Regeneration and modelling of a phosphorous removal and recovery hybrid ion exchange resin after long term operation with municipal wastewater

Simple item page
dc.contributor.authorPinelli, Davide
dc.contributor.authorBovina, Sara
dc.contributor.authorRubertelli, Giorgia
dc.contributor.authorMartinelli, Andrea
dc.contributor.authorGuida, Samuela
dc.contributor.authorSoares, Ana
dc.contributor.authorFrascari, Dario
dc.date.accessioned2021-08-04T16:19:34Z
dc.date.available2021-08-04T16:19:34Z
dc.date.issued2021-07-16
dc.description.abstractAdsorption represents one of the most promising process for phosphorous (P) removal and recovery from municipal wastewater, but questions about its long-term stability remain. The goals of this work were (i) to assess changes in morphology and adsorption performances of hybrid anion exchanger (HAIX) LayneRT after 2.5 years of operation in a 10 m3 d−1 demonstration plant fed with secondary-treated municipal wastewater, (ii) to optimize the LayneRT regeneration procedure, and (iii) to evaluate the suitability of the ion exchange model to describe P adsorption on LayneRT. LayneRT is composed of hydrated ferric nanoparticles dispersed in a strong base anion exchange resin. Batch and continuous flow adsorption/desorption tests were conducted with the resin used for 2.5 years, regenerated with two alternative solutions: NaOH, reactivating mainly the iron nanoparticles active sites, and NaOH + NaCl, also regenerating the active sites of the ion exchange media. The physicochemical characterization by Scanning Electron Microscope indicated that regeneration by NaOH significantly reduced the deterioration of the resin surface, even after 59 adsorption/desorption cycles. Lab-scale continuous flow tests showed that the resin regenerated with either solution featured P adsorption performances very close to that of the virgin resin. The isotherm tests showed that P adsorption by LayneRT was effectively simulated with the ion exchange model. This study confirms that LayneRT is a durable, resistant and promising media for P recovery from wastewater.en_UK
dc.identifier.citationPinelli D, Bovina S, Rubertelli G, et al., (2022) Regeneration and modelling of a phosphorous removal and recovery hybrid ion exchange resin after long term operation with municipal wastewater. Chemosphere, Volume 286, Part 1, January 2022, Article number 131581en_UK
dc.identifier.issn0045-6535
dc.identifier.urihttps://doi.org/10.1016/j.chemosphere.2021.131581
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16974
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectIsothermIon exchange modelen_UK
dc.subjectMunicipal wastewateren_UK
dc.subjectHybrid anion exchangeren_UK
dc.subjectAdsorptionen_UK
dc.subjectPhosphorous recoveryen_UK
dc.titleRegeneration and modelling of a phosphorous removal and recovery hybrid ion exchange resin after long term operation with municipal wastewateren_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Regeneration_modelling_of_phosphorous_removal_and_recover_hybrid_ion-2021.pdf
Size:
1.54 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)