کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
576357 | 1453073 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lab-scale tests and numerical simulations for in situ treatment of polluted groundwater
ترجمه فارسی عنوان
آزمایشات مقیاس آزمایشگاهی و شبیه سازی های عددی برای درمان موضعی آب های زیرزمینی آلوده
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Methyl tert-butyl ether (MTBE) is used at significant percentages as an additive of unleaded gasoline. The physical-chemical properties of the substance (water solubility, soil organic carbon-water partition coefficient) cause high mobility and high concentrations in groundwater. Laboratory scale batch and column tests and mathematical modeling were performed to study the feasibility of a biobarrier (BB), that is an in situ permeable biological barrier with or without inoculation, for the remediation of MTBE and other gasoline-derived pollutants (benzene, toluene, ethylbenzene, o-xylene and m + p-xylenes, BTEXs) polluted groundwater and to estimate kinetic constants. The experimental results showed simultaneous biodegradation of MTBE and BTEXs, with similar removals in the uninoculated and the inoculated systems. Ranges for the first order kinetic removal were obtained for MTBE ((0.18 ± 0.02)/(0.28 ± 0.11 dâ1)), B ((0.39 ± 0.12)/(0.56 ± 0.12 dâ1)), T ((0.51 ± 0.03)/(0.78 ± 0.15 dâ1)), E ((0.46 ± 0.18)/(1.57 ± 0.21 dâ1)), o-X ((0.24 ± 0.08)/(0.64 ± 0.09 dâ1)) and m + p-X ((0.20 ± 0.04)/(1.21 ± 0.04 dâ1)). The results of the laboratory tests allowed to improve mathematical modeling in order to design a full-scale BB at a gasoline-contaminated site.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 287, 28 April 2015, Pages 162-170
Journal: Journal of Hazardous Materials - Volume 287, 28 April 2015, Pages 162-170
نویسندگان
A. Careghini, S. Saponaro, E. Sezenna, M. Daghio, A. Franzetti, I. Gandolfi, G. Bestetti,