کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4769094 | 1425536 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phytoremediation experiments with Helianthus tuberosus under different pH and heavy metal soil concentrations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phytoremediation experiments with Helianthus tuberosus under different pH and heavy metal soil concentrations Phytoremediation experiments with Helianthus tuberosus under different pH and heavy metal soil concentrations](/preview/png/4769094.png)
چکیده انگلیسی
As results, soil pH and heavy metal concentrations were identified as crucial factors for plant growth and success of phytoremediation. High accumulation of Fe (up to 1.48Â g/kg), Mn (up to 1.68Â g/kg) and Zn (up to 853Â mg/kg) was measured in the roots; shoots accumulated up to 2.6Â g/kg Ni, 11.4Â g/kg Mn and 6.06Â g/kg Zn. The accumulation factors for the main heavy metals in the roots were determined. The heavy metal transfer factors Tf from roots to shoots for Ni, Zn and Mn were in the range of 11 to 15; hence the upper plant parts accumulated these metals more than the tenfold compared to the root concentrations. In contrast, heavy metal concentrations in tubers were reduced to 50% of Ni, 30% of Zn and Cu, 20% of Mn, 12% of Cd and 10% of Pb compared to the root contents. Fe, Cu and Pb were much less accumulated in the shoots, they mostly had been retained in the root system. The results also demonstrate the effects of specific transport, sequestration and protection mechanisms for each metal species in the plants. As results of the experiments, H. tuberosus represents a suitable and robust phytoremediation plant species for the phytoextraction of Mn, Zn, Cd and Ni under the given conditions from the site.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 168, March 2017, Pages 153-158
Journal: Hydrometallurgy - Volume 168, March 2017, Pages 153-158
نویسندگان
S. Willscher, L. Jablonski, Z. Fona, R. Rahmi, J. Wittig,