کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997018 | 1459902 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance of autotrophic nitrogen removal from digested piggery wastewater
ترجمه فارسی عنوان
عملکرد حذف اتوتروفیک نیتروژن از فاضلاب هضم فلفل
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The performance of an autotrophic nitrogen removal process to treat digested piggery wastewater (DPW) was investigated by gradually shortening the HRT and enhancing the DPW concentration during 390 days of operation. The results showed that the total nitrogen removal rate and efficiency reached 3.9 kg-N mâ3 dayâ1 and 73%, which were significantly higher than the levels reported previously. A high relative abundance of Nitrosomonas (4.2%) and functional microbes (12.15%) resulted in a high aerobic ammonium oxidizing activity (1.25 ± 0.1 g-N g VSSâ1 dâ1), and a good settling ability (SVI, 78.42 mL gâ1 SS) resulted in a high sludge concentration (VSS, 11.01 g Lâ1), which laid a solid foundation for the excellent performance. High-throughput pyrosequencing indicated that, compared with synthetic wastewater, the DPW decreased the relative abundances of every functional group of nitrogen removal microbes, and increased relative abundances of anaerobes (15.7%), sulfur-oxidizing bacteria (9.4%) and methanogens (40.8%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 241, October 2017, Pages 465-472
Journal: Bioresource Technology - Volume 241, October 2017, Pages 465-472
نویسندگان
Shuang Wang, Lan Wang, Liangwei Deng, Dan Zheng, Yunhong Zhang, Yiqi Jiang, Hongnan Yang, Yunhui Lei,