کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7453852 1484401 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anaerobic digestion of undiluted simulant human excreta for sanitation and energy recovery in less-developed countries
ترجمه فارسی عنوان
هضم بی هوازی از مجرای ادراری انسانی برای بهداشت و بازیابی انرژی در کشورهای کمتر توسعه یافته
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
Improving access to sanitation is one of the most effective means to improve public health. Anaerobic digestion of high-strength undiluted human simulant excreta was investigated in laboratory systems. The focus was on demonstrating the suitability of using simple unmixed anaerobic digesters for the treatment of a simulant high-strength undiluted human excreta and to quantify the effects of high ammonia concentration on the biogas yield. A maximum biogas yield of 0.44 NLbiogas g− 1COD was obtained in batch experiments, while yields of 0.38 and 0.24 NLbiogas g− 1COD were obtained at 5 and 8 g total ammonia nitrogen (TAN) L− 1, respectively. Using an inoculum acclimated to high ammonia concentrations was critical to successful biogas production at these high TAN concentrations. Stable long-term anaerobic digestion of simulant human excreta at ammonia concentrations ranging from 5.20 to 7.15 g-N L− 1 was obtained in a scaled-down mimic of a low cost floating dome anaerobic digester. Overall, the results demonstrate that anaerobic digestion of undiluted human simulant excreta in simple unmixed digesters is feasible and yields biogas, which is a valuable commodity. When combined with proper hygienization of its effluent, anaerobic digestion could contribute to effective sanitation in developing countries with limited water availability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy for Sustainable Development - Volume 29, December 2015, Pages 57-64
نویسندگان
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