کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7477558 1485204 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large scale treatment of total petroleum-hydrocarbon contaminated groundwater using bioaugmentation
ترجمه فارسی عنوان
در مقیاس بزرگ درمان کل آبهای زیرزمینی آلوده به نفت و هیدروکربن با استفاده از زیست شناسی
کلمات کلیدی
بیوگرافی، هیدروکربن ها، درمان آب زیرزمینی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Bioaugmentation or the addition of microbes to contaminated sites has been widely used to treat contaminated soil or water; however this approach is often limited to laboratory based studies. In the present study, large scale bioaugmentation has been applied to total petroleum hydrocarbons (TPH)-contaminated groundwater at a petroleum facility. Initial TPH concentrations of 1564 mg L−1 in the field were reduced to 89 mg L−1 over 32 days. This reduction was accompanied by improved ecotoxicity, as shown by Brassica rapa germination numbers that increased from 52 at day 0 to 82% by the end of the treatment. Metagenomic analysis indicated that there was a shift in the microbial community when compared to the beginning of the treatment. The microbial community was dominated by Proteobacteria and Bacteroidetes from day 0 to day 32, although differences at the genus level were observed. The predominant genera at the beginning of the treatment (day 0 just after inoculation) were Cloacibacterium, Sediminibacterium and Brevundimonas while at the end of the treatment members of Flavobacterium dominated, reaching almost half the population (41%), followed by Pseudomonas (6%) and Limnobacter (5.8%). To the author's knowledge, this is among the first studies to report the successful large scale biodegradation of TPH-contaminated groundwater (18,000 L per treatment session) at an offshore petrochemical facility.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 214, 15 May 2018, Pages 157-163
نویسندگان
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