Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation
In this study we focus on recovery and concentration of ortho-phenylphenol (OPP) from fermentation broth by aqueous two-phase flotation (ATPF). The effects of pH, ammonium sulfate concentration, OPP concentration, air flow-rate, flotation time and initial volume of organic phase were evaluated on...
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ri-123456789-451902023-02-14T19:48:12Z Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation Souza, Domingos Fabiano de Santana Padilha, Carlos Eduardo de Araújo Dantas, Paulo Victor Fortunato Sousa Júnior, Francisco Canindé Oliveira Júnior, Sérgio Dantas Nogueira, Cleitiane da Costa Oliveira, Jackson Araújo de Macedo, Gorete Ribeiro de Santos, Everaldo Silvino dos Aqueous two-phase flotation Recovery Ortho-phenylphenol Dibenzothiophene Experimental design In this study we focus on recovery and concentration of ortho-phenylphenol (OPP) from fermentation broth by aqueous two-phase flotation (ATPF). The effects of pH, ammonium sulfate concentration, OPP concentration, air flow-rate, flotation time and initial volume of organic phase were evaluated on process performance using multivariate statistical methodology. Under optimal conditions, the separation efficiency (E%), the concentration coefficient (a) and the distribution coefficient (D) for ATPF reached 57.55%, 4.23 and 9.86, respectively. When compared to others conventional techniques also used in this work, such as aqueous two-phase extraction, solvent sublation and liquid-liquid extraction, the ATPF showed better performance in terms of E%, a and D. Additionally, experiments carried out with fermentation broth derived from the biodesulfurization of 4-MDBT have shown promise in the recovery and concentration of OPP. In summary, the results indicated that the ATPF is an effective separation technique in the pretreatment of the OPP from bona fide mixtures 2021-12-06T18:09:55Z 2021-12-06T18:09:55Z 2017-04 article PADILHA, Carlos Eduardo de Araújo; DANTAS, Paulo Victor Fortunato; SOUSA JÚNIOR, Francisco Canindé; OLIVEIRA JÚNIOR, Sérgio Dantas; NOGUEIRA, Cleitiane da Costa; SOUZA, Domingos Fabiano de Santana; OLIVEIRA, Jackson Araújo de; MACEDO, Gorete Ribeiro de; SANTOS, Everaldo Silvino dos. Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation. Separation And Purification Technology, [S.L.], v. 176, p. 306-312, abr. 2017. Elsevier BV. http://dx.doi.org/10.1016/j.seppur.2016.12.029. Disponível em <https://www.sciencedirect.com/science/article/abs/pii/S1383586616318202?via%3Dihub> Acesso em 05 nov. 2021. 1383-5866 https://repositorio.ufrn.br/handle/123456789/45190 10.1016/j.seppur.2016.12.029 en Elsevier |
| institution |
Repositório Institucional |
| collection |
RI - UFRN |
| language |
English |
| topic |
Aqueous two-phase flotation Recovery Ortho-phenylphenol Dibenzothiophene Experimental design |
| spellingShingle |
Aqueous two-phase flotation Recovery Ortho-phenylphenol Dibenzothiophene Experimental design Souza, Domingos Fabiano de Santana Padilha, Carlos Eduardo de Araújo Dantas, Paulo Victor Fortunato Sousa Júnior, Francisco Canindé Oliveira Júnior, Sérgio Dantas Nogueira, Cleitiane da Costa Oliveira, Jackson Araújo de Macedo, Gorete Ribeiro de Santos, Everaldo Silvino dos Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| description |
In this study we focus on recovery and concentration of ortho-phenylphenol (OPP) from fermentation
broth by aqueous two-phase flotation (ATPF). The effects of pH, ammonium sulfate concentration, OPP
concentration, air flow-rate, flotation time and initial volume of organic phase were evaluated on process
performance using multivariate statistical methodology. Under optimal conditions, the separation efficiency (E%), the concentration coefficient (a) and the distribution coefficient (D) for ATPF reached
57.55%, 4.23 and 9.86, respectively. When compared to others conventional techniques also used in this
work, such as aqueous two-phase extraction, solvent sublation and liquid-liquid extraction, the ATPF
showed better performance in terms of E%, a and D. Additionally, experiments carried out with fermentation broth derived from the biodesulfurization of 4-MDBT have shown promise in the recovery and concentration of OPP. In summary, the results indicated that the ATPF is an effective separation technique in
the pretreatment of the OPP from bona fide mixtures |
| format |
article |
| author |
Souza, Domingos Fabiano de Santana Padilha, Carlos Eduardo de Araújo Dantas, Paulo Victor Fortunato Sousa Júnior, Francisco Canindé Oliveira Júnior, Sérgio Dantas Nogueira, Cleitiane da Costa Oliveira, Jackson Araújo de Macedo, Gorete Ribeiro de Santos, Everaldo Silvino dos |
| author_facet |
Souza, Domingos Fabiano de Santana Padilha, Carlos Eduardo de Araújo Dantas, Paulo Victor Fortunato Sousa Júnior, Francisco Canindé Oliveira Júnior, Sérgio Dantas Nogueira, Cleitiane da Costa Oliveira, Jackson Araújo de Macedo, Gorete Ribeiro de Santos, Everaldo Silvino dos |
| author_sort |
Souza, Domingos Fabiano de Santana |
| title |
Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| title_short |
Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| title_full |
Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| title_fullStr |
Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| title_full_unstemmed |
Recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| title_sort |
recovery and concentration of ortho-phenylphenol from biodesulfurization of 4-methyl dibenzothiophene by aqueous two-phase flotation |
| publisher |
Elsevier |
| publishDate |
2021 |
| url |
https://repositorio.ufrn.br/handle/123456789/45190 |
| work_keys_str_mv |
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