کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997302 1459909 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nitrogen removal by the enhanced floating treatment wetlands from the secondary effluent
ترجمه فارسی عنوان
حذف نیتروژن توسط تالاب های درمان شناور افزایش یافته از پساب ثانویه
کلمات کلیدی
فاضلاب ثانویه، تالاب پیشرفته شناور بهبود یافته، اتترتروفیک و هتروتروفیک دینتریفیکیشن، انتشار نانومواد، جامعه میکروبی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Three novel floating treatment wetlands, including autotrophic enhanced floating treatment wetland (AEFTW), heterotrophic enhanced floating treatment wetland (HEFTW) and enhanced floating treatment wetland (EFTW) were developed to remove nitrogen from the secondary effluent. Results showed that the analogously excellent nitrogen removal performance was achieved in AEFTW and HEFTW. About 89.4% of the total nitrogen (TN) was removed from AEFTW at a low S/N of 0.9 and 88.5% from HEFTW at a low C/N of 3.5 when the hydraulic retention time (HRT) was 1 d in summer. Higher nitrification and denitrification performance were achieved in AEFTW. Addition of electron donors effectively reduced the N2O emission, especially in summer and autumn. High-throughput sequencing analysis revealed that the electron donors distinctly induced the microbial shifts. Dechloromonas, Thiobacillus and Nitrospira became the most predominant genus in HEFTW, AEFTW and EFTW. And autotrophic and heterotrophic denitrification could simultaneously occur in HEFTW and AEFTW.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 234, June 2017, Pages 243-252
نویسندگان
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