کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6630414 | 1424932 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of nitrogen from chicken manure anaerobic digestion for enhanced biomethanization
ترجمه فارسی عنوان
حذف نیتروژن از هضم بی هوازی کود مایع برای افزایش بیومانیزاسیون
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کلمات کلیدی
حذف آمونیاک، سلب جریان جانبی، هضم بی هوازی کود مرغ، مهار آمونیاک،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The effects of side-stream ammonia stripping as a pre- and post-treatment on the anaerobic mono-digestion of chicken manure were investigated in laboratory-scale continuous stirred tank reactors. Ammonia stripping columns were operated at pH 10 but different temperatures (35, 55, 70â¯Â°C). Results showed that digestate stripping at 70â¯Â°C and pH 10 got the highest ammonia removing rate (18.2-45.2%), and under these conditions, the methane yield at OLR of 9â¯gâ¯VSâ¯Lâ1â¯dâ1 reached 0.199â¯Lâ¯gâ1â¯VSadded which was significantly higher than that of other digesters (0.01-0.03â¯Lâ¯gâ1â¯VSadded), although no improvement of methane yield was observed at OLR 3 and 6â¯gâ¯VSâ¯Lâ1â¯dâ1. The microbial community analysis revealed that hydrolytic and fermentative bacteria dominated all bacterial communities. Methanogenic pathway of feedstock stripping digester was predominant by hydrogenotrophic Methanimicrococcus, while hydrogenotrophic/aceticlastic Methanoscarcina was dominant in the archaeal structures of the rest digesters. However, a shift from Methanosarcina to Methanoculleus was observed in R3 (digestate stripping at 70â¯Â°C/pH 10) when dominant species were inhibited and decreased in other digesters, indicating that the high methanogenic activity in R3 was maintained by shifting to methanogens with high tolerance to inhibitors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 232, 15 November 2018, Pages 395-404
Journal: Fuel - Volume 232, 15 November 2018, Pages 395-404
نویسندگان
Kun Li, Ronghou Liu, Qiong Yu, Ruijie Ma,