Abd Ali, ZT, Naji, LA, Almuktar, SAAAN, Faisal, AAH, Abed, SN, Scholz, M 
ORCID: https://orcid.org/0000-0001-8919-3838, Naushad, M and Ahamad, T
2020,
'Predominant mechanisms for the removal of nickel metal ion from aqueous solution using cement kiln dust'
, Journal of Water Process Engineering, 33
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Abstract
The experimental methodology achieved in the present study signified that the adsorption and precipitation were mainly mechanisms occurred together in the removal of nickel from aqueous solutions by sorption using cement kiln dust (CKD) byproduct as sorbent. Finding the contribution of each mechanism in the removal process and derivation an analytical model for finding the portion of precipitation were the focal points of this work. Results proved that the pure precipitation was increased with the increase of CKD dosage and metal concentration where total removal (adsorption-precipitation) ranged from 45 to 100%. The SEM micrographs of the CKD sorbent before and after sorption process certified that there was a crystal precipitates on the surface of the CKD. Also, these graphs in combination with FT-IR tests proved that [Ni(OH2)n]+2 (n=4-6) species were bonded with CKD and insoluble hydroxide species may be precipitated onto the CaO surfaces by co-precipitation, while K-O, Si-O and Ca-O groups enhanced the adsorption mechanism.
| Item Type: | Article |
|---|---|
| Schools: | Schools > School of Computing, Science and Engineering |
| Journal or Publication Title: | Journal of Water Process Engineering |
| ISSN: | 2214-7144 |
| Related URLs: | |
| Funders: | Researchers Supporting Project, King Saud University, Riyadh, Saudi Arabia |
| Depositing User: | USIR Admin |
| Date Deposited: | 13 Nov 2019 08:54 |
| Last Modified: | 16 Feb 2022 03:12 |
| URI: | http://usir.salford.ac.uk/id/eprint/53022 |
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