventional flush toilets and the increased resource recovery potential for energy in the form of biogas and phosphorous as, e.g., struvite from the resulting concentrated wastewater. A further reduction of the flushing volume of vacuum toilets would also bring nitrogen recovery options in reach. In the framework of the EU Horizon 2020 project Run4Life, a novel dual-flush vacuum toilet was developed and tested at two sites and combined with an analysis of the flushing patterns and a qualitative user survey. The results show that a 25–50% lower flushing water consumption and accordingly 1.5–2 times higher nutrient concentrations are achievable with this novel type of vacuum toilet. The usage frequency of the dual flush feature was higher in residential homes than in an office building, which also had urinals installed at the men toilets. A notable fraction of toilet visits in which the toilet was flushed twice as well as user feedback on dissatisfactory cleaning effects suggest that the applied reduction in water use is most likely the upper limit of what can be achieved in this type of toilet.

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“…For example, Xia et al [19] used ED to improve the efficiency of hydrogen production from wastewater by hydrogen‐producing bacteria through ammonium removal. In addition, unlike other processes, ED enables the concentrate stream to be reused as fertilizer for plant fertigation, with the aim of achieving zero liquid discharge (ZLD) to promote the circular economy and sustainable development [20] . However, research on ED has primarily concentrated on the removal of contaminants from wastewater, with limited exploration of real groundwater treatment, partly due to the complex chemistry of water [13] .…”

Section: Introductionmentioning

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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Development and optimization of a bioelectrochemical system for ammonium recovery from wastewater as fertilizer

Cited by 15 publications

References 28 publications

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

Practical Performance and User Experience of Novel DUAL-Flush Vacuum Toilets

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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