Articles | Volume 13, issue 2
https://doi.org/10.5194/dwes-13-15-2020
https://doi.org/10.5194/dwes-13-15-2020
Research article
 | 
17 Jul 2020
Research article |  | 17 Jul 2020

Adsorption and desorption studies of Delonix regia pods and leaves: removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

Bolanle M. Babalola, Adegoke O. Babalola, Cecilia O. Akintayo, Olayide S. Lawal, Sunday F. Abimbade, Ekemena O. Oseghe, Lukman S. Akinola, and Olushola S. Ayanda

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (06 Apr 2020) by Luuk Rietveld
AR by Olushola Ayanda on behalf of the Authors (07 Apr 2020)  Author's response   Manuscript 
ED: Publish subject to minor revisions (review by editor) (06 May 2020) by Luuk Rietveld
AR by Olushola Ayanda on behalf of the Authors (06 May 2020)  Author's response   Manuscript 
ED: Publish as is (01 Jun 2020) by Luuk Rietveld
AR by Olushola Ayanda on behalf of the Authors (05 Jun 2020)  Manuscript 
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Short summary
Conventional methods for the removal of metal ions from water are expensive and inadequate. Hence, other cheaper and easier to handle methods are required. Consequently, the use of agricultural waste materials of no economic value is currently gaining wide acceptance. In this study, Delonix regia pods and leaves were ground, examined and used to remove nickel (II) and copper (II) ions from aqueous solutions. The results show that this agro-waste effectively removes these metals from solution.