@article{(Open Science Index):https://publications.waset.org/pdf/10001059, title = {LIFirr with an Indicator of Microbial Activity in Paraffinic Oil}, author = {M. P. Casiraghi and C. M. Quintella and P. Almeida}, country = {}, institution = {}, abstract = {Paraffinic oils were submitted to microbial action. The microorganisms consisted of bacteria of the genera Pseudomonas sp. and Bacillus lincheniforms. The alterations in interfacial tension were determined using a tensometer and applying the hanging drop technique at room temperature (299 K ±275 K). The alteration in the constitution of the paraffins was evaluated by means of gas chromatography. The microbial activity was observed to reduce interfacial tension by 54 to 78%, as well as consuming the paraffins C19 to C29 and producing paraffins C36 to C44. The LIFirr technique made it possible to determine the microbial action quickly. }, journal = {International Journal of Geological and Environmental Engineering}, volume = {9}, number = {2}, year = {2015}, pages = {195 - 199}, ee = {https://publications.waset.org/pdf/10001059}, url = {https://publications.waset.org/vol/98}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 98, 2015}, }