Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent
Adsorption is one of the most easy-to-operate, less costly, efficient and, most importantly, environmentally friendly methods of removing toxic metals from aqueous environments. We used spent Impra Green Tea Ginseng Flavoured to recover mercury (Hg2+), lead (Pb2+) and cadmium (Cd2+) in binary and t...
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| Format: | Article |
| Language: | English |
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Academy of Science of South Africa
2023-08-01
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| Series: | South African Journal of Science |
| Subjects: | |
| Online Access: | https://sajs.co.za/article/view/13352 |
| _version_ | 1797749085995794432 |
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| author | Raphael B.H. Gameli Elliot H. Alhassan Abudu B. Duwiejuah Emmanuel D. Abarike Abdul-Aziz Bawa |
| author_facet | Raphael B.H. Gameli Elliot H. Alhassan Abudu B. Duwiejuah Emmanuel D. Abarike Abdul-Aziz Bawa |
| author_sort | Raphael B.H. Gameli |
| collection | DOAJ |
| description |
Adsorption is one of the most easy-to-operate, less costly, efficient and, most importantly, environmentally friendly methods of removing toxic metals from aqueous environments. We used spent Impra Green Tea Ginseng Flavoured to recover mercury (Hg2+), lead (Pb2+) and cadmium (Cd2+) in binary and ternary systems from greywater. We undertook this study in binary and ternary systems at adsorbent dosages with a corresponding 100 mL varied initial metal concentrations of the greywater. The adsorption efficiency at varied concentrations and dosages in the binary systems by the spent tea waste ranged from 38.5% to 100% for lead, 11.50% to 100% for cadmium and was 100% for mercury. In the ternary system, the adsorption efficiency of toxic metals ranged from 28.91% to 72.85% for cadmium and was 100% for mercury and lead. The maximum adsorption capacity (Qe) for toxic metals in the binary system ranged from 38.46 to 81.97 mg/g for Pb2+ and 12.64 to 56.82 mg/g for Cd2+. The Langmuir adsorption isotherm model was the best fit for the adsorption of toxic metals by Impra Green Tea Ginseng Flavoured. The pH under which the experiments were conducted showed very high removal efficiency for lead and mercury but lower removal efficiencies for cadmium. Spent Impra Green Tea Ginseng Flavoured can be used as an effective and low-cost adsorbent of toxic metals from greywater or wastewater. Based on our findings, further studies should be conducted to determine the effects of varying the contact time, temperature and elevated metal concentrations in the greywater or other wastewater.
Significance:
• This study provides useful information on how spent Impra Green Tea Ginseng Flavoured can be used as an effective and low-cost adsorbent of toxic metals from greywater or wastewater.
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| first_indexed | 2024-03-12T16:14:10Z |
| format | Article |
| id | doaj.art-1e6a01ab30554bbd839ae6b4a84e93bb |
| institution | Directory Open Access Journal |
| issn | 1996-7489 |
| language | English |
| last_indexed | 2024-03-12T16:14:10Z |
| publishDate | 2023-08-01 |
| publisher | Academy of Science of South Africa |
| record_format | Article |
| series | South African Journal of Science |
| spelling | doaj.art-1e6a01ab30554bbd839ae6b4a84e93bb2023-08-09T06:38:00ZengAcademy of Science of South AfricaSouth African Journal of Science1996-74892023-08-011197/810.17159/sajs.2023/13352Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbentRaphael B.H. Gameli0Elliot H. Alhassan1Abudu B. Duwiejuah2Emmanuel D. Abarike3Abdul-Aziz Bawa4Department of Environment and Sustainability Sciences, Faculty of Natural Resources and Environment, University for Development Studies, Nyankpala Campus, Tamale, GhanaDepartment of Fisheries and Aquatic Resources Management, Faculty of Biosciences, University for Development Studies, Nyankpala Campus, Nyankpala, GhanaDepartment of Biotechnology and Molecular Biology, Faculty of Biosciences, University for Development Studies, Nyankpala Campus, Tamale, GhanaDepartment of Fisheries and Aquatic Resources Management, Faculty of Biosciences, University for Development Studies, Nyankpala Campus, Tamale, GhanaSpanish Laboratory Complex, University for Development Studies, Nyankpala Campus,Tamale, Ghana Adsorption is one of the most easy-to-operate, less costly, efficient and, most importantly, environmentally friendly methods of removing toxic metals from aqueous environments. We used spent Impra Green Tea Ginseng Flavoured to recover mercury (Hg2+), lead (Pb2+) and cadmium (Cd2+) in binary and ternary systems from greywater. We undertook this study in binary and ternary systems at adsorbent dosages with a corresponding 100 mL varied initial metal concentrations of the greywater. The adsorption efficiency at varied concentrations and dosages in the binary systems by the spent tea waste ranged from 38.5% to 100% for lead, 11.50% to 100% for cadmium and was 100% for mercury. In the ternary system, the adsorption efficiency of toxic metals ranged from 28.91% to 72.85% for cadmium and was 100% for mercury and lead. The maximum adsorption capacity (Qe) for toxic metals in the binary system ranged from 38.46 to 81.97 mg/g for Pb2+ and 12.64 to 56.82 mg/g for Cd2+. The Langmuir adsorption isotherm model was the best fit for the adsorption of toxic metals by Impra Green Tea Ginseng Flavoured. The pH under which the experiments were conducted showed very high removal efficiency for lead and mercury but lower removal efficiencies for cadmium. Spent Impra Green Tea Ginseng Flavoured can be used as an effective and low-cost adsorbent of toxic metals from greywater or wastewater. Based on our findings, further studies should be conducted to determine the effects of varying the contact time, temperature and elevated metal concentrations in the greywater or other wastewater. Significance: • This study provides useful information on how spent Impra Green Tea Ginseng Flavoured can be used as an effective and low-cost adsorbent of toxic metals from greywater or wastewater. https://sajs.co.za/article/view/13352adsorptionbinary systemgreywatermercurygreen tea |
| spellingShingle | Raphael B.H. Gameli Elliot H. Alhassan Abudu B. Duwiejuah Emmanuel D. Abarike Abdul-Aziz Bawa Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent South African Journal of Science adsorption binary system greywater mercury green tea |
| title | Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent |
| title_full | Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent |
| title_fullStr | Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent |
| title_full_unstemmed | Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent |
| title_short | Binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent |
| title_sort | binary and ternary metals adsorption from greywater using spent green tea as a novel adsorbent |
| topic | adsorption binary system greywater mercury green tea |
| url | https://sajs.co.za/article/view/13352 |
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