Nature of insoluble material found in the bottom of soybean biodiesel storage tank : chemical and microbiological approach
| Autor: | Thaisa Hengles, Fatima Menezes Bento, Márcia V. Bisol, Maria do Carmo Ruaro Peralba, Marco Flôres Ferrão, Juciana Clarice Cazarolli, Camila Correa, Nelson Roberto Antoniosi Filho, Gabriela Boelter, Kelly da S. Bezerra, Amanda Muliterno Domingues Lourenço de Lima, Eduardo Homem de Siqueira Cavalcanti |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Microorganismos
Catálise [Biodiesel de soja] 020209 energy Microorganism Microorganisms Soybean biodiesel 02 engineering and technology 010501 environmental sciences Bacterial growth 01 natural sciences Chemical reaction complex mixtures Sludge 0202 electrical engineering electronic engineering information engineering Fourier transform infrared spectroscopy Infrared spectroscopy Biodeterioração 0105 earth and related environmental sciences Biodiesel Chemistry food and beverages General Chemistry Espectroscopia no infravermelho Iodo Biodeterioration Microbial population biology Environmental chemistry Biodiesel production Gas chromatography |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Journal of the Brazilian Chemical Society v.29 n.10 2018 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ |
| Popis: | During biodiesel storage, chemical reactions may occur, producing sludges. The aim of this study was to characterize the chemical and microbial composition of the sludge found in a biodiesel storage tank. The material was collected in a biodiesel production plant. The sludge chemical characterization was performed by Fourier transform infrared (FTIR) spectroscopy, flame atomic absorption spectroscopy (FAAS), gas chromatography (GC), and the microbial investigation used culture-dependent techniques. The deteriogenic potential of the native microbial community was evaluated using the sludge as a microbial inoculum in a 60 day experiment. The microbial growth, biodiesel degradation, pH alterations, and the detection of esters in the aqueous phase were evaluated. The chemical analysis indicated the sludge composition as fatty acids esters and metallic ions; sterols glycosides were not detected. Seven bacteria and five fungi species were obtained from the sludge. The microbial growth analysis indicated that the native community does not have high biodiesel deteriogenic capacity. |
| Databáze: | OpenAIRE |
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