Cadmium removal from aqueous solution by blended bamboo sawdust/rice-husk biochar; optimization of influencing parameters

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dc.contributor.authorKwikima, Muhajir Mussa
dc.contributor.authorChebude, Yonas
dc.contributor.authorMeshesha, Beteley Tekola
dc.date.accessioned2023-05-23T06:34:26Z
dc.date.available2023-05-23T06:34:26Z
dc.date.issued2022
dc.descriptionAbstract. Full text article available at https://doi.org/10.1080/15226514.2022.2159318en_US
dc.description.abstractThis study attempted to investigate the adsorptive potential of blended bamboo (Oxytenanthera abyssinica) sawdust/rice husk (BSD/RH) at a ratio of 1:1 carbonized at 400 °C for the sorption of cadmium ions from synthetic solutions in batch mode. The Box-Behnken Design in response surface methodology (RSM) was used to achieve the best removal efficiency and adsorption capacity of the biochar. With a p-value of 0.0001, the initial Cd2+ concentration and adsorbent dose were discovered to be the most significant parameters controlling the adsorption capacity and removal efficiency of Cd2+ from the solution. At a pH of 8.95, ionic strength of 0.020 mol/L KNO3, a contact time of 15 min, an initial concentration of 200 mg/L, and an adsorbent dose of 0.5 g, the optimum Cd2+ removal and adsorption capacity of 99.97% and 358.65 mg/g, respectively, were obtained. The optimized conditions were later used to determine the removal efficiency and adsorption capacity of pristine biochars of rice husk and bamboo sawdust, which were found to be 79.8% and 83.7%, respectively. This finding indicates the potential for using biosorbent derived from blended feedstock materials to remove heavy metals such as cadmium.en_US
dc.identifier.citationKwikima, M. M., Chebude, Y., & Meshesha, B. T. (2022). Cadmium removal from aqueous solution by blended bamboo sawdust/rice-husk biochar; optimization of influencing parameters. International Journal of Phytoremediation, 1-16.en_US
dc.identifier.otherDOI: https://doi.org/10.1080/15226514.2022.2159318
dc.identifier.urihttp://hdl.handle.net/20.500.12661/3814
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.subjectCadmiumen_US
dc.subjectAqueous solutionen_US
dc.subjectBamboo sawdusten_US
dc.subjectRice-husk biocharen_US
dc.subjectCadmium removal efficiencyen_US
dc.subjectBlended bambooen_US
dc.subjectBiocharen_US
dc.subjectOxytenanthera abyssinicaen_US
dc.subjectBox-Behnken designen_US
dc.subjectAgriculture wasteen_US
dc.titleCadmium removal from aqueous solution by blended bamboo sawdust/rice-husk biochar; optimization of influencing parametersen_US
dc.typeArticleen_US
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