Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca
The present study aimed to evaluate the efficiency of marine algae for removal of metals from the aqueous solution. The green alga, Ulva lactuca, collected from the intertidal zone of the Suez Bay, northern part of the Red Sea was used to reduce cadmium levels from the aqueous solutions. The biosorp...
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| Format: | Article |
| Language: | English |
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Elsevier
2014-01-01
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| Series: | Egyptian Journal of Aquatic Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1687428514000739 |
| _version_ | 1823926060011487232 |
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| author | Mohamed M. Ghoneim Hanaa S. El-Desoky Khalid M. El-Moselhy Adel Amer Emad H. Abou El-Naga Lamiaa I. Mohamedein Ahmed E. Al-Prol |
| author_facet | Mohamed M. Ghoneim Hanaa S. El-Desoky Khalid M. El-Moselhy Adel Amer Emad H. Abou El-Naga Lamiaa I. Mohamedein Ahmed E. Al-Prol |
| author_sort | Mohamed M. Ghoneim |
| collection | DOAJ |
| description | The present study aimed to evaluate the efficiency of marine algae for removal of metals from the aqueous solution. The green alga, Ulva lactuca, collected from the intertidal zone of the Suez Bay, northern part of the Red Sea was used to reduce cadmium levels from the aqueous solutions. The biosorption mechanisms of Cd2+ ions onto the algal tissues were examined using various analytical techniques: Fourier-transform infrared spectroscopy (FT-IR) and Scanning electron microscopy (SEM). Results indicated that at the optimum pH value of 5.5; about 0.1 g of U. lactuca was enough to remove 99.2% of 10 mg L−1 Cd2+ at 30 °C in the aqueous solutions. The equilibrium data were well fitted with the Langmuir and Freundlich isotherms. The monolayer adsorption capacity was 29.1 mg g−1. The calculated RL and ‘n’ values have proved the favorability of cadmium adsorption onto U. lactuca. The desorption test revealed that HCl was the best for the elution of metals from the tested alga. In conclusion, the seaweed U. lactuca was the favorable alternative of cadmium removal from water. |
| first_indexed | 2024-12-16T20:18:30Z |
| format | Article |
| id | doaj.art-cff592c5c2b849ebb60793870e56a37e |
| institution | Directory Open Access Journal |
| issn | 1687-4285 |
| language | English |
| last_indexed | 2024-12-16T20:18:30Z |
| publishDate | 2014-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Egyptian Journal of Aquatic Research |
| spelling | doaj.art-cff592c5c2b849ebb60793870e56a37e2022-12-21T22:17:51ZengElsevierEgyptian Journal of Aquatic Research1687-42852014-01-0140323524210.1016/j.ejar.2014.08.005Removal of cadmium from aqueous solution using marine green algae, Ulva lactucaMohamed M. Ghoneim0Hanaa S. El-Desoky1Khalid M. El-Moselhy2Adel Amer3Emad H. Abou El-Naga4Lamiaa I. Mohamedein5Ahmed E. Al-Prol6Chemistry Department, Faculty of Science, Tanta University, 31527 Tanta, EgyptChemistry Department, Faculty of Science, Tanta University, 31527 Tanta, EgyptNational Institute of Oceanography and Fisheries, Suez Branch, 182, Suez, EgyptNational Institute of Oceanography and Fisheries, Suez Branch, 182, Suez, EgyptNational Institute of Oceanography and Fisheries, Suez Branch, 182, Suez, EgyptNational Institute of Oceanography and Fisheries, Suez Branch, 182, Suez, EgyptNational Institute of Oceanography and Fisheries, Suez Branch, 182, Suez, EgyptThe present study aimed to evaluate the efficiency of marine algae for removal of metals from the aqueous solution. The green alga, Ulva lactuca, collected from the intertidal zone of the Suez Bay, northern part of the Red Sea was used to reduce cadmium levels from the aqueous solutions. The biosorption mechanisms of Cd2+ ions onto the algal tissues were examined using various analytical techniques: Fourier-transform infrared spectroscopy (FT-IR) and Scanning electron microscopy (SEM). Results indicated that at the optimum pH value of 5.5; about 0.1 g of U. lactuca was enough to remove 99.2% of 10 mg L−1 Cd2+ at 30 °C in the aqueous solutions. The equilibrium data were well fitted with the Langmuir and Freundlich isotherms. The monolayer adsorption capacity was 29.1 mg g−1. The calculated RL and ‘n’ values have proved the favorability of cadmium adsorption onto U. lactuca. The desorption test revealed that HCl was the best for the elution of metals from the tested alga. In conclusion, the seaweed U. lactuca was the favorable alternative of cadmium removal from water.http://www.sciencedirect.com/science/article/pii/S1687428514000739Ulva lactucaMarine algaeBiosorptionCadmiumIsotherm models |
| spellingShingle | Mohamed M. Ghoneim Hanaa S. El-Desoky Khalid M. El-Moselhy Adel Amer Emad H. Abou El-Naga Lamiaa I. Mohamedein Ahmed E. Al-Prol Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca Egyptian Journal of Aquatic Research Ulva lactuca Marine algae Biosorption Cadmium Isotherm models |
| title | Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca |
| title_full | Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca |
| title_fullStr | Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca |
| title_full_unstemmed | Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca |
| title_short | Removal of cadmium from aqueous solution using marine green algae, Ulva lactuca |
| title_sort | removal of cadmium from aqueous solution using marine green algae ulva lactuca |
| topic | Ulva lactuca Marine algae Biosorption Cadmium Isotherm models |
| url | http://www.sciencedirect.com/science/article/pii/S1687428514000739 |
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