کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7478798 | 1485212 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimizing source-separated feces degradation and fertility using nitrifying microorganisms
ترجمه فارسی عنوان
بهینه سازی تجزیه و تخمیر منبع و باروری با استفاده از میکروارگانیسم های نیتروژن
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Resource-oriented sanitation (ROS) systems play an important role in handling source-separated human sanitary wastes intended to be used for other purposes. Usually, the purpose of employing such systems is to render the source-separated human feces suitable as fertilizer or soil conditioner. However, the high volume, low degradation rate, and lack of fertility management pose challenges to such enterprises. Accordingly, treatment by applying controlled amounts of nitrifying microorganisms could be useful. The effect of adding different amounts of Nitrosomonas Europaea bio-seed, along with a certain amount of Nitrobacter Winogradskyi bio-seed, to source-separated human feces was investigated. The results show that adding 7000-8000 or more N. Europaea cells, along with 10,000 N. Winogradskyi cells, to 1 g feces, resulted in up to 90% degradation of the organic matter by enhancing the growth of heterotrophic microorganisms. Moreover, the nitrogen composition and pH of the degraded feces were optimized to meet the criteria for standard fertilizer. The results can be useful for managing source-separated feces in ROS systems in accordance with the specific aims of such systems, i.e., reducing feces volume by bio-degradation and increasing the fertility to meet the standard criteria for fertilizer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 206, 15 January 2018, Pages 540-546
Journal: Journal of Environmental Management - Volume 206, 15 January 2018, Pages 540-546
نویسندگان
Shervin Hashemi, Mooyoung Han,