کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7065843 | 1459876 | 2018 | 42 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dissipation characteristics of pyrene and ecological contribution of submerged macrophytes and their biofilms-leaves in constructed wetland
ترجمه فارسی عنوان
خصوصیات پراکنش پیرن و سهم اکولوژیکی ماکروفیتهای غوطه ور شده و برگ های بیوفیلم آنها در تالاب ساخته شده
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The dissipation characteristics of pyrene and ecological contribution of submerged macrophytes (Vallisneria natans, Hydrilla verticillata and artificial plant) and their biofilms-leaves in constructed wetland system were investigated by high-throughput sequencing. Results showed a non-negligible ecological contribution of submerged macrophytes and their biofilms-leaves in dissipating pyrene in planted sediments (33.25-43.00%) in contrast with unplanted system (23.25-26.50%). Alpha and Beta diversity analysis indicated that bacterial community structures were influenced in order of attached surfaceâ¯>â¯incubation timeâ¯>â¯spiking concentration of pyrene in sediment. Difference analysis suggested that attached surface tended to affect the rare genera up to significant level compared with incubation time. In addition, RDA analysis showed that PAH-degrading bacteria in biofilms-leaves of submerged macrophytes were positively correlated with the dissipation ratios of pyrene. Interestingly, nitrogen transforming microorganisms were also influenced in the presence of pyrene, while submerged macrophytes contributed to alleviate the impact.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 267, November 2018, Pages 158-166
Journal: Bioresource Technology - Volume 267, November 2018, Pages 158-166
نویسندگان
Zhenhua Zhao, Zhirui Qin, liling Xia, Dan Zhang, Javid Hussain,