Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization
<p dir="ltr">The present study evaluates the effect of an acidic treatment on the improvement of the percentage removal of toxic metal (%TM<sub>rem</sub>) from wastewater by algae strains (<i>Spirulina platensis</i> (<i>SP</i>) and <i>Chlorel...
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2021
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| _version_ | 1864513558940745728 |
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| author | Fares Almomani (12585685) |
| author2 | Rahul R. Bhosale (6467102) |
| author2_role | author |
| author_facet | Fares Almomani (12585685) Rahul R. Bhosale (6467102) |
| author_role | author |
| dc.creator.none.fl_str_mv | Fares Almomani (12585685) Rahul R. Bhosale (6467102) |
| dc.date.none.fl_str_mv | 2021-02-10T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.scitotenv.2020.142654 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Bio-sorption_of_toxic_metals_from_industrial_wastewater_by_algae_strains_Spirulina_platensis_and_Chlorella_vulgaris_Application_of_isotherm_kinetic_models_and_process_optimization/24242566 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Environmental engineering Isotherms Thermodynamic model Treated bio-sorbent Spirulina platensis Chlorella vulgar |
| dc.title.none.fl_str_mv | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">The present study evaluates the effect of an acidic treatment on the improvement of the percentage removal of toxic metal (%TM<sub>rem</sub>) from wastewater by algae strains (<i>Spirulina platensis</i> (<i>SP</i>) and <i>Chlorella</i><i> </i><i>vulgar</i> (<i>CV</i>)) under different adsorbent dosages (0.2–2.5 g), a pH of (4–8) and contact time (5–100 min). The acidic treatment (Ac-T) altered the functional groups on the surface of algae promoting more electronegative groups and improved the %TM<sub>rem</sub> of Al, Ni and Cu. Treated <i>SP</i> removed up to 95.0 ± 0.3% (Std. Dev = 0.24), 87.0 ± 0.2% (Std. Dev = 0.34)%, and 63.0 ± 0.3% (Std. Dev = 0.14) of Al, Ni, and Cu at the optimum pH of 5.5, 6.0, and, 7.0 and an adsorbent dosage of = 2.5 ± 0.1 g/L (Std. Dev = 0.14) g/L, respectively. Lower %TM<sub>rem</sub> of 87.0% ± 0.2 (Std. Dev = 0.09), 79.1 ± 0.4% (Std. Dev = 0.08), and 80.0 ± 0.2% (Std. Dev = 0.04) were achieved with treated <i>CV</i>, respectively. The optimum operational conditions for maximum %TM<sub>rem</sub> were determined at (C<sub>algae</sub> = 4.8 ± 0.2 g<sub>MNPs</sub>.L<sup>−1</sup>, C<sub>t</sub> = 88 ± 1, and pH = 6) using the response surface methodology (RSM). The adsorption of TMs on algae is endothermic, spontaneous, and follows Langmuir and second-order kinetics. Zeta potential measurements indicated that the adsorption mechanism between the toxic metal (TM) and algal strains is controlled by electrostatic interaction. As such, bio-sorption is a sustainable and efficient technology for the removal of TM from wastewater.</p><h2>Other Information</h2><p dir="ltr">Published in: Science of The Total Environment<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.scitotenv.2020.142654" target="_blank">https://dx.doi.org/10.1016/j.scitotenv.2020.142654</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_d1de0350f698685522f798909dabaef8 |
| identifier_str_mv | 10.1016/j.scitotenv.2020.142654 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24242566 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimizationFares Almomani (12585685)Rahul R. Bhosale (6467102)EngineeringChemical engineeringEnvironmental engineeringIsothermsThermodynamic modelTreated bio-sorbentSpirulina platensisChlorella vulgar<p dir="ltr">The present study evaluates the effect of an acidic treatment on the improvement of the percentage removal of toxic metal (%TM<sub>rem</sub>) from wastewater by algae strains (<i>Spirulina platensis</i> (<i>SP</i>) and <i>Chlorella</i><i> </i><i>vulgar</i> (<i>CV</i>)) under different adsorbent dosages (0.2–2.5 g), a pH of (4–8) and contact time (5–100 min). The acidic treatment (Ac-T) altered the functional groups on the surface of algae promoting more electronegative groups and improved the %TM<sub>rem</sub> of Al, Ni and Cu. Treated <i>SP</i> removed up to 95.0 ± 0.3% (Std. Dev = 0.24), 87.0 ± 0.2% (Std. Dev = 0.34)%, and 63.0 ± 0.3% (Std. Dev = 0.14) of Al, Ni, and Cu at the optimum pH of 5.5, 6.0, and, 7.0 and an adsorbent dosage of = 2.5 ± 0.1 g/L (Std. Dev = 0.14) g/L, respectively. Lower %TM<sub>rem</sub> of 87.0% ± 0.2 (Std. Dev = 0.09), 79.1 ± 0.4% (Std. Dev = 0.08), and 80.0 ± 0.2% (Std. Dev = 0.04) were achieved with treated <i>CV</i>, respectively. The optimum operational conditions for maximum %TM<sub>rem</sub> were determined at (C<sub>algae</sub> = 4.8 ± 0.2 g<sub>MNPs</sub>.L<sup>−1</sup>, C<sub>t</sub> = 88 ± 1, and pH = 6) using the response surface methodology (RSM). The adsorption of TMs on algae is endothermic, spontaneous, and follows Langmuir and second-order kinetics. Zeta potential measurements indicated that the adsorption mechanism between the toxic metal (TM) and algal strains is controlled by electrostatic interaction. As such, bio-sorption is a sustainable and efficient technology for the removal of TM from wastewater.</p><h2>Other Information</h2><p dir="ltr">Published in: Science of The Total Environment<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.scitotenv.2020.142654" target="_blank">https://dx.doi.org/10.1016/j.scitotenv.2020.142654</a></p>2021-02-10T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.scitotenv.2020.142654https://figshare.com/articles/journal_contribution/Bio-sorption_of_toxic_metals_from_industrial_wastewater_by_algae_strains_Spirulina_platensis_and_Chlorella_vulgaris_Application_of_isotherm_kinetic_models_and_process_optimization/24242566CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/242425662021-02-10T00:00:00Z |
| spellingShingle | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization Fares Almomani (12585685) Engineering Chemical engineering Environmental engineering Isotherms Thermodynamic model Treated bio-sorbent Spirulina platensis Chlorella vulgar |
| status_str | publishedVersion |
| title | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| title_full | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| title_fullStr | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| title_full_unstemmed | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| title_short | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| title_sort | Bio-sorption of toxic metals from industrial wastewater by algae strains Spirulina platensis and Chlorella vulgaris: Application of isotherm, kinetic models and process optimization |
| topic | Engineering Chemical engineering Environmental engineering Isotherms Thermodynamic model Treated bio-sorbent Spirulina platensis Chlorella vulgar |