کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7069582 1459923 2016 34 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of laboratory anaerobic digesters to simulate the increase of treatment rate in full-scale high nitrogen content sewage sludge and co-digestion biogas plants
ترجمه فارسی عنوان
استفاده از هضم بی هوازی آزمایشگاهی برای شبیه سازی افزایش میزان درمان در لجن فاضلاب حاوی مقادیر زیاد نیتروژن و گیاهان بیوگاز هموگلوبین
کلمات کلیدی
هضم بی هوازی نیتروژن، هموگلوبین لجن فاضلاب، زمان نگهداری هیدرولیک،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The aim of this study was to assess the effect of increasing feedstock treatment rate on the performance of full-scale anaerobic digestion using laboratory-scale reactors with digestate and feedstock from full-scale digesters. The studied nitrogen-containing feedstocks were i) a mixture of industrial by-products and pig slurry, and ii) municipal sewage sludge, which digestion was studied at 41 and 52 °C, respectively. This study showed the successful reduction of hydraulic retention times from 25 and 20 days to around 15 days, which increased organic loading rates from 2 to 3.5 kg volatile solids (VS)/m3 d and 4 to 6 kg VS/m3 d. As a result, the optimum retention time in terms of methane production and VS removal was 10-15% lower than the initial in the full-scale digesters. Accumulation of acids during start-up of the co-digestion reactor was suggested to be connected to the high ammonium nitrogen concentration and intermediate temperature of 41 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 220, November 2016, Pages 47-54
نویسندگان
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