| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kirkelund, Gunvor Marie
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Mapping circular economy practices for steel, cement, glass, brick, insulation, and wood – A review for climate mitigation modelingcitations
- 2022Influence of ash type and mixing methods on workability and compressive strength when using Greenlandic MSWI fly ash as cement replacement in mortar
- 2022Effects of Chlorides and Sulphates on Heavy Metal Leaching from Mortar with Raw and Electrodialytically Treated MSWI Fly Ashcitations
- 2021Impact of electrodialytic remediation of MSWI fly ash on hydration and mechanical properties of blends with Portland cementcitations
- 2020Screening of untreated municipal solid waste incineration fly ash for use in cement-based materials: chemical and physical propertiescitations
- 2019Characterization of sewage sludge ash and its effect on moisture physics of mortarcitations
- 2019Electrodialytically treated MSWI fly ash use in clay bricks
- 2019Screening Untreated Municipal Solid Waste Incineration Fly Ash for Use in Cement-Based Materials – Chemical and Physical Properties
- 2018Using polycarbobetaines for cu recovery from catholytes generated by electrodialytic treatment of sewage sludge ash
- 2017Colour, compressive strength and workability of mortars with an iron rich sewage sludge ashcitations
- 2016Wood ash used as partly sand and/or cement replacement in mortarcitations
- 2016Replacement of 5% of OPC by fly ash and APC residues from MSWI with electrodialytic pre-treatment
- 2015Ammonium citrate as enhancement for electrodialytic soil remediation and investigation of soil solution during the processcitations
- 2015Multivariate methods for evaluating the efficiency of electrodialytic removal of heavy metals from polluted harbour sedimentscitations
- 2014Electrodialytically treated MSWI APC residue as substitute for cement in mortar
- 2014The Aesthetical quality of SSA-containing mortar and concrete
- 2013Effect of pulse current on acidification and removal of Cu, Cd, and As during suspended electrodialytic soil remediationcitations
- 2012Electrodialytic remediation of suspended soil – Comparison of two different soil fractionscitations
- 2012Testing the possibility for reusing mswi bottom ash in Greenlandic road construction
- 2012Characterisation of MSWI bottom ash for potential use as subbase in Greenlandic road construction
- 2009Electrodialytic remediation of harbour sediment in suspension - Evaluation of effects induced by changes in stirring velocity and current density on heavy metal removal and pHcitations
- 2007Electrodialytic extraction of Cd and Cu from sediment from Sisimiut Harbour, Greenlandcitations
- 2005Acidification of Harbour sediment and removal of heavy metals induced by water splitting in electrodialytic remediation.citations
Places of action
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article
Effect of pulse current on acidification and removal of Cu, Cd, and As during suspended electrodialytic soil remediation
Abstract
<p>The effect of pulse current on the acidification process and the removal of heavy metals during suspended electrodialytic soil remediation were investigated in this work. Eight experiments with constant and pulse current in two polluted soils were conducted using a 3-compartment membrane cell, predominately working under overlimiting current density conditions. Soil 1 was sampled from a pile of excavated soil at a site with mixed industrial pollution (Cu and Cd), and soil 2 was sampled from the top layer of a wood preservation site (Cu and As). Results showed that pulse current improved the acidification by supplying more reactive H<sup>+ </sup>ions (defined as the H<sup>+</sup> ions causing release of heavy metals from soil particles). The molar ratio of reactive H<sup>+</sup> ions to total produced H<sup>+</sup> ions (<em>R</em><sub>H+</sub>/<em>P</em><sub>H+</sub>) was higher in every pulse current experiment than in the corresponding constant current experiment. In addition the removal efficiencies of heavy metals were also improved. The carbonate buffering system in a soil is the first mechanism reacting with the produced H<sup>+</sup> ions and impeding the heavy metal mobilization. It was found that the effect of improvement on both the acidification process and the removal of heavy metals were more significant in the soil with highest buffering capacity than the soil with low. Energy distribution analysis demonstrated that most energy was consumed by the transport of ionic species through the soil suspension, and then followed by membranes and electrolytes. The pulse current decreased the energy consumption to different extent depending on the pulse frequency. The lowest energy consumption was obtained in the experiment with the highest pulse frequency (96 cycles per day) for both soils.</p>