کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4392408 1618166 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Integrated approach of metal removal and bioprecipitation followed by fungal degradation of organic pollutants from contaminated soils
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش خاک شناسی
پیش نمایش صفحه اول مقاله
Integrated approach of metal removal and bioprecipitation followed by fungal degradation of organic pollutants from contaminated soils
چکیده انگلیسی
This study reports the assessment of a novel process combining sequential treatments of a historically contaminated soil from the ACNA site (Cengio, Savona, Italy), a decommissioned industrial area. The soil was leached with 0.5 M citric acid leading to a removal of metals in the following order: Pb (74.2%) > Cu (72.6%) > Zn (40.2%) > Ni (55.7%) > Cd (41.5%) > Cr > (21.7%) Co > (19%) Fe (8.2%) with a concomitant low removal of organic contaminants (12%). The leachate was then incubated with the metal-resistant Klebsiella oxytoca strain BAS-10, capable of using residual citrate to produce an iron gel that co-precipitated metals. Concomitantly, the leached solid waste was bioaugmented with the autochthonous isolate of Allescheriella sp. DABAC 1 leading to a complete degradation of several organic contaminants, including trichlorobenzene, naphtalene, dichloroaniline and pentachloroaniline. The overall removals of organic contaminants by the fungus were 44.3% and 63.8% in non-leached and leached soil.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Soil Biology - Volume 43, Issues 5–6, November–December 2007, Pages 380-387
نویسندگان
, , , , , ,