کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4410293 1307537 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessment of a process to degrade metal working fluids using Pseudomonas stutzeri CECT 930 and indigenous microbial consortia
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Assessment of a process to degrade metal working fluids using Pseudomonas stutzeri CECT 930 and indigenous microbial consortia
چکیده انگلیسی

The development of a novel biological process to treat metal working fluids (MWFs)-containing effluents at bioreactor scale was pursued in this work. The bacteria Pseudomonas stutzeri CECT 930 was investigated for the first time as an alternative agent for MWF degradation. An adequate medium design and mixing and aeration system, as well as an appropriate microorganism proved to be crucial for reaching high levels of degradation by P. stutzeri and by an indigenous consortium (about 70% and 50% of reduction in total petroleum hydrocarbon content in less than 2 wk, respectively). Additionally, as there is no information in literature trying to kinetically characterize an MWF-polluted effluent degradation process, all the experimental data were fitted to logistic and Luedeking and Piret models, that allowed to elucidate the growth-associated character of the biodegradation process.


► First study for remediating MWFs containing-effluents with Pseudomonas stutzeri.
► Comparison of remediation efficiency between indigenous and allochthonous strains.
► High biodegradation levels of a recalcitrant MWF in a mechanic stirring bioreactor.
► Bioprocess kinetically characterized through logistic and Luedeking and Piret models.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 86, Issue 4, January 2012, Pages 420–426
نویسندگان
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