Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water
Supplementary data to this article can be found online at https:// doi.org/10.1016/j.seppur.2019.116139. ; The goal of this study is to demonstrate that waste-based biosorbents can be cost-effective and green alternatives to commercial adsorbents for the retention of pharmaceuticals. Adsorption kinetics and equilibrium measurements allowed the determination of the adsorption capacity of commercial adsorbents (GAC - granular activated carbon and two synthetic zeolites) and waste-based biosorbents (SCG - spent coffee grounds, pine bark and cork waste) for the retention of fluoxetine from water. For commercial adsorbents, the maximum adsorption capacities followed the order GAC (233.5mg/g)>zeolite 13× (32.11mg/g)>zeolite 4A (21.86mg/g), while for low-cost biosorbents, the sequence was SCG (14.31mg/g)>pine bark (6.53mg/g)>cork waste (4.74mg/g). The economic feasibility of the adsorbents/biosorbents was examined through a detailed cost analysis. Commercial adsorbents present higher costs per gram of fluoxetine removed (6.85 /g, 3.13 /g and 1.07 /g zeolite 4 A, zeolite 13× and GAC, respectively) when compared to low-cost biosorbents (0.92 /g, 0.41 /g and 0.16 /g for pine bark, cork waste and SCG, respectively). It was found that SCG is the most economically viable option for fluoxetine removal, while cork waste, the second less expensive, is the most environmentally friendly biosorbent since its preparation does not generate any solid or liquid wastes. This manuscript demonstrates that the conversion of waste materials into adsorbents has a double environmental benefit for both improving waste management and protecting the environment. ; This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the research project PTDC/ AAG-TEC/5269/2014, the strategic funding of UID/BIO/04469/2013 unit and COMPETE 2020 (POCI-01-0145-FEDER-006684) and BioTecNorte operation (NORTE-01-0145-FEDER-000004) funded by the European Regional Development Fund under the scope of Norte2020 - Programa Operacional Regional do Norte. Bruna Silva thanks FCT for a postdoctoral grant (SFRH/BPD/112354/2015). ; info:eu-repo/semantics/publishedVersion
Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water
Supplementary data to this article can be found online at https:// doi.org/10.1016/j.seppur.2019.116139. ; The goal of this study is to demonstrate that waste-based biosorbents can be cost-effective and green alternatives to commercial adsorbents for the retention of pharmaceuticals. Adsorption kinetics and equilibrium measurements allowed the determination of the adsorption capacity of commercial adsorbents (GAC - granular activated carbon and two synthetic zeolites) and waste-based biosorbents (SCG - spent coffee grounds, pine bark and cork waste) for the retention of fluoxetine from water. For commercial adsorbents, the maximum adsorption capacities followed the order GAC (233.5mg/g)>zeolite 13× (32.11mg/g)>zeolite 4A (21.86mg/g), while for low-cost biosorbents, the sequence was SCG (14.31mg/g)>pine bark (6.53mg/g)>cork waste (4.74mg/g). The economic feasibility of the adsorbents/biosorbents was examined through a detailed cost analysis. Commercial adsorbents present higher costs per gram of fluoxetine removed (6.85 /g, 3.13 /g and 1.07 /g zeolite 4 A, zeolite 13× and GAC, respectively) when compared to low-cost biosorbents (0.92 /g, 0.41 /g and 0.16 /g for pine bark, cork waste and SCG, respectively). It was found that SCG is the most economically viable option for fluoxetine removal, while cork waste, the second less expensive, is the most environmentally friendly biosorbent since its preparation does not generate any solid or liquid wastes. This manuscript demonstrates that the conversion of waste materials into adsorbents has a double environmental benefit for both improving waste management and protecting the environment. ; This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the research project PTDC/ AAG-TEC/5269/2014, the strategic funding of UID/BIO/04469/2013 unit and COMPETE 2020 (POCI-01-0145-FEDER-006684) and BioTecNorte operation (NORTE-01-0145-FEDER-000004) funded by the European Regional Development Fund under the scope of Norte2020 - Programa Operacional Regional do Norte. Bruna Silva thanks FCT for a postdoctoral grant (SFRH/BPD/112354/2015). ; info:eu-repo/semantics/publishedVersion
Waste-based biosorbents as cost-effective alternatives to commercial adsorbents for the retention of fluoxetine from water
Silva, Bruna (Autor:in) / Martins, Mariana (Autor:in) / Rosca, M. (Autor:in) / Rocha, Verónica (Autor:in) / Lago, A. (Autor:in) / Neves, Isabel C. (Autor:in) / Tavares, Teresa (Autor:in)
18.03.2020
doi:10.1016/j.seppur.2019.116139
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
710
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