کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
679377 | 1459942 | 2016 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving composting as a post-treatment of anaerobic digestate
ترجمه فارسی عنوان
بهبود کمپوست به عنوان درمان پس از هضم بی هوازی
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کلمات کلیدی
آمونیاک هضم بی هوازی عامل انباشته، ضد عفونی، اکسید نیتروژن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This work investigated the influences of practical parameters upon composting of digestate. The yardsticks for evaluation were digestate stabilization, nitrogenous emissions mitigation and self-heating potential. The results suggest choosing an “active” bulking agent like dry wood chips (WC) which served as free-water and nitrogen sink through composting. At an optimal volumetric WC:digestate mixing ratio of 4:1, nearly 90% of the initial NH4+/NH3 were fixed, which reduced significantly nitrogenous emissions. This mixing ratio also improved the stabilization and self-heating potential. Using small particle size WC increased narrowly O2 consumption and reduced NH3 emission. Storing used WC prior to recycling reduced 40% N2O emission compared to directly recycled WC. Recycling compost helped to decrease NH3 emission, but quadrupled N2O emission. The optimal aeration rate (15Â LÂ hâ1Â kg OM0) which was lower compared to composting of organic waste, was enough to ensure the O2 supply and ameliorate the self-heating potential through composting of digestate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 201, February 2016, Pages 293-303
Journal: Bioresource Technology - Volume 201, February 2016, Pages 293-303
نویسندگان
Yang Zeng, Amaury De Guardia, Patrick Dabert,