Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms
Phytoremediation is an eco-friendly biotechnology with low costs. The removal of copper (Cu) from polluted water by the two floating plant species Azolla filiculoides and Lemna minor was observed and recorded. Plants were exposed to different Cu (II) concentration (0.25–1.00 mg/L) and sampling time...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402202744X |
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| author | Israa Abdulwahab Al-Baldawi Safaa Rasheed Yasin Salwa Shamran Jasim Siti Rozaimah Sheikh Abdullah Asia Fadhile Almansoory Nur 'Izzati Ismail |
| author_facet | Israa Abdulwahab Al-Baldawi Safaa Rasheed Yasin Salwa Shamran Jasim Siti Rozaimah Sheikh Abdullah Asia Fadhile Almansoory Nur 'Izzati Ismail |
| author_sort | Israa Abdulwahab Al-Baldawi |
| collection | DOAJ |
| description | Phytoremediation is an eco-friendly biotechnology with low costs. The removal of copper (Cu) from polluted water by the two floating plant species Azolla filiculoides and Lemna minor was observed and recorded. Plants were exposed to different Cu (II) concentration (0.25–1.00 mg/L) and sampling time (Days 0, 1, 2, 5 and 7). Both plants can remove Cu at 1.00 mg Cu/L water, with the highest removal rates of 100% for A. filiculoides and 74% for L. minor on the fifth day of exposure. At the end of the exposure period (Day 7), the growth of A. filiculoides exposed to 1.00 mg Cu/L was inhibited by Cu, but the structure of the inner cells of A. filiculoides was well organized as compared to the initial treatment period. Regarding L. minor, Cu at 1.00 mg/L negatively impacted both the growth and morphology (shrinking of its inner structure) of this plant. This is due to the higher accumulation of Cu in L. minor (2.86 mg/g) than in A. filiculoides (1.49 mg/g). Additionally, the rate of Cu removal per dry mass of plant fitted a pseudo-second order model for both plants, whereas the adsorption equilibrium data fitted the Freundlich isotherm, indicating that Cu adsorption occurs in multiple layers. Based on the results, both species can be applied in the phytoremediation of Cu-polluted water. |
| first_indexed | 2024-04-13T13:01:19Z |
| format | Article |
| id | doaj.art-e7d20118d9db48c5b25a7f2df5dea8fc |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-13T13:01:19Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-e7d20118d9db48c5b25a7f2df5dea8fc2022-12-22T02:45:54ZengElsevierHeliyon2405-84402022-11-01811e11456Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isothermsIsraa Abdulwahab Al-Baldawi0Safaa Rasheed Yasin1Salwa Shamran Jasim2Siti Rozaimah Sheikh Abdullah3Asia Fadhile Almansoory4Nur 'Izzati Ismail5Department of Chemical and Process, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia; Department of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, IraqDepartment of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, IraqDepartment of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, IraqDepartment of Chemical and Process, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia; Corresponding author.Department of Ecology, College of Science, University of Basrah, Basrah, IraqDepartment of Chemical and Process, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia; Corresponding author.Phytoremediation is an eco-friendly biotechnology with low costs. The removal of copper (Cu) from polluted water by the two floating plant species Azolla filiculoides and Lemna minor was observed and recorded. Plants were exposed to different Cu (II) concentration (0.25–1.00 mg/L) and sampling time (Days 0, 1, 2, 5 and 7). Both plants can remove Cu at 1.00 mg Cu/L water, with the highest removal rates of 100% for A. filiculoides and 74% for L. minor on the fifth day of exposure. At the end of the exposure period (Day 7), the growth of A. filiculoides exposed to 1.00 mg Cu/L was inhibited by Cu, but the structure of the inner cells of A. filiculoides was well organized as compared to the initial treatment period. Regarding L. minor, Cu at 1.00 mg/L negatively impacted both the growth and morphology (shrinking of its inner structure) of this plant. This is due to the higher accumulation of Cu in L. minor (2.86 mg/g) than in A. filiculoides (1.49 mg/g). Additionally, the rate of Cu removal per dry mass of plant fitted a pseudo-second order model for both plants, whereas the adsorption equilibrium data fitted the Freundlich isotherm, indicating that Cu adsorption occurs in multiple layers. Based on the results, both species can be applied in the phytoremediation of Cu-polluted water.http://www.sciencedirect.com/science/article/pii/S240584402202744XHeavy metalsPhytoremediationFloating plantBioconcentration factorBatch system |
| spellingShingle | Israa Abdulwahab Al-Baldawi Safaa Rasheed Yasin Salwa Shamran Jasim Siti Rozaimah Sheikh Abdullah Asia Fadhile Almansoory Nur 'Izzati Ismail Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms Heliyon Heavy metals Phytoremediation Floating plant Bioconcentration factor Batch system |
| title | Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms |
| title_full | Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms |
| title_fullStr | Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms |
| title_full_unstemmed | Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms |
| title_short | Removal of copper by Azolla filiculoides and Lemna minor: phytoremediation potential, adsorption kinetics and isotherms |
| title_sort | removal of copper by azolla filiculoides and lemna minor phytoremediation potential adsorption kinetics and isotherms |
| topic | Heavy metals Phytoremediation Floating plant Bioconcentration factor Batch system |
| url | http://www.sciencedirect.com/science/article/pii/S240584402202744X |
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