Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass
The kinetics and equilibrium binding of Cd(II) ions onto raw water hyacinth (Eichhornia crassipes) biomass (RBH) were investigated with the view to utilize it as a low-cost biosorbent for removal of toxic metal ions from water. The biosorption was analyzed through batch experiments with respect to t...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2014-05-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_2_3613_Murithi_Cadmium_Ions |
| _version_ | 1819236713415835648 |
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| author | Genson Murithi Charles O. Onindo Enos Wamalwa Wambu Gerald K. Muthakia |
| author_facet | Genson Murithi Charles O. Onindo Enos Wamalwa Wambu Gerald K. Muthakia |
| author_sort | Genson Murithi |
| collection | DOAJ |
| description | The kinetics and equilibrium binding of Cd(II) ions onto raw water hyacinth (Eichhornia crassipes) biomass (RBH) were investigated with the view to utilize it as a low-cost biosorbent for removal of toxic metal ions from water. The biosorption was analyzed through batch experiments with respect to the effect of contact time, agitation speed, biosorbent dosage, solution pH, Cd(II) concentration, and the presence of other metal ions. Cadmium adsorption onto Eichhornia crassipes biomass was pH- and temperature-dependent, and complete Cd(II) removal from solution was achieved at all Cd(II) concentrations up to 10 mg/L. The biosorption equilibrium was described by Langmuir and Freundlich isotherms, and the RBH Cd(II) uptake capacity was 104 mg/g. The biosorption process followed the pseudo-second-order model (R2 0.99). The root biomass of water hyacinth had one of the highest Cd(II) sequestration efficiencies when compared to other biosorbents that have been used to remove Cd(II) from water. |
| first_indexed | 2024-12-23T13:08:49Z |
| format | Article |
| id | doaj.art-61e981211d38446ebe7a137a7b84760d |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-23T13:08:49Z |
| publishDate | 2014-05-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-61e981211d38446ebe7a137a7b84760d2022-12-21T17:45:48ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-05-01923613363110.15376/biores.9.2.3613-3631Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) BiomassGenson Murithi0Charles O. Onindo1Enos Wamalwa Wambu2Gerald K. Muthakia3Department of Chemistry, Kenyatta University, P.O. Box 43844 -00100, Nairobi, KenyaDepartment of Chemistry, Kenyatta University, P.O. Box 43844 -00100, Nairobi, KenyaDepartment of Chemistry, Jaramogi Oginga Odinga University of Science and TechnologyDepartment of Chemistry, Kimathi University Science and Technology, P.O. Box 657-10100, Nyeri, KenyaThe kinetics and equilibrium binding of Cd(II) ions onto raw water hyacinth (Eichhornia crassipes) biomass (RBH) were investigated with the view to utilize it as a low-cost biosorbent for removal of toxic metal ions from water. The biosorption was analyzed through batch experiments with respect to the effect of contact time, agitation speed, biosorbent dosage, solution pH, Cd(II) concentration, and the presence of other metal ions. Cadmium adsorption onto Eichhornia crassipes biomass was pH- and temperature-dependent, and complete Cd(II) removal from solution was achieved at all Cd(II) concentrations up to 10 mg/L. The biosorption equilibrium was described by Langmuir and Freundlich isotherms, and the RBH Cd(II) uptake capacity was 104 mg/g. The biosorption process followed the pseudo-second-order model (R2 0.99). The root biomass of water hyacinth had one of the highest Cd(II) sequestration efficiencies when compared to other biosorbents that have been used to remove Cd(II) from water.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_2_3613_Murithi_Cadmium_IonsBiosorptionCadmium(II)IsothermsKineticsWater hyacinth (Eichhornia crassipes) |
| spellingShingle | Genson Murithi Charles O. Onindo Enos Wamalwa Wambu Gerald K. Muthakia Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass BioResources Biosorption Cadmium(II) Isotherms Kinetics Water hyacinth (Eichhornia crassipes) |
| title | Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass |
| title_full | Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass |
| title_fullStr | Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass |
| title_full_unstemmed | Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass |
| title_short | Removal of Cadmium(II) Ions from Water by Adsorption using Water Hyacinth (Eichhornia crassipes) Biomass |
| title_sort | removal of cadmium ii ions from water by adsorption using water hyacinth eichhornia crassipes biomass |
| topic | Biosorption Cadmium(II) Isotherms Kinetics Water hyacinth (Eichhornia crassipes) |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_2_3613_Murithi_Cadmium_Ions |
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