Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash
Eichhornia crassipes ash was used for the removal of Pb(II) and Zn(II) ions from mono and binary systems. Batch equilibrium studies were carried out under optimum conditions and the results were analysed by the Langmuir and Freundlich adsorption isotherms for single metal systems and by Langmuir co...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | https://www.researchgate.net/publication/290161898 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1779905333189148672 |
|---|---|
| author | Nharingo, Tichaona Ngwenya, Jacob, T. |
| author_facet | Nharingo, Tichaona Ngwenya, Jacob, T. |
| author_sort | Nharingo, Tichaona |
| collection | DSpace |
| description | Eichhornia crassipes ash was used for the removal of Pb(II) and Zn(II) ions from mono and binary systems.
Batch equilibrium studies were carried out under optimum conditions and the results were analysed by the Langmuir and Freundlich adsorption isotherms for single metal systems and by Langmuir competitive model for binary metal systems. The equilibrium data fitted well to both mono sorption isotherm models with R2 ≥ 0.99. The ash had greater affinity for Pb(II) ions (qm = 50 mg g-1 and n = 1.05) than Zn(II) ions (qm = 16.67 mg g-1 and n = 1.04) in mono sorption systems. There existed competition between Pb(II) and Zn(II) ions during their simultaneous removal by the ash (R2 ≥ 0.97). The ash showed preference for Pb (II) ion sorption (qm* = 50 mg g-1 and qm*/qm = 1) than Zn(II) ions (qm* = -2.94 mg g-1 and qm*/ qm = -1.53) that was attributed to physicochemical properties of the cations. Pb (II) and Zn (II) ions can be significantly
sorbed onto Eichhornia crassipes ash from single metal systems. However, in multi-metal systems, the removal of Zn (II) ions is inhibited by Pb (II)ions, while Pb(II) ions removal is not affected by the presence of Zn(II) ions. |
| format | Article |
| id | ir-11408-998 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ir-11408-9982022-06-27T13:49:06Z Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash Nharingo, Tichaona Ngwenya, Jacob, T. Mono sorption, binary sorption, water hyacinth ash, lead and zinc. Eichhornia crassipes ash was used for the removal of Pb(II) and Zn(II) ions from mono and binary systems. Batch equilibrium studies were carried out under optimum conditions and the results were analysed by the Langmuir and Freundlich adsorption isotherms for single metal systems and by Langmuir competitive model for binary metal systems. The equilibrium data fitted well to both mono sorption isotherm models with R2 ≥ 0.99. The ash had greater affinity for Pb(II) ions (qm = 50 mg g-1 and n = 1.05) than Zn(II) ions (qm = 16.67 mg g-1 and n = 1.04) in mono sorption systems. There existed competition between Pb(II) and Zn(II) ions during their simultaneous removal by the ash (R2 ≥ 0.97). The ash showed preference for Pb (II) ion sorption (qm* = 50 mg g-1 and qm*/qm = 1) than Zn(II) ions (qm* = -2.94 mg g-1 and qm*/ qm = -1.53) that was attributed to physicochemical properties of the cations. Pb (II) and Zn (II) ions can be significantly sorbed onto Eichhornia crassipes ash from single metal systems. However, in multi-metal systems, the removal of Zn (II) ions is inhibited by Pb (II)ions, while Pb(II) ions removal is not affected by the presence of Zn(II) ions. 2016-04-24T15:19:50Z 2016-04-24T15:19:50Z 2013 Article 2319-5967 https://www.researchgate.net/publication/290161898 en International Journal of Engineering Science and Innovative Technology;Vol. 2, Issue 4; p.419-426 open |
| spellingShingle | Mono sorption, binary sorption, water hyacinth ash, lead and zinc. Nharingo, Tichaona Ngwenya, Jacob, T. Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash |
| title | Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash |
| title_full | Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash |
| title_fullStr | Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash |
| title_full_unstemmed | Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash |
| title_short | Single and Binary sorption of lead(II) and zinc(II) ions onto Eichhornia Crassipes (water hyacinth) ash |
| title_sort | single and binary sorption of lead(ii) and zinc(ii) ions onto eichhornia crassipes (water hyacinth) ash |
| topic | Mono sorption, binary sorption, water hyacinth ash, lead and zinc. |
| url | https://www.researchgate.net/publication/290161898 |
| work_keys_str_mv | AT nharingotichaona singleandbinarysorptionofleadiiandzinciiionsontoeichhorniacrassipeswaterhyacinthash AT ngwenyajacobt singleandbinarysorptionofleadiiandzinciiionsontoeichhorniacrassipeswaterhyacinthash |