کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7067537 | 1459885 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of temperature on microbial diversity and nitrogen removal performance of an anammox reactor treating anaerobically pretreated municipal wastewater
ترجمه فارسی عنوان
اثر دما بر تنوع میکروبی و عملکرد حذف نیتروژن یک راکتور آناموکسی که پساب تصفیه شده شهری را از نظر بی هوازی درمان می کند
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The effects of temperature reduction (from 35â¯Â°C to 20â¯Â°C) on nitrogen removal performance and microbial diversity of an anammox sequencing batch reactor were evaluated. The reactor was fed for 148â¯days with anaerobically pretreated municipal wastewater amended with nitrite. On average, removal efficiencies of ammonium and nitrite were high (96%) during the enrichment period and phases 1 (at 35â¯Â°C) and 2 (at 25â¯Â°C), and slightly decreased (to 90%) when the reactor was operated at 20â¯Â°C. Deep sequencing analysis revealed that microbial community structure changed with temperature decrease. Anammox bacteria (Ca. Brocadia and Ca. Anammoximicrobium) and denitrifiers (Burkholderiales, Myxococcales, Rhodocyclales, Xanthomonadales, and Pseudomonadales) were favoured when the temperature was lowered from 35â¯Â°C to 25â¯Â°C, while Anaerolineales and Clostridiales were negatively affected. The results support the feasibility of using the anammox process for mainstream nitrogen removal from anaerobically pretreated municipal wastewater at typical tropical temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 258, June 2018, Pages 208-219
Journal: Bioresource Technology - Volume 258, June 2018, Pages 208-219
نویسندگان
Luyara de Almeida Fernandes, Alyne Duarte Pereira, CÃntia Dutra Leal, Russell Davenport, David Werner, Cesar Rossas Mota Filho, Thiago Bressani-Ribeiro, Carlos Augusto de Lemos Chernicharo, Juliana Calabria de Araújo,