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

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

doi:https://doi.org/10.5194/dwes-13-15-2020

Articles | Volume 13, issue 2

https://doi.org/10.5194/dwes-13-15-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/dwes-13-15-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 2

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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Final revised paper (published on 17 Jul 2020)
Preprint (discussion started on 18 Dec 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Referee comment', Anonymous Referee #1, 19 Mar 2020
- AC1: 'Response to the Interactive comments by Referee #1', Olushola Ayanda, 02 Apr 2020
RC2: 'Adsorption and Desorption studies of Delonix regiapods and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution Bolanle M. Babalola,', Anonymous Referee #2, 25 Mar 2020
- AC2: 'Response to the Interactive comments by Referee #2', Olushola Ayanda, 02 Apr 2020

Peer-review completion

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

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.