Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers
In this work, waste marigold flowers from Temple were used as adsorbent to remove cadmium (II) and chromium (VI) ions from aqueous solutions. Influences of initial heavy metal concentrations, contact time, adsorbent dose, temperature and initial pH on removal of cadmium (II) and chromium (VI) ions w...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SDEWES Centre
2015-12-01
|
| Series: | Journal of Sustainable Development of Energy, Water and Environment Systems |
| Subjects: | |
| Online Access: |
http://www.sdewes.org/jsdewes/pi2015.03.0030
|
| _version_ | 1828766647809212416 |
|---|---|
| author | Monoj Kumar Mondal Garima Mishra Pradeep Kumar |
| author_facet | Monoj Kumar Mondal Garima Mishra Pradeep Kumar |
| author_sort | Monoj Kumar Mondal |
| collection | DOAJ |
| description | In this work, waste marigold flowers from Temple were used as adsorbent to remove cadmium (II) and chromium (VI) ions from aqueous solutions. Influences of initial heavy metal concentrations, contact time, adsorbent dose, temperature and initial pH on removal of cadmium (II) and chromium (VI) ions were studied under batch mode of operation. Both the adsorption process of cadmium (II) and chromium (VI) followed pseudo-second order kinetics. Adsorption isotherm parameters of cadmium (II) and chromium (VI) on dried marigold flower were determined using Langmuir and Freundlich models. Thermodynamic parameters depicted that the process was spontaneous and exothermic under experimental conditions. The maximum removal efficiency of cadmium (II) was obtained as 83% at contact time 75 min and pH 5. The maximum removal efficiency of chromium (VI) was found as 96% at contact time 105 min and pH 3. Dried marigold flower showed active reusability characteristics upto three consecutive adsorption-desorption cycles. |
| first_indexed | 2024-12-11T07:10:38Z |
| format | Article |
| id | doaj.art-d9b61892e94e417082b0eed4db365fbb |
| institution | Directory Open Access Journal |
| issn | 1848-9257 |
| language | English |
| last_indexed | 2024-12-11T07:10:38Z |
| publishDate | 2015-12-01 |
| publisher | SDEWES Centre |
| record_format | Article |
| series | Journal of Sustainable Development of Energy, Water and Environment Systems |
| spelling | doaj.art-d9b61892e94e417082b0eed4db365fbb2022-12-22T01:16:21ZengSDEWES CentreJournal of Sustainable Development of Energy, Water and Environment Systems1848-92572015-12-013440541510.13044/j.sdewes.2015.03.003000092Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold FlowersMonoj Kumar Mondal0Garima Mishra1Pradeep Kumar2 Indian Institute of Technology (Banaras Hindu University), India Indian Institute of Technology (Banaras Hindu University), India Indian Institute of Technology (Banaras Hindu University), India In this work, waste marigold flowers from Temple were used as adsorbent to remove cadmium (II) and chromium (VI) ions from aqueous solutions. Influences of initial heavy metal concentrations, contact time, adsorbent dose, temperature and initial pH on removal of cadmium (II) and chromium (VI) ions were studied under batch mode of operation. Both the adsorption process of cadmium (II) and chromium (VI) followed pseudo-second order kinetics. Adsorption isotherm parameters of cadmium (II) and chromium (VI) on dried marigold flower were determined using Langmuir and Freundlich models. Thermodynamic parameters depicted that the process was spontaneous and exothermic under experimental conditions. The maximum removal efficiency of cadmium (II) was obtained as 83% at contact time 75 min and pH 5. The maximum removal efficiency of chromium (VI) was found as 96% at contact time 105 min and pH 3. Dried marigold flower showed active reusability characteristics upto three consecutive adsorption-desorption cycles. http://www.sdewes.org/jsdewes/pi2015.03.0030 AdsorptionCd(II) and Cr(VI)KineticsIsothermsMarigold flower |
| spellingShingle | Monoj Kumar Mondal Garima Mishra Pradeep Kumar Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers Journal of Sustainable Development of Energy, Water and Environment Systems Adsorption Cd(II) and Cr(VI) Kinetics Isotherms Marigold flower |
| title | Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers |
| title_full | Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers |
| title_fullStr | Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers |
| title_full_unstemmed | Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers |
| title_short | Adsorption Process and Mechanism of Cd(Ii) and Cr(Vi) Removal from Aqueous Solution by Waste Marigold Flowers |
| title_sort | adsorption process and mechanism of cd ii and cr vi removal from aqueous solution by waste marigold flowers |
| topic | Adsorption Cd(II) and Cr(VI) Kinetics Isotherms Marigold flower |
| url |
http://www.sdewes.org/jsdewes/pi2015.03.0030
|
| work_keys_str_mv | AT monojkumarmondal adsorptionprocessandmechanismofcdiiandcrviremovalfromaqueoussolutionbywastemarigoldflowers AT garimamishra adsorptionprocessandmechanismofcdiiandcrviremovalfromaqueoussolutionbywastemarigoldflowers AT pradeepkumar adsorptionprocessandmechanismofcdiiandcrviremovalfromaqueoussolutionbywastemarigoldflowers |