Electrochemical Recovery of N and P from Municipal Wastewater DOI Creative Commons
Panagiota D. Natsi, Petros G. Koutsoukos

Crystals, Journal Year: 2024, Volume and Issue: 14(8), P. 675 - 675

Published: July 24, 2024

Phosphorus, P, is a vital element of paramount importance for both humans and the Environment. Wastewater contains often relatively high concentrations P which can be recovered as crystalline struvite (MgNH4PO4·6H2O, MAP). This option quite attractive in assisting sustainable development because used slow-release fertilizer. Domestic wastewater usually nitrogen, N, but poor magnesium, Mg. It necessary to develop low-cost solutions enrichment with In present work, sacrificial magnesium anodes were used, dissolve upon anodic polarization, releasing sufficient selective precipitation MAP. The application constant current between two electrodes anode cylindrical rod (4 cm2 exposed surface area) other platinum cathode electrode, immersed ammonium phosphate solutions, without adjustment solution pH, was investigated. Constant density over range 10–100 A·m−2, Mg- Pt hydrogen exactly known initial concentration, applied using potentiostat. presence sodium chloride on bulk solution, Mg(OH)2 (brucite) formed passivation Mg electrode. dilute dissolution resulted precipitation, even at low (10 mA). Struvite crystals an average size 20 μm precipitated. behavior cell electrolyte Faradaic long coverage low. pH values (pH 11) eliminating need alkali addition.

Language: Английский

Creating an Alternative Governance for Phosphorus Circularity Through Framings That Strengthen Intersectoral Policy Coherence in the EU: Constraints and Implementation Possibilities DOI Open Access
Teodor Kalpakchiev, Brent Jacobs, Markus Fraundorfer

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(4), P. 1478 - 1478

Published: Feb. 11, 2025

Phosphorus’ availability and pricing is critical for the entire food system. Transformative phosphorus governance required to reduce European Union’s fertiliser vulnerability. At same time, EU’s approach constrained by multiple problem definitions missing salient framings that could make recovery a priority of decision-making agenda. The article addresses this policy gap gathering discussing different institutional stakeholder inform transition transformed governance. We combine triangulated methods (framing as an analytical heuristic, semi-structured expert interviews, document analysis, conference observations) with Kingdon’s three streams agenda-setting conceptual framework identify alternative intersectoral sustainability. Our findings suggest window opportunity filled Fertiliser Affordability Communication supports decarbonisation pathway fails emphasise potential emergent supporting recovery. analyse these new their elevation on agenda opening inauguration Commission. propose five alternatives apply powerful spillover implement synchronous commission’s sectoral priorities. believe extension current environmental along pathways can potentially contribute

Language: Английский

Citations

1
Enhancing phosphorus recovery from poultry litter ash through microwave-assisted thermochemical treatment for improving its solubility DOI Creative Commons
Ario Fahimi,

Mark S. Massa,

Elsayed Mousa

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 379, P. 124802 - 124802

Published: March 9, 2025

This study explores for the first time P recovery from poultry litter ash (PLA) using microwave-assisted thermochemical treatment, aiming to improve its bioavailability utilization as a fertilizer. PLA samples, originating laying hens' manure incineration, were subjected microwave treatment with addition of sodium bicarbonate, and their physical-chemical characteristics analyzed X-ray fluorescence (XRF), diffraction (XRD), scanning electron microscopy energy dispersive spectroscopy (SEM-EDS). The results indicate that led formation NaCaPO4 crystals, significant increase in solubility post-treatment, which is crucial plant uptake. Moreover, increasing amorphous content decrease because atoms tend diffuse within silica network. However, this case, interesting glass materials promising optical properties may be obtained. provides novel approach valorizing biowaste contributes sustainable phosphorus management practices.

Language: Английский

Citations

0
Stochastic Group Preference Analysis Framework for Interval Multiplicative Preference Relations DOI
Xin Jiang, Ligang Zhou, Hao Li

et al.

Group Decision and Negotiation, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Language: Английский

Citations

0
Advancements and feasibility of synergistic approaches in phosphorus recovery from wastewater: A critical review DOI Creative Commons
Parminder Kaur, Małgorzata Szlachta, Junhua Xu

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 386, P. 125786 - 125786

Published: May 12, 2025

Language: Английский

Citations

0
Electrochemical Recovery of N and P from Municipal Wastewater DOI Creative Commons
Panagiota D. Natsi, Petros G. Koutsoukos

Crystals, Journal Year: 2024, Volume and Issue: 14(8), P. 675 - 675

Published: July 24, 2024

Phosphorus, P, is a vital element of paramount importance for both humans and the Environment. Wastewater contains often relatively high concentrations P which can be recovered as crystalline struvite (MgNH4PO4·6H2O, MAP). This option quite attractive in assisting sustainable development because used slow-release fertilizer. Domestic wastewater usually nitrogen, N, but poor magnesium, Mg. It necessary to develop low-cost solutions enrichment with In present work, sacrificial magnesium anodes were used, dissolve upon anodic polarization, releasing sufficient selective precipitation MAP. The application constant current between two electrodes anode cylindrical rod (4 cm2 exposed surface area) other platinum cathode electrode, immersed ammonium phosphate solutions, without adjustment solution pH, was investigated. Constant density over range 10–100 A·m−2, Mg- Pt hydrogen exactly known initial concentration, applied using potentiostat. presence sodium chloride on bulk solution, Mg(OH)2 (brucite) formed passivation Mg electrode. dilute dissolution resulted precipitation, even at low (10 mA). Struvite crystals an average size 20 μm precipitated. behavior cell electrolyte Faradaic long coverage low. pH values (pH 11) eliminating need alkali addition.

Language: Английский

Citations

1