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      Ibuprofen biosorption by chemically activated Saccharomyces cerevisiae Translated title: Biossorção de ibuprofeno por Saccharomyces cerevisiae ativada quimicamente

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          Abstract

          Abstract Saccharomyces cerevisiae biomass was activated chemically, and its ibuprofen (IBP) biosorption capabilities were assessed regarding IBP removal from an aqueous solution. The effects of pH (2-10), contact time (0-90 min), IBP concentration (5-35 mg L-1), and temperature (20, 30, 40°C) were evaluated in batch studies. Higher removal rates of IBP were found at pH 2.0. The pseudo-second-order kinetic model best described the experimental data. Both the Langmuir and Freundlich isotherm models described the equilibrium data satisfactorily. The maximum biosorption capacity for IBP onto chemically activated Saccharomyces cerevisiae biomass (CA-YB) was estimated at 13.39 mg g-1 at 40°C. The activation energy calculated by the Dubinin-Radushkevich isotherm model was 9.129 kJ mol-1, indicating that a chemical process mediated the biosorption of IBP onto CA-YB. According to thermodynamic studies, IBP biosorption is spontaneous and endothermic. FTIR analysis revealed that the carboxyl, hydroxyl, phosphoryl, and amino groups were involved in the biosorption process of IBP. These findings indicated that CA-YB could be an alternative biosorbent for IBP removal from aqueous media.

          Translated abstract

          Resumo Biomassa de Saccharomyces cerevisiae foi ativada quimicamente e sua capacidade de biossorção foi explorada para a remoção do ibuprofeno (IBP) da solução aquosa. Os efeitos do pH (2-10), tempo de contato (0-90 min), concentração de IBP (5-35 mg L-1) e temperatura (20, 30, 40°C) foram avaliados em estudos de bateladas. Em pH 2,0 foram encontradas as maiores taxas de remoção de IBP. O modelo cinético de pseudo-segunda ordem foi o mais adequado para descrever os dados experimentais. Ambos os modelos de isoterma de Langmuir e Freundlich descreveram os dados de equilíbrio de forma satisfatória. A capacidade máxima de biossorção para IBP pela biomassa de Saccharomyces cerevisiae quimicamente ativada (CA-YB) foi estimada em 13,39 mg g-1 a 40°C. A energia de ativação calculada pelo modelo de isoterma de Dubinin-Radushkevich foi de 9,129 kJ mol-1, indicando que um processo químico mediou a biossorção de IBP por CA-YB. De acordo com os estudos termodinâmicos, a biossorção do IBP é espontânea e endotérmica. A análise de FTIR revelou que os grupos carboxila, hidroxila, fosforila e amino estavam envolvidos no processo de biossorção do IBP. Essas descobertas indicaram que CA-YB pode ser um biossorvente alternativo para a remoção de IBP do meio aquoso.

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          Sorptive removal of salicylic acid and ibuprofen from aqueous solutions using pine wood fast pyrolysis biochar

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            Removal of ibuprofen from aqueous media by adsorption: A comprehensive review

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              Water remediation using low cost adsorbent walnut shell for removal of malachite green: Equilibrium, kinetics, thermodynamic and regeneration studies

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                Author and article information

                Journal
                ambiagua
                Revista Ambiente & Água
                Rev. Ambient. Água
                Instituto de Pesquisas Ambientais em Bacias Hidrográficas (Taubaté, SP, Brazil )
                1980-993X
                2022
                : 17
                : 5
                : e2862
                Affiliations
                [3] Cuiabá Mato Grosso orgnameUniversidade Federal de Mato Grosso orgdiv1Faculdade de Arquitetura, Engenharia e Tecnologia orgdiv2Departamento de Engenharia Sanitária e Ambiental Brazil danilacaixeta@ 123456gmail.com
                [2] Cuiabá Mato Grosso orgnameUniversidade Federal de Mato Grosso orgdiv1Instituto de Ciências Exatas e da Terra orgdiv2Departamento de Química Brazil dalloglio.evandro@ 123456gmail.com
                [1] Cuiabá Mato Grosso orgnameUniversidade Federal de Mato Grosso orgdiv1Faculdade de Arquitetura, Engenharias e Tecnologias orgdiv2Departamento de Engenharia Sanitária e Ambiental Brazil bruna.santos_assis@ 123456hotmail.com
                Article
                S1980-993X2022000500303 S1980-993X(22)01700500303
                10.4136/ambi-agua.2862
                8c111e36-7918-43bf-b6ed-f2e100ef2028

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 07 June 2022
                : 02 August 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 0
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                SciELO Brazil

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                thermodynamic study,isotermas,fármacos,estudo termodinâmico,cinética,biomassa microbiana,pharmaceutical drugs,microbial biomass,kinetic,isotherms

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