title: Technoeconomic assessment of phenanthrene degradation by Pseudomonas stutzeri CECT 930 in a batch bioreactor.
abstract: Polycyclic aromatic hydrocarbons (PAHs) are among the most persistent pollutants that accumulate in natural environment mainly as a result of anthropogenic activities. Therefore, the improvement of the available bank of microbial resources and information is crucial to the proper management of PAHs-polluted sites and effluents. In this work, Pseudomonas stutzeri CECT 930 was selected for aerobically degrading an aqueous effluent containing phenanthrene (PHE). Maximum PHE degradation of 90% was obtained both at flask and stirred tank bioreactor scale. All the experimental data were fitted to logistic and Luedeking and Piret models, and licensed to quantitatively ascertain a stronger dependence on the biomass of the metabolites triggering the bioremediation process. In addition, PHE degradation via protocatechuate pathway was elucidated through GC-MS data. Finally, based on the promising results of biodegradation, a preliminary economic evaluation of this process at industrial scale was approached by means of simulation data obtained with SuperPro Designer.
authors.affiliation: Department of Chemical Engineering, University of Vigo, 36310 Vigo, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Moscoso
authors.forename: F J
authors.initials: FJ
authors.lastname: Deive
authors.forename: M A
authors.initials: MA
authors.lastname: Longo
authors.forename: M A
authors.initials: MA
authors.lastname: Sanromán
mesh_terms: D061249:Batch Cell Culture Techniques / Q000191:economics* / Q000295:instrumentation*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000191:economics* / Q000382:microbiology; D003198:Computer Simulation; D008954:Models, Biological; D018803:Models, Economic; D010616:Phenanthrenes / Q000191:economics* / Q000378:metabolism*; D044223:Pseudomonas stutzeri / Q000378:metabolism*; D013030:Spain
chemical_list: D010616:Phenanthrenes; C031181:phenanthrene